NCCT Practice Test - Lab Review Part One
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This is the review questions from the large book for the NCCT MA exam.
- 1.The blood lancet is used for the collection of blood specimens by______.
- A.
Injection
- B.
Suction
- C.
Cutting
- D.
Skin puncture
- 2.The standard point of the lancet to be used when collecting blood from a newborn heel is ____ in length
- A.
2.4 MM
- B.
3.6MM
- C.
4.7MM
- D.
5.5 MM
- 3.The most important step in the performance of a venipuncture is _____.
- A.
Correct needle gauge
- B.
Appropriate cleansing agent
- C.
Positively identifying the patient
- D.
Appropriate tourniquet
- 4.To determine the size of the needle remember the higher the gauge number the _____ the needle
- A.
Longer
- B.
Smaller
- C.
Larger
- D.
Shorter
- 5.An instrument called a centrifuge ______.
- A.
Freezes specimens
- B.
Heats specimens
- C.
Is used for incubation
- D.
Separates the cellular and liquid portion of the blood
- 6.Rubber sleeves on an evacuated tube system make it possible for ______.
- A.
Sterilization
- B.
Slower draw of blood
- C.
Multiple use
- D.
Faster draw of blood
- 7.When cleansing the venipuncture site, it is good practice to:
- A.
Wipe the site back and forth quickly with an alcohol prep
- B.
Blow on the alcohol to dry it so it doesnt burn
- C.
Cleanse the site from the inside out and allow to air dry
- D.
Have the patient wave the arm in the air to dry it faster
- 8.Preparing for a glucose tolerance test _____ hours before or during the test, the patient should not eat, smoke, drink coffee or alcohol.
- A.
One
- B.
Ten
- C.
One half
- D.
Two
- 9.During a venipuncture, to secure the needle during insertion into the tube stopper, you need a _____
- A.
Holder
- B.
Sleeve
- C.
Tape
- D.
Ball of cotton
- 10.In the evacuated blood collection system the evacuated glass tubes come in different sizes, and the stoppers are ____ to denote the typeof additive or lack of one.
- A.
Striped
- B.
Stamped
- C.
Serrated
- D.
Color coded
- 11.Which needle gauges are most commonly used for venipuncture?
- A.
24-25
- B.
21-22
- C.
19-20
- D.
16-18
- 12.When performing a venipuncture, the tourniquet should be wrapped around the arm about three to four inces from where you are going to ___ for a vein.
- A.
Apply soap
- B.
Scrape
- C.
Tap
- D.
Feel
- 13.When performing a venipuncture, if you have the patient ____ the veins will become more prominent.
- A.
Cough
- B.
Hold their breath
- C.
Make a fist
- D.
Take a deep breath
- 14.Which of the following is false?
- A.
Veins feel like an elastic tube
- B.
Veins pulsate
- C.
Veins give under pressure
- D.
Veins go different directions
- 15.Use your index finger when you ____ for a vein.
- A.
Stick
- B.
Scratch
- C.
Palpate
- D.
Inject
- 16.Arterioles are the smallest type of ____.
- A.
Tendons
- B.
Arteries
- C.
Bones
- D.
Veins
- 17.The maximum time a tourniquet should be tied on the upper arm while drawing blood is ___.
- A.
4 minutes
- B.
3 minutes
- C.
2 minutes
- D.
1 minute
- 18.To cleanse the typical venipuncture site, begin at the intended site of the draw and ____.
- A.
Work in a circle to the periphery
- B.
Wipe carefully back and forth
- C.
Cleanse vigorously for 30 seconds
- D.
Use a lifting motion to move away from the skin
- 19.The venipuncture site should be cleansed with _____.
- A.
A damp solution
- B.
A paper towel
- C.
The back of your hand
- D.
An alcohol prep
- 20.When using the centrifuge, make sure equal weights are _____.
- A.
Side by side
- B.
Liquid
- C.
Opposite each other
- D.
One space apart
- 21.The lid to the centrifuge should be kept _____ when in use.
- A.
Closed
- B.
Open
- C.
Ajar
- D.
Lifted
- 22.When using an evacuated tube for collection of electrolytes use a ____.
- A.
Blue-top tube
- B.
Red-top tube
- C.
Balck-top tube
- D.
Lavender-top tube
- 23.When collecting blood for a hematocrit test use a ______.
- A.
Lavender-top
- B.
Red-top
- C.
Blue-top
- D.
Yellow-top
- 24.When collecting blood for cholesterol tests use a ____ top evacuated tube
- A.
Red
- B.
Yellow
- C.
Blue
- D.
Lavender
- 25.The primary anticoagulant additive EDTA removes calcium by forming insoluble or un-ionized calcium salts. It has an advantage of preventing platelet clumping and the formation of artifacts, therefore, good for the preparation of ____.
- A.
Background staining
- B.
Red cell preservation
- C.
Clotting
- D.
Blood films
- 26.Sodium citrate is an anticoagulant of choice for coagulation studies because it protects certain of the ____.
- A.
Pro coagulants
- B.
Red blood cells
- C.
White blood cells
- D.
Enzyme inhibitors
- 27.The tube to collect whole blood with an additive in it has a ___ stopper
- A.
Red
- B.
Lavender
- C.
Green
- D.
Yellow
- 28.The color coding for a stopper of a tube with no additives is (for collection of serum) ____.
- A.
Green
- B.
Black
- C.
Red
- D.
Blue
- 29.At the location where you are going to feel for a vein, wrap the tourniquet around the arm approximately ____ above the area.
- A.
Nine to ten inches
- B.
One foot
- C.
Three to four inches
- D.
One inch
- 30.The cephalic, medial cubital, and basilic veins are ____ used for venipuncture.
- A.
Seldom
- B.
Never
- C.
Dangerous when
- D.
Primarily
- 31.When doing a venipuncture the syringe or tube should be _____ the venipuncture site to prevent back flow
- A.
Above
- B.
Below
- C.
Moved from side to side
- D.
Moved in and out
- 32.When anticoagulated blood is ventrifuged ____ goes to the top of the tube.
- A.
White blood cells
- B.
Red blood cells
- C.
Plasma
- D.
Water
- 33.When anticoagulated blood is centrifuged ____ goes from the bottom of the tube.
- A.
Red blood cells
- B.
White blood cells
- C.
Plasma
- D.
Water
- 34.When collecting blood by skin puncture on an infant, you should use a _______.
- A.
25 ga needle
- B.
Lancet
- C.
Scalpel
- D.
23 ga needle
- 35.The tube usd to collect a blood sample for a complete blood count (CBC) is _____.
- A.
Red top - no additive
- B.
Blue top- sodium cirate additive
- C.
Lavender top - ethylenediaminetetraacetic acid additive
- D.
Green top - lithium heparin additive
- 36.Which of these lab tests monitor anticoagulation therapy?
- A.
PT and PTT
- B.
T3 and T4
- C.
Hb and Hct
- D.
ABO and Rh
- 37.Which tube would be drawn first?
- A.
Red
- B.
Lavender
- C.
Grey
- D.
Green
- 38.Making sure that a tube is correctly labeled with the patients complete name and identification number is part of the facilities ____ plan
- A.
Exposure control
- B.
Incident report
- C.
Quality control
- D.
All choices
- 39.When performing a venipuncture if no blood flows into the tube how would you correct this situation?
- A.
Gently insert the needle a little deeper
- B.
Gently pull the needle out just a little
- C.
Remove the needle and tourniquet and prepare another site
- D.
All choices could be correct
- 40.If during a venipuncture a patient has a syncopal episode what would be your best course of action?
- A.
Continue to draw, you need the specimen
- B.
Remove the needle and tourniquet and lower the patients head and arms
- C.
Begin CPR and activate 911
- D.
Restrain the patient to keep the patient from causing bodily injury
- 41.The most important appropriate site for performing a capillary puncture in a healthy adult is the _____.
- A.
Great toe
- B.
Earlobes
- C.
Fingers
- D.
Forearms
- 42.It is very important when performing a capillary stick to do which of the following
- A.
Wipe away the first drop of blood
- B.
Forcefully make a puncture
- C.
Not use alcohol to clean site
- D.
It is very important to do all of the above
- 43.Performing a ____ as part of a complete blood count (CBC) determines the ratio of volume packed red blood cells to that of whole blood.
- A.
Differential
- B.
Hematocrit
- C.
Hemoglobin
- D.
Glucose
- 44.____ values are increased in infections and inflammatory disease.
- A.
Glucose
- B.
Hematocrit
- C.
Erythrocyte sedimentation rates
- D.
Coagulation studies
- 45.What type of blood sample will be needed to perform a hemoglobin test?
- A.
EDTA added
- B.
Serum only
- C.
White blood cells
- D.
No correct answer
- 46.How many hematocrit tubes should be collected from the patient?
- A.
1
- B.
2
- C.
3
- D.
5
- 47.What type of blood sample is needed when performing a PKU?
- A.
Venipuncture
- B.
Capillary
- C.
Either one is acceptable
- D.
No answer is correct
- 48.A _____ is a small, sterile, needle like piece of metal used to make small punctures in the derms.
- A.
Scarificator
- B.
Fleam
- C.
Lancet
- D.
Cup
- 49.In drug testing the ___ regulates describe how evidence is to the collected and handled.
- A.
Chain of command
- B.
Chain of custody
- C.
Person in charge
- D.
Local law enforcement
- 50.A(n) ____ requires the patient to be fasting and then blood is taken every hour for a predetermined time.
- A.
Cholesterol test
- B.
White blood cell count
- C.
Differential
- D.
Glucose tolerance test
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