NHA Phlebotomy Practice Test: Master Your Skills With This Quiz
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What is another name for winged infusion sets?
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Caterpillar
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Dragonfly
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Butterfly
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Beetlebug
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About This Quiz
Step into the world of phlebotomy mastery with the NHA Phlebotomy Practice Test. Are you ready to take this test and test your knowledge? As you know, one of the most common ways to get a diagnosis is through phlebotomy—drawing blood to be analyzed by lab technicians. If you’re preparing for your NHA certification in this essential technique, this quiz See moreis perfect for testing what you remember from classwork.
Every question is followed by a detailed explanation, offering a comprehensive review of each answer’s rationale. This NHA practice test allows for a holistic learning experience, helping you understand phlebotomy techniques, ethical considerations, and best practices. Ideal for students or experienced professionals, this quiz is your tool for mastering phlebotomy skills. Don’t forget to share this free practice test with others on the same certification journey!
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- 2.
An open wound can be a portal of entry in an infection chain.
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True
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False
Correct Answer
A. TrueExplanation
An open wound can be a portal of entry in an infection chain because it provides a direct pathway for microorganisms, such as bacteria or viruses, to enter the body. When the skin is broken, it creates an opportunity for pathogens to invade and cause an infection. This is why it is important to keep wounds clean and properly bandaged to prevent the entry of harmful microorganisms.Rate this question:
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- 3.
What part of the infant is a PKU test performed on?
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Toe
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Finger
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Heel
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Forehead
Correct Answer
A. HeelExplanation
A PKU test, also known as a newborn screening test, is performed on the heel of an infant. This is because the heel is a convenient and accessible spot for collecting a small blood sample. The test is done to check for the presence of phenylketonuria (PKU), a genetic disorder that affects the body's ability to process an amino acid called phenylalanine. By performing the test on the heel, healthcare professionals can quickly and easily obtain the necessary blood sample to screen for PKU in newborns.Rate this question:
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- 4.
Latex sensitivity is an allergic reaction.
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True
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False
Correct Answer
A. TrueExplanation
Latex sensitivity refers to an allergic reaction to latex. This means that when a person with latex sensitivity comes into contact with latex, their immune system reacts and causes symptoms such as itching, redness, and swelling. Therefore, the statement "Latex sensitivity is an allergic reaction" is true.Rate this question:
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- 5.
If a patient refuses treatment you should
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Restrain him
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Call 911
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Tell your supervisor
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Tell them it is their life
Correct Answer
A. Tell your supervisorExplanation
When a patient refuses treatment, it is important to inform your supervisor. This is because your supervisor needs to be aware of the situation and can provide guidance on how to handle it appropriately. They may have specific protocols or procedures in place for dealing with patients who refuse treatment. By informing your supervisor, you ensure that the refusal is documented and that the appropriate steps are taken to address the situation.Rate this question:
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- 6.
The proper way to insert a needle is with the bevel facing ____________.
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Up
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Down
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Left
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Right
Correct Answer
A. UpExplanation
The proper way to insert a needle is with the bevel facing up. This ensures that the needle can easily penetrate the skin and tissue without causing excessive damage or pain. Additionally, inserting the needle with the bevel facing up allows for better control and accuracy during the procedure.Rate this question:
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- 7.
Which of the following is a recommended safety practice for a phlebotomist during blood collection?
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Using a larger needle gauge for faster blood flow.
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Reusing disposable gloves to reduce waste.
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Avoiding the use of safety devices on needles.
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Properly disposing of used needles in a sharps container.
Correct Answer
A. Properly disposing of used needles in a sharps container.Explanation
Properly disposing of used needles in a sharps container is a critical safety practice. This prevents needlestick injuries, reduces the risk of contamination, and ensures safe disposal of biohazardous materials. Always follow proper disposal procedures and regulations when working with needles and sharps in healthcare settings.Rate this question:
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- 8.
The most important step in a routine venipuncture.
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Gathering equipment
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Palpate veins
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Identify patient
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Tying the tourniquet
Correct Answer
A. Identify patientExplanation
Identifying the patient is the most important step in a routine venipuncture because it ensures that the correct patient is receiving the procedure. This step helps prevent any mix-ups or errors in patient identification, which is crucial for patient safety and accurate medical records. By confirming the patient's identity, healthcare professionals can proceed with the venipuncture confidently, knowing that they are providing the correct treatment to the right individual.Rate this question:
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- 9.
When you explain the venipuncture procedure to the patient and they agree to the test it is called _______.
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Getting the blood
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Informed consent
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Constant talking
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HIPAA
Correct Answer
A. Informed consentExplanation
Informed consent refers to the process of explaining a medical procedure, such as venipuncture, to a patient and obtaining their agreement to undergo the test. It ensures that patients are fully informed about the procedure, its potential risks and benefits, and any alternative options available to them. Informed consent is an important ethical and legal requirement in healthcare, as it respects the patient's autonomy and right to make decisions about their own healthcare.Rate this question:
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- 10.
Which of the following is not considered Personal Protective Equipment (PPE)?
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Mask
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Goggles
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Room dividers
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Gloves
Correct Answer
A. Room dividersExplanation
Room dividers are not considered personal protective equipment (PPE) because they do not provide any form of protection against hazards or contaminants. PPE is designed to protect the wearer from potential risks in their environment, such as masks for filtering out airborne particles, goggles for protecting the eyes, and gloves for protecting the hands. Room dividers, on the other hand, are typically used for creating separate spaces or dividing a room for organizational or privacy purposes, and do not offer any form of protection.Rate this question:
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- 11.
What is the preferred antiseptic for venipuncture?
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Betadine
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Iodine
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Isopropyl alcohol
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Jack Daniels
Correct Answer
A. Isopropyl alcoholExplanation
Isopropyl alcohol is the preferred antiseptic for venipuncture because it effectively kills bacteria and other microorganisms on the skin, reducing the risk of infection. It is also less likely to cause skin irritation compared to iodine or betadine. Jack Daniels is not a suitable antiseptic for venipuncture as it is an alcoholic beverage and not a medical-grade antiseptic.Rate this question:
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- 12.
What is the most important step in preventing infections?
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Using tissues
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Handwashing
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Wearing gloves
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Isolation
Correct Answer
A. HandwashingExplanation
Handwashing is the most important step in preventing infections because it helps to remove bacteria, viruses, and other germs from our hands. Our hands come into contact with various surfaces throughout the day, and if we touch our face or eat without washing our hands, we can easily introduce these germs into our bodies. Handwashing with soap and water for at least 20 seconds is effective in killing and removing germs, reducing the risk of infections. It is a simple and cost-effective measure that can be practiced by everyone to maintain good hygiene and prevent the spread of infections.Rate this question:
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- 13.
Tubes may lose their vacuum due to ______________________.
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Manufacturing defects
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Expired tube
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A fine crack in the tube
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All of the above
Correct Answer
A. All of the aboveExplanation
Tubes may lose their vacuum due to various factors, including manufacturing defects, expiration, and fine cracks in the tube. These issues compromise the integrity of the vacuum seal, affecting the tube's ability to maintain proper pressure for blood collection. Healthcare professionals must carefully assess tubes for potential defects to ensure accurate and reliable sample collection in clinical settings.Rate this question:
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- 14.
Which additive is usually in a lavender tube?
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Citrate
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EDTA
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Heparin
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Oxalate
Correct Answer
A. EDTAExplanation
EDTA is usually found in a lavender tube. EDTA stands for ethylenediaminetetraacetic acid and is commonly used as an anticoagulant in blood collection tubes. It works by binding to calcium ions, preventing blood clotting. The lavender tube is typically used for hematology tests, such as complete blood count (CBC) and blood cell differentials.Rate this question:
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- 15.
In a routine blood draw the red tube is drawn before the green tube.
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True
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False
Correct Answer
A. TrueExplanation
In a routine blood draw, the order in which blood is drawn can vary depending on the specific laboratory's protocol and the tests being conducted. However, it's common practice to draw blood into tubes with different colored stoppers to ensure that the correct tests can be performed. For example, the red-top tube is often used for basic blood chemistry tests, while the green-top tube is used for tests that require plasma, such as certain chemistry and drug tests. Therefore, it's not unusual for the red tube to be drawn before the green tube in a routine blood draw.Rate this question:
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- 16.
What is the preferred site for venipuncture?
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Thrombotic vein
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Antecubital fossa
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Elbow
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Ulnar vein
Correct Answer
A. Antecubital fossaExplanation
The preferred site for venipuncture is the antecubital fossa. This area is located in the bend of the elbow and is commonly used for venipuncture procedures because it is easily accessible and has a large network of veins. The antecubital fossa is also less likely to cause complications such as nerve damage or thrombosis compared to other sites like the ulnar vein or thrombotic vein.Rate this question:
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- 17.
A patient in the Oncology Dept. is probably being treated for _______________.
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Diabetes
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Pregnancy
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Phlebitis
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Cancer
Correct Answer
A. CancerExplanation
A patient in the Oncology Dept. is probably being treated for cancer. The Oncology Dept. specializes in the diagnosis and treatment of cancer, so it is likely that a patient in this department is being treated for cancer.Rate this question:
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- 18.
The first drop of blood in a capillary puncture is the best for analysis.
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True
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False
Correct Answer
A. FalseExplanation
The statement is false because the first drop of blood in a capillary puncture is not always the best for analysis. The first drop of blood can be contaminated with tissue fluid or alcohol from the skin, which can affect the accuracy of the analysis. It is recommended to discard the first drop and collect subsequent drops for analysis.Rate this question:
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- 19.
Which tube contains sodium citrate?
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Light-blue
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Red
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Green
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Yellow
Correct Answer
A. Light-blueExplanation
The light-blue tube contains sodium citrate. Sodium citrate is commonly used as an anticoagulant in blood collection tubes, and the light-blue tube is specifically designed for coagulation tests, which require the blood to be collected in an anticoagulant tube.Rate this question:
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- 20.
Microorganisms that cause diseases
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Hereditary
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Normal flora
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Nonpathogens
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Pathogenic
Correct Answer
A. PathogenicExplanation
Pathogenic microorganisms are those that are capable of causing diseases in humans, animals, or plants. They have the ability to invade and multiply in the host organism, leading to the development of symptoms and illness. These microorganisms can be bacteria, viruses, fungi, or parasites. In contrast, nonpathogens are microorganisms that do not cause diseases and may even have beneficial effects on the host. The term "pathogenic" is used to describe microorganisms that have the potential to harm and cause illness.Rate this question:
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- 21.
The following were collected for a routine venipuncture. Which item is incorrect?
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Tubes
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Iodine swab
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Tourniquet
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Safety needles
Correct Answer
A. Iodine swabExplanation
The incorrect item for routine venipuncture is the "iodine swab." Typically, alcohol swabs are used for skin disinfection before blood collection, not iodine swabs. The other items listed—tubes, tourniquet, and safety needles—are standard equipment used in routine venipuncture procedures to collect blood samples safely and efficiently. Therefore, iodine swabs do not align with standard practice for venipuncture.Rate this question:
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- 22.
Sodium Citrate is the additive in which tube?
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Red
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Gray
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Light blue
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Green
Correct Answer
A. Light blueExplanation
Sodium citrate is commonly used as an anticoagulant in blood collection tubes. The light blue tube is specifically designed for coagulation testing, and it contains sodium citrate as the additive. Sodium citrate prevents blood from clotting by binding to calcium ions, which are necessary for the clotting process. This allows for accurate testing of clotting factors and other coagulation parameters. Therefore, the correct answer is light blue.Rate this question:
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- 23.
Where is blood collected, stored and prepared for transfusions?
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Hematology
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Blood Bank
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Chemistry
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Immunology
Correct Answer
A. Blood BankExplanation
Blood is collected, stored, and prepared for transfusions in a blood bank. A blood bank is a specialized facility that handles the collection, processing, and storage of blood and blood products. It ensures the safety and availability of blood for transfusions by conducting tests to determine blood type, screening for infectious diseases, and properly storing the blood products. The blood bank also prepares blood components such as red blood cells, plasma, and platelets based on specific patient needs.Rate this question:
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- 24.
Which of the following veins in the arm are most subjected to venipuncture?
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Basilic
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Median Cubital
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Brachial
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Cephalic
Correct Answer
A. Median CubitalExplanation
The median cubital vein is the most commonly used vein for venipuncture in the arm. It is located in the middle of the arm and is often visible and easily accessible. It is preferred for venipuncture because it is relatively large, straight, and does not tend to move or roll during the procedure, making it easier to insert a needle and collect blood samples. The basilic, brachial, and cephalic veins are also commonly used for venipuncture, but the median cubital vein is typically the first choice.Rate this question:
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- 25.
Which needle has the largest gauge?
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16
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21
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22
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23
Correct Answer
A. 16Explanation
The needle with the largest gauge is 16. Gauge refers to the size of the needle's opening, with a larger gauge indicating a larger opening. Therefore, out of the given options, the needle with a gauge of 16 has the largest opening.Rate this question:
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- 26.
Taking aspirin is most likely going to effect a BT test.
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True
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False
Correct Answer
A. TrueExplanation
Taking aspirin is most likely going to affect a BT test. This is because aspirin is a blood thinner and can interfere with the clotting process. A BT test measures the time it takes for blood to clot, so if someone has taken aspirin, it can prolong the clotting time and give inaccurate results. Therefore, it is true that taking aspirin is most likely going to affect a BT test.Rate this question:
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- 27.
The hormone detected in a positive pregnancy test is
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ACTH
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GH
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HCG
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TSH
Correct Answer
A. HCGExplanation
The hormone detected in a positive pregnancy test is HCG (human chorionic gonadotropin). HCG is produced by the placenta during pregnancy and is responsible for maintaining the production of progesterone, which is essential for a healthy pregnancy. When a woman is pregnant, HCG levels rise rapidly, and a pregnancy test detects the presence of this hormone in the urine or blood. Therefore, a positive pregnancy test indicates the presence of HCG in the body.Rate this question:
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- 28.
Which tube is drawn last in a standard venipuncture procedure?
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Blood culture tube
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Lavender
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Light-blue
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Red
Correct Answer
A. LavenderExplanation
In a standard venipuncture procedure, the lavender tube is drawn last. This is because the lavender tube is used to collect blood for a complete blood count (CBC) test, which requires an anticoagulant to prevent clotting. Drawing the lavender tube last ensures that the other tubes, such as the blood culture tube, light-blue tube, and red tube, are collected first to avoid contamination or interference with the lavender tube sample.Rate this question:
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- 29.
Sodium Citrate tubes have what color stoppers?
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Light blue
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Red
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Lavender
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Green
Correct Answer
A. Light blueExplanation
Sodium Citrate is commonly used as an anticoagulant in blood collection tubes. These tubes are color-coded to indicate the type of additive present. Light blue stoppers are typically used for tubes containing sodium citrate. This color coding system helps healthcare professionals easily identify the appropriate tube for specific tests or procedures.Rate this question:
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- 30.
A clean catch test is collected in a:
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Red tube
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Royal blue tube
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Sterile cup
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Yellow tube
Correct Answer
A. Sterile cupExplanation
A clean catch test is collected in a sterile cup to ensure that the urine sample is not contaminated by any external factors. The sterile cup helps maintain the integrity of the sample and prevents any introduction of bacteria or other substances that could affect the test results. Using a sterile cup also allows for accurate analysis of the urine sample and helps in diagnosing any potential medical conditions.Rate this question:
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- 31.
The order of draw for venipuncture is: BC, blue, serum, green, EDTA, gray.
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True
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False
Correct Answer
A. TrueExplanation
The order of draw in venipuncture is critical to avoid cross-contamination from different additives in blood collection tubes. The correct sequence, according to the Clinical and Laboratory Standards Institute (CLSI), is:
Blood cultures (BC)
Coagulation tube (Blue)
Serum tubes (Serum)
Heparin tubes (Green)
EDTA tubes (EDTA)
Oxalate/fluoride tubes (Gray)Rate this question:
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- 32.
Lavender and Green tubes should all be inverted 8 times each.
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True
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False
Correct Answer
A. TrueExplanation
The given statement is true because inverting the tubes helps to mix the contents thoroughly. By inverting the tubes 8 times each, it ensures that the lavender and green substances are well mixed and any components that may have settled at the bottom are evenly distributed. This is important for accurate and consistent results in any experiment or analysis that involves these substances.Rate this question:
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- 33.
There is a 9 to 1 ratio of blood to anticoagulant in a light blue tube.
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True
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False
Correct Answer
A. TrueExplanation
In a light blue tube, there is a 9 to 1 ratio of blood to anticoagulant. This means that for every 9 parts of blood, there is 1 part of anticoagulant. This ratio is important because it helps prevent the blood from clotting, allowing for accurate testing and analysis.Rate this question:
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- 34.
A drug known to interfere with urine tests should be discontinued 48-72 hours prior to the test.
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True
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False
Correct Answer
A. TrueExplanation
The statement suggests that a drug that interferes with urine tests should be stopped 48-72 hours before the test. This implies that if the drug is not discontinued within this timeframe, it may still be present in the urine during the test and interfere with the accuracy of the results. Therefore, the statement is true.Rate this question:
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- 35.
Using a butterfly may be necessary if the vein collapses with the evacuated tube system.
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True
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False
Correct Answer
A. TrueExplanation
A butterfly needle is a smaller gauge needle that is used when a patient's vein collapses or is difficult to access. It is commonly used in situations where the evacuated tube system is being used to draw blood. The evacuated tube system involves using a vacuum to draw blood into the collection tubes. If the vein collapses during this process, a butterfly needle may be necessary to successfully draw blood. Therefore, the statement that using a butterfly may be necessary if the vein collapses with the evacuated tube system is true.Rate this question:
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- 36.
Failing to provide reasonable standards of care, causing someone to suffer an injury is known as ____________.
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Trauma
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Negligence
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Tort
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Battery
Correct Answer
A. NegligenceExplanation
Negligence refers to the failure to provide reasonable standards of care, resulting in someone suffering an injury. It is a legal concept that holds individuals or organizations responsible for their actions or lack of actions that cause harm to others. Negligence requires proving that the defendant owed a duty of care to the plaintiff, breached that duty, and caused harm as a result. In this case, negligence is the correct answer as it accurately describes the situation where someone suffers an injury due to a failure to provide reasonable care.Rate this question:
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- 37.
Tiny red spots on the skin caused by the rupturing of capillaries are called _____________.
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Phlebitis
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Trauma
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Petechiae
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Pimples
Correct Answer
A. PetechiaeExplanation
Petechiae are tiny red spots on the skin that occur when capillaries rupture and cause small amounts of blood to leak into the skin. This can be caused by various factors such as injury, certain medical conditions, or certain medications. Phlebitis refers to inflammation of a vein, trauma refers to physical injury, and pimples are small, raised bumps on the skin caused by blocked hair follicles.Rate this question:
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- 38.
Which tube is used for PTT?
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Light blue
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Green
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Red
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Gray
Correct Answer
A. Light blueExplanation
PTT stands for Partial Thromboplastin Time, which is a blood test used to evaluate the effectiveness of the clotting system. The light blue tube is commonly used for coagulation tests, including PTT, because it contains sodium citrate as an anticoagulant. Sodium citrate prevents the blood from clotting by binding to calcium ions, allowing accurate measurement of clotting time. Therefore, the correct tube for PTT testing is the light blue tube.Rate this question:
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- 39.
All patients are presumed to be infectious for ___________.
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Blood borne pathogens
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TB
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Flu
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Common cold
Correct Answer
A. Blood borne pathogensExplanation
All patients are presumed to be infectious for blood borne pathogens. This means that healthcare professionals must take precautions to prevent the transmission of diseases that are transmitted through blood, such as HIV, hepatitis B, and hepatitis C. This assumption is made to ensure the safety of both the healthcare workers and other patients.Rate this question:
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- 40.
Lipemic bloodserum appears:
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Bluish
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Milky
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Purple
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Thick
Correct Answer
A. MilkyExplanation
Lipemic blood serum appears milky due to the presence of excess lipids or fats in the serum. This can be caused by various factors such as high levels of triglycerides, cholesterol, or certain medical conditions. The milky appearance is a result of the scattering of light by the lipid particles suspended in the serum. Lipemic serum is commonly observed in individuals with conditions like hyperlipidemia or after consuming a high-fat meal. It can also be seen in certain medical tests, where the blood sample is not properly fasted before collection.Rate this question:
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- 41.
A green top tube usually contains
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EDTA
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Citrate
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Heparin
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Oxalate
Correct Answer
A. HeparinExplanation
A green top tube usually contains heparin. Heparin is an anticoagulant that prevents blood from clotting by inhibiting the formation of fibrin. It is commonly used for tests that require plasma, such as blood gas analysis, as it prevents clotting and allows for accurate results. EDTA is usually found in purple top tubes, citrate in blue top tubes, and oxalate in gray top tubes.Rate this question:
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- 42.
Where do blood cells originate?
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Heart
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Lungs
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Bone marrow
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Capillaries
Correct Answer
A. Bone marrowExplanation
Blood cells originate in the bone marrow. The bone marrow is a soft tissue found inside the bones, and it is responsible for producing all types of blood cells, including red blood cells, white blood cells, and platelets. These cells are essential for various functions in the body, such as carrying oxygen, fighting infections, and clotting blood. The bone marrow continuously produces and releases new blood cells into the bloodstream to maintain a healthy balance.Rate this question:
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- 43.
Sclerosed veins feel ______________.
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Spongy
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Cordlike
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Movable
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Square
Correct Answer
A. CordlikeExplanation
Sclerosed veins feel cordlike because when veins become hardened or fibrotic due to conditions such as chronic venous insufficiency or varicose veins, they lose their elasticity and become thickened. This causes the veins to feel like cords or ropes under the skin.Rate this question:
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- 44.
Bacteria and parasites belong to which type of hazard?
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Biologic
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Chemical
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Physical
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Allergic
Correct Answer
A. BiologicExplanation
Bacteria and parasites belong to the biologic type of hazard because they are living organisms that can cause harm or disease. Unlike chemical or physical hazards, which involve non-living substances or environmental factors, biologic hazards involve the presence of microorganisms that can infect and harm humans or other organisms. These hazards can include bacterial infections, parasitic infestations, and the spread of diseases.Rate this question:
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- 45.
In a routine venipuncture the lavender tube should be drawn before the red tube.
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True
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False
Correct Answer
A. FalseExplanation
In a routine venipuncture, the order in which the tubes are drawn is important to ensure accurate test results. The correct order is to draw the tubes in the following sequence: first, the tubes for coagulation tests (usually light blue or green), then the tubes for other tests such as chemistry or immunology (usually red or gold), and finally the tubes for hematology tests (usually lavender or purple). Therefore, the correct answer is false, as the lavender tube should be drawn after the red tube in a routine venipuncture.Rate this question:
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- 46.
Glycolysis occurs faster in newborns.
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True
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False
Correct Answer
A. TrueExplanation
Glycolysis is the process by which glucose is broken down to produce energy. It is an important metabolic pathway that occurs in all living organisms. In newborns, glycolysis occurs at a faster rate compared to adults. This is because newborns have a higher metabolic rate and energy demand due to their rapid growth and development. Additionally, newborns rely heavily on glycolysis for energy production as their oxidative phosphorylation system is not fully developed. Therefore, it can be concluded that glycolysis occurs faster in newborns.Rate this question:
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- 47.
Which is not a reason for failure to collect blood?
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Tube lost vacuum
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Bevel of the needle against the vein side
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Needle not fully in the vein
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Patient drank too much liquid
Correct Answer
A. Patient drank too much liquidExplanation
The statement "patient drank too much liquid" is not typically a reason for failure to collect blood during venipuncture because excessive liquid intake does not directly affect the ability to access and draw blood from a vein. Instead, issues like vein visibility, needle placement, or equipment problems are more common causes of collection difficulties.Rate this question:
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- 48.
Which is used for PT and PTT?
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Red top
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Green top
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Light blue top
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Gray top
Correct Answer
A. Light blue topExplanation
The light blue top is used for PT (prothrombin time) and PTT (partial thromboplastin time) tests. These tests are used to evaluate the blood's ability to clot and determine if there are any abnormalities in the clotting process. The light blue top tube contains sodium citrate as an anticoagulant, which prevents the blood from clotting during the test. This allows for accurate measurement of the clotting factors in the blood.Rate this question:
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- 49.
Which test must be performed on whole blood?
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BUN
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CBC
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CPK
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PTT
Correct Answer
A. CBCExplanation
The test that must be performed on whole blood is CBC (Complete Blood Count). This test provides important information about the different components of blood, such as red blood cells, white blood cells, and platelets. It helps in diagnosing various conditions like anemia, infections, and blood disorders. By analyzing the CBC results, healthcare professionals can assess a person's overall health and identify any abnormalities or potential underlying issues. Therefore, performing a CBC is crucial for a comprehensive evaluation of a person's blood and overall well-being.Rate this question:
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Apr 10, 2025Quiz Edited by
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Nov 02, 2012Quiz Created by
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