Sterile Formulations Quiz – Test Your Aseptic Skills

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  • 1/65 Questions

    The sum of the atomic weights of a molecule

    • Valence
    • Isotonic
    • Molecular weight
    • SQ
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About This Quiz

Sterile formulations are critical in preventing contamination and ensuring patient safety—but even the smallest mistake can lead to serious consequences.

This Sterile Formulations Quiz – Aseptic Techniques & Safety tests your understanding of cleanroom standards, parenteral preparation, laminar airflow hoods, and USP <797> guidelines. Ideal for pharmacy students, technicians, or healthcare professionals, it reinforces both theory and practice in sterile compounding.

Use this quiz to check your skills, catch knowledge gaps, and boost your confidence in clinical settings.

Disclaimer: This quiz is for educational review only and does not replace hands-on aseptic training or official certification requirements.

Sterile Formulations Quiz Test Your Aseptic Skills - Quiz

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  • 2. 

    Methods that maintain sterility products

    • Aseptic technique

    • Bleaching

    • A clean person

    • Admixture

    Correct Answer
    A. Aseptic technique
    Explanation
    The correct answer is aseptic technique. Aseptic technique refers to a set of practices and procedures used to prevent contamination and maintain sterility in the handling and preparation of products. It involves using sterile equipment, following strict hygiene practices, and creating a controlled environment to minimize the risk of introducing microorganisms. By employing aseptic technique, healthcare professionals can ensure the safety and effectiveness of medical procedures and the products they use.

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  • 3. 

    A laminar flow hood where the air crosses the work area in a veritical direction

    • Horizontal flow hood

    • Vertical flow hood

    • Laminar hood

    • Biological Safety Cabinet

    Correct Answer
    A. Vertical flow hood
    Explanation
    A vertical flow hood is a type of laminar flow hood where the air crosses the work area in a vertical direction. This means that the air flows from the top of the hood down towards the work surface, providing a clean and sterile environment for working with sensitive materials. This type of flow hood is commonly used in laboratories and cleanrooms to prevent contamination and ensure the safety of the personnel and the materials being handled.

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  • 4. 

    Incompatibilities between a drug and a base IV fluid are evident when_____ is observed

    • A precipitate

    • Gas evolution

    • A color change

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Incompatibilities between a drug and a base IV fluid can be identified when any of the following are observed: a precipitate, gas evolution, or a color change. These indicators suggest that there is a chemical reaction occurring between the drug and the IV fluid, which can affect the stability and efficacy of the medication. Therefore, all of the above options are correct in identifying the incompatibilities between the drug and the base IV fluid.

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  • 5. 

    A compounded sterile parenteral dosage form that will be parenterally administered.

    • Coring

    • Depth filter

    • Compounded sterile preparation (CSP)

    • Gauge

    Correct Answer
    A. Compounded sterile preparation (CSP)
    Explanation
    A compounded sterile preparation (CSP) refers to a dosage form that is prepared in a sterile environment and is intended to be administered parenterally, meaning it is injected into the body. This term is used to describe medications that are prepared by a pharmacist or other healthcare professional in a sterile compounding facility. The term "compounded" indicates that the medication is customized or tailored to meet the specific needs of an individual patient. The term "sterile" indicates that the medication is free from any microorganisms that could cause infection. Therefore, a compounded sterile preparation (CSP) is the correct answer as it best describes a dosage form that is both sterile and intended for parenteral administration.

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  • 6. 

    The purpose of USP/NF 797 is the prevent harm and fatality to patients that can result from

    • Nonsterile formulation

    • Excessive bacterial endotoxins

    • Large errors in the strengtht of correct ingredients

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    USP/NF 797 is a set of guidelines and standards that aim to prevent harm and fatalities to patients. It addresses various factors that can lead to patient harm, including nonsterile formulation, excessive bacterial endotoxins, and large errors in the strength of correct ingredients. By ensuring that medications are sterile, free from harmful bacteria, and accurately formulated, USP/NF 797 helps to safeguard the health and well-being of patients.

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  • 7. 

    Aseptic techniques are methods used to maintain

    • PH

    • Sterility of sterile products

    • Osmotic pressure

    • Pyrogens

    Correct Answer
    A. Sterility of sterile products
    Explanation
    Aseptic techniques are methods used to maintain the sterility of sterile products. This means that these techniques are used to prevent the introduction of any microorganisms or contaminants into the products during their preparation or handling. By following aseptic techniques, healthcare professionals can ensure that the products remain free from any bacteria, viruses, or fungi that could potentially cause infections or other adverse effects when administered to patients. Therefore, maintaining the sterility of sterile products is the main purpose of aseptic techniques.

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  • 8. 

    A high efficiency air filter

    • HEPA filter

    • Diluent

    • Final filter

    • Web filter

    Correct Answer
    A. HEPA filter
    Explanation
    A HEPA filter is a high efficiency air filter that is commonly used in various settings to remove a wide range of particles from the air. It is designed to capture particles as small as 0.3 microns with an efficiency of 99.97%. HEPA filters are commonly used in air purifiers, vacuum cleaners, and HVAC systems to improve indoor air quality by removing allergens, dust, pet dander, and other pollutants. They are considered to be one of the most effective types of air filters available in terms of particle removal efficiency.

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  • 9. 

    Without water molecules

    • Gauge

    • Anhydrous

    • Sq

    • Bevel

    Correct Answer
    A. Anhydrous
    Explanation
    Anhydrous means without water molecules. In the context of the given question, anhydrous is the correct answer because it directly relates to the absence of water molecules. It is a term commonly used in chemistry to describe substances that do not contain water.

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  • 10. 

    Molecular particles that carry electric charges

    • Ions

    • Isotonic

    • Hypotonic

    • Lyophilized

    Correct Answer
    A. Ions
    Explanation
    Ions are molecular particles that carry electric charges. They are formed when an atom gains or loses electrons, resulting in a positive or negative charge. This property allows ions to participate in chemical reactions and carry electrical current. In contrast, isotonic refers to a solution with the same concentration as the surrounding environment, hypotonic refers to a solution with a lower concentration than the surrounding environment, and lyophilized refers to a process of freeze-drying a substance.

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  • 11. 

    The rate (in ml/hour or ml/minute) at which the solution is administered to the patient.

    • Gauge

    • Coring

    • Diluent

    • Flow rate

    Correct Answer
    A. Flow rate
    Explanation
    The term "flow rate" refers to the rate at which a solution is administered to a patient, usually measured in milliliters per hour or milliliters per minute. It indicates how quickly the solution is being delivered into the patient's bloodstream. This is an important parameter to monitor during medical treatments, as it ensures that the correct amount of medication or fluid is being delivered at a safe and appropriate speed.

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  • 12. 

    When a solution has a lesser osmolarity than that of blood

    • Hypotonic

    • Hypertonic

    • Isotonic

    • Tonic

    Correct Answer
    A. Hypotonic
    Explanation
    A solution that has a lesser osmolarity than that of blood is considered hypotonic. In a hypotonic solution, there is a lower concentration of solutes compared to blood. This causes water to move into the cells through osmosis, resulting in the cells swelling or potentially bursting.

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  • 13. 

    Pyrogens

    • Grow in parenteral solutions

    • Are not water soluble

    • Produce fever

    • Can be removed by filtration

    Correct Answer
    A. Produce fever
    Explanation
    Pyrogens are substances that can induce fever in the body. They are typically produced by bacteria, viruses, or other microorganisms. When pyrogens enter the body, they stimulate the release of certain chemicals that raise the body's temperature, resulting in fever. Pyrogens are not water soluble, meaning they do not dissolve in water. They can also be present in parenteral solutions, which are solutions administered directly into the bloodstream. Additionally, pyrogens can be removed from solutions through filtration processes.

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  • 14. 

    A drugs molecular weight divided by its valence, a common measure of electrolyte concertation.

    • Coring

    • Valence

    • Flow rate

    • Equivalent weight

    Correct Answer
    A. Equivalent weight
    Explanation
    Equivalent weight is a measure of the mass of a substance that can react with or replace one mole of hydrogen ions or one mole of electrons. It is calculated by dividing the molecular weight of a compound by its valence. This value is used to determine the concentration of electrolytes in a solution. By knowing the equivalent weight, one can calculate the amount of substance required to complete a chemical reaction or to achieve a specific concentration in a solution.

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  • 15. 

    Chemicals produced by microorganisms that can cause fever reactions in patients

    • Bacteria

    • Viuruses

    • Pyrogens

    • Microorganisms

    Correct Answer
    A. Pyrogens
    Explanation
    Pyrogens are chemicals produced by microorganisms that can cause fever reactions in patients. These substances stimulate the body to raise its temperature, leading to fever. Bacteria and viruses are types of microorganisms, but not all microorganisms produce pyrogens. Therefore, the correct answer is pyrogens.

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  • 16. 

    When a solution has an osmolarity equivalent to that of blood

    • Hypotonic

    • Isotonic

    • Hypertoni

    • Therapeutic

    Correct Answer
    A. Isotonic
    Explanation
    An isotonic solution has the same osmolarity as blood, which means it has the same concentration of solutes as blood. This is important because when a solution is isotonic, it does not cause water to move into or out of cells. It maintains the balance of fluids inside and outside of cells, preventing them from swelling or shrinking. This is why an isotonic solution is often used in medical settings, such as for intravenous fluid replacement, to ensure that it is compatible with the body's cells and does not cause any adverse effects.

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  • 17. 

    When a solution has a greater osmolarity than that of blood

    • Osmotic pressure

    • Osmosis

    • Hypertonic

    • Isotonic

    Correct Answer
    A. Hypertonic
    Explanation
    A solution is considered hypertonic when it has a greater osmolarity than that of blood. Osmolarity refers to the concentration of solute particles in a solution. When a hypertonic solution is introduced, it creates a higher osmotic pressure compared to blood. This difference in osmotic pressure causes water molecules to move out of the blood cells through osmosis, resulting in cell shrinkage or dehydration.

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  • 18. 

    Freeze dried

    • Valence

    • Irrigation solution

    • Lyophilized

    • Pyrogen

    Correct Answer
    A. Lyophilized
    Explanation
    Lyophilized refers to a process of freeze-drying a substance, typically a pharmaceutical or biological product, to remove the water content and preserve it in a stable and solid form. This technique involves freezing the substance and then subjecting it to a vacuum, causing the frozen water to sublimate directly from solid to gas, leaving behind a dry and powdery product. Therefore, the term "lyophilized" is the most appropriate and relevant choice among the given options.

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  • 19. 

    The resulting solution when a drug is added to a parenteral solution

    • Admixture

    • Solution

    • Addtive

    • Juice

    Correct Answer
    A. Admixture
    Explanation
    An admixture refers to the resulting solution when a drug is added to a parenteral solution. This term is commonly used in pharmaceuticals to describe the combination of a drug with a liquid solution that is administered through injection or infusion. The addition of the drug alters the composition of the parenteral solution, creating a new mixture that is suitable for administration.

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  • 20. 

    A drug that is added to a parenteral solution

    • Admixture

    • Admixture

    • Dialysis

    • Flashball

    Correct Answer
    A. Admixture
    Explanation
    An admixture refers to a drug that is added to a parenteral solution. Parenteral solutions are administered through routes other than the digestive tract, such as intravenous or intramuscular injection. The term "admixture" specifically refers to the act of adding a drug to a parenteral solution, typically to create a specific medication or treatment.

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  • 21. 

    Large volume splash solutions used during surgical or urologic procedures to bathe and moisten body tissues.

    • Isotonic

    • Osmotic pressure

    • Irrigation solution

    • Osmosis

    Correct Answer
    A. Irrigation solution
    Explanation
    An irrigation solution is a large volume splash solution used during surgical or urologic procedures to bathe and moisten body tissues. It helps to clean and flush out the area being operated on, removing debris and preventing infection. This solution is typically isotonic, meaning it has the same concentration of solutes as the body's cells, to avoid any adverse effects on the tissues. Osmotic pressure and osmosis are not directly related to the concept of an irrigation solution.

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  • 22. 

    A speicially designed minibag where a drug is put into the SVP fluid just prior to administration

    • Ready-to-mix

    • Admixture

    • TPN

    • TNA

    Correct Answer
    A. Ready-to-mix
    Explanation
    A ready-to-mix solution refers to a specially designed minibag where a drug is added to a small volume parenteral (SVP) fluid just before it is administered. This allows for easy and convenient preparation of the drug, ensuring that it is mixed accurately and ready for immediate use. This method reduces the risk of errors in drug preparation and improves efficiency in healthcare settings.

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  • 23. 

    A laminar flow hood where the ari crosses the work area in a horizontal direction

    • Veritical hood

    • Laminar hood

    • Hepa

    • Horizontal flow hood

    Correct Answer
    A. Horizontal flow hood
    Explanation
    A horizontal flow hood is the correct answer because it describes a laminar flow hood where the air crosses the work area in a horizontal direction. This type of hood is designed to provide a clean and sterile work environment by directing the airflow in a specific direction to prevent contamination. The horizontal flow hood is commonly used in laboratories and healthcare settings to protect the samples or products being worked with.

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  • 24. 

    With  laminar flow, the air moves in _______ direction

    • Four

    • Three

    • Two

    • One

    Correct Answer
    A. One
    Explanation
    In laminar flow, the air moves in one direction. This means that the air flows smoothly and in parallel layers, with no mixing or turbulence. Laminar flow is characterized by a steady and uniform flow pattern, where the air particles move in a straight line along the same path. This is in contrast to turbulent flow, where the air moves in multiple directions and causes mixing and irregular flow patterns. Therefore, the correct answer is one, indicating that in laminar flow, the air moves in a single, consistent direction.

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  • 25. 

    When opening an ampule, snap the ampule neck

    • Toward the HEPA filter

    • Away from the HEPA filter but toward sterile supplies that have been swabbed with an alcohol pad

    • Toward the HEPA filter but away from sterile supplies that have not been swabbed with an alcohol pad

    • Away from the HEPA filter or any other sterile supplies

    Correct Answer
    A. Away from the HEPA filter or any other sterile supplies
    Explanation
    When opening an ampule, it is important to snap the ampule neck away from the HEPA filter or any other sterile supplies. This is because snapping the ampule neck towards the HEPA filter or sterile supplies could potentially contaminate them. By snapping the ampule neck away from these items, the risk of contamination is minimized, ensuring the integrity of the sterile environment.

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  • 26. 

    Different types of syringe tips

    • Piggy backs

    • Sharps

    • Guage

    • Slip-Tip, Luer-Lok, eccentric, oral ____

    Correct Answer
    A. Slip-Tip, Luer-Lok, eccentric, oral ____
  • 27. 

    Add-a-vial, Add-Vantage system, and the Mini-Bag Plus system are exmples of

    • Prefilled syringe systems

    • Multiple dose glass vial systems

    • Ready-to-mix systems

    • Dry powder for constitution systems

    Correct Answer
    A. Ready-to-mix systems
    Explanation
    The given examples, add-a-vial, Add-Vantage system, and the Mini-Bag Plus system, are all related to ready-to-mix systems. Ready-to-mix systems are designed to simplify the process of medication preparation by providing pre-measured components that can be easily mixed together. These systems typically include a container or bag containing a diluent or solvent, and a separate vial or compartment containing the medication. The user simply needs to connect the two components and mix them together, eliminating the need for manual measurement or mixing of multiple components.

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  • 28. 

    Sealed glass containers with an elongated neck

    • Gauge

    • Ampules

    • CSP

    • Vial

    Correct Answer
    A. Ampules
    Explanation
    Ampules are sealed glass containers with an elongated neck. They are commonly used in the pharmaceutical industry to store and preserve medications or other substances. Ampules are designed to be airtight and provide a secure and sterile environment for the contents inside. Unlike vials, which typically have a rubber stopper or a screw cap, ampules are sealed by melting the glass neck after filling. This ensures that the contents remain uncontaminated and protected from external factors such as air or moisture.

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  • 29. 

    When a needle damages the rubber closure of a parenteral container causing fragments to fall into  the container

    • Coring

    • Syringe ability

    • Final filter

    • Bevel

    Correct Answer
    A. Coring
    Explanation
    Coring refers to the situation when a needle damages the rubber closure of a parenteral container, causing fragments to fall into the container. This can occur when the needle pierces the rubber closure and instead of creating a clean hole, it removes a small piece of rubber, which then falls into the container. This can be a concern as the rubber fragments can contaminate the contents of the container, potentially leading to adverse effects when administered to patients. Therefore, coring is an important consideration in maintaining the integrity and safety of parenteral containers.

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  • 30. 

    Continuous movement at a uniform rate in one direction

    • Horizontal flow

    • Veritical flow

    • Laminar flow

    • BSC

    Correct Answer
    A. Laminar flow
    Explanation
    Laminar flow refers to the smooth and continuous movement of a fluid in a straight line, with layers of the fluid flowing parallel to each other. In this type of flow, there is minimal mixing or turbulence, and the fluid particles move at a uniform rate. The term "laminar" comes from the Latin word "lamina," which means layer, indicating the organized and ordered movement of the fluid. Therefore, the given answer of "laminar flow" accurately describes the concept of continuous movement at a uniform rate in one direction.

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  • 31. 

    Visual inspection of parenteral solutions can show the presence of ___ and ___.

    • Particle contamination, precipitation

    • PH, precipitation

    • Chemical degradation of a drug, osmolarity

    • Pyrogens, precipitation

    Correct Answer
    A. Particle contamination, precipitation
    Explanation
    Visual inspection of parenteral solutions can show the presence of particle contamination and precipitation. This means that by visually examining the solution, one can identify if there are any particles present in the solution that should not be there, as well as if there is any precipitation or solid material forming in the solution. This is important as particle contamination and precipitation can indicate potential issues with the solution's quality, stability, and safety for administration.

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  • 32. 

    Small volume soltuions connected to an LVP

    • Pyrogens

    • Piggybacks

    • Hypotonic

    • SVP

    Correct Answer
    A. Piggybacks
    Explanation
    The given answer "piggybacks" is the most suitable explanation for the given terms. "Piggybacks" refers to small volume solutions that are connected to a larger volume parenteral (LVP) container. This term is commonly used in the medical field to describe the practice of administering additional medications or fluids through a secondary IV line attached to the primary IV line. Therefore, "piggybacks" accurately describes the concept of small volume solutions connected to an LVP.

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  • 33. 

    Peristaltic, cassette, and elastomeric pumps are examples of

    • Auto mixers

    • Positives pressure pumps

    • Controllers

    • Administration sets

    Correct Answer
    A. Positives pressure pumps
    Explanation
    Peristaltic, cassette, and elastomeric pumps are examples of positive pressure pumps because they all generate pressure to push fluids through a system. Peristaltic pumps use rotating rollers to compress a flexible tube and create pressure, cassette pumps use a disposable cassette system to generate pressure, and elastomeric pumps use an expandable reservoir to generate pressure. These pumps are commonly used in medical and industrial applications where precise fluid delivery is required.

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  • 34. 

    A needle measurement

    • Ampules

    • Bevel

    • Heparin lock

    • Gauge

    Correct Answer
    A. Gauge
    Explanation
    The term "gauge" refers to the measurement of the diameter of a needle. In medical settings, different gauge sizes are used for different purposes. A smaller gauge indicates a larger diameter needle, while a larger gauge indicates a smaller diameter needle. The gauge of a needle is important as it determines the flow rate of fluids and the level of discomfort experienced by the patient. Therefore, understanding the gauge of a needle is crucial for healthcare professionals to ensure safe and effective procedures.

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  • 35. 

    Any object that can puncture or cut the skin of anyone who handles them

    • Sharps

    • Bevel

    • Coring

    • Cut

    Correct Answer
    A. Sharps
    Explanation
    The term "sharps" refers to any object that has the potential to puncture or cut the skin of anyone who handles them. This includes items such as needles, scalpels, broken glass, or any other sharp object that poses a risk of injury. The term "sharps" is commonly used in medical settings to refer to objects that need to be handled with caution and disposed of properly to prevent the spread of infections.

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  • 36. 

    Water molecules that attach to drug molecules

    • Waters of hydration

    • Hyptonic

    • Aq

    • Solution

    Correct Answer
    A. Waters of hydration
    Explanation
    The term "waters of hydration" refers to water molecules that are attached to drug molecules. In a solution, these water molecules surround and interact with the drug molecules, forming a hydration shell. This phenomenon is important in pharmacology as it can affect the solubility, stability, and bioavailability of drugs. The term "hypotonic" refers to a solution with a lower concentration of solutes compared to another solution. "Aq" is the chemical symbol for an aqueous solution, which means it is a solution in which water is the solvent.

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  • 37. 

    Multidose vials

    • Can be reused within 48 hours if refrigerated

    • Can be reused within 24 yours if refrigerated

    • Do not contain preservatives

    • Contain preservatives

    Correct Answer
    A. Contain preservatives
    Explanation
    Multidose vials contain preservatives. Preservatives are added to prevent the growth of bacteria or other microorganisms in the vial, which could contaminate the medication. This allows the vial to be reused within a certain time frame, as long as it is refrigerated. The presence of preservatives ensures the safety and efficacy of the medication when it is used again within the specified time period.

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  • 38. 

    When using the laminar flow hood, a technician should work inside the hood at least

    • Two inches

    • Four inches

    • Six inches

    • Eight inches

    Correct Answer
    A. Six inches
    Explanation
    When using a laminar flow hood, it is recommended for a technician to work inside the hood at least six inches. This distance helps to maintain a clean and sterile environment by minimizing the risk of contamination from the technician's body or breath. Working at a distance of six inches allows for proper airflow and reduces the chances of particles or microorganisms from the technician's body interfering with the sterile work area.

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  • 39. 

    Which part of an administration set is used to set the flow rate

    • Spike

    • Volume control chamber

    • Flashball

    • Needle adapter

    Correct Answer
    A. Volume control chamber
    Explanation
    The volume control chamber is the part of an administration set that is used to set the flow rate. It allows for the adjustment of the amount of fluid being delivered to the patient by controlling the volume of the chamber. By increasing or decreasing the size of the chamber, the flow rate can be adjusted accordingly. The spike is used to puncture the fluid container, the flashball is used to prevent air from entering the system, and the needle adapter is used to connect the administration set to the patient's IV catheter.

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  • 40. 

    The action in which a drug in a higher concentration solution passes through a permeable membrane to a lower concentration solution

    • Osmosis

    • Membrane filiter

    • Isotonic

    • Final filter

    Correct Answer
    A. Osmosis
    Explanation
    Osmosis is the correct answer because it refers to the process in which a drug, or any solute, moves from a higher concentration solution to a lower concentration solution through a permeable membrane. This movement occurs due to the natural tendency of solutes to equalize their concentrations on both sides of the membrane. Osmosis is a vital process in biological systems, as it helps maintain the balance of water and solutes within cells and across cell membranes.

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  • 41. 

    A solution placed in and emptied from the peritoneal cavity to remove toxic substances

    • Irrigation solution

    • Peritoneal dialysis solution

    • Solutions

    • Sterile solution

    Correct Answer
    A. Peritoneal dialysis solution
    Explanation
    A peritoneal dialysis solution is a solution that is placed in and emptied from the peritoneal cavity to remove toxic substances. This solution is used in the process of peritoneal dialysis, which is a type of dialysis that involves using the peritoneum (a membrane in the abdomen) as a filter to remove waste and excess fluid from the body. The peritoneal dialysis solution helps to facilitate this process by allowing for the exchange of waste and fluid between the peritoneal cavity and the solution.

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  • 42. 

    If a laminar flow hood is turned off between aseptic procession sessions, how long should it run before it is used again?

    • Does not matter

    • At least 15 minutes

    • At least 30 minutes

    • It should never be turned off

    Correct Answer
    A. At least 30 minutes
    Explanation
    The laminar flow hood should run for at least 30 minutes before it is used again. This is because turning off the hood disrupts the airflow and can lead to the accumulation of contaminants. By allowing the hood to run for at least 30 minutes, any potential contaminants in the air can be cleared out, ensuring a clean and sterile environment for aseptic processing.

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  • 43. 

    A TPN sol. that contains intravenous fat emulsion

    • TNA

    • TPA

    • SAT

    • ACT

    Correct Answer
    A. TNA
    Explanation
    TNA stands for Total Nutrient Admixture, which is a type of Total Parenteral Nutrition (TPN) solution that contains intravenous fat emulsion. TNA is used to provide essential nutrients to patients who are unable to receive nutrition through oral or enteral routes. The fat emulsion in TNA helps to supply calories and essential fatty acids to the patient. This solution is typically administered through a central venous catheter and is carefully monitored to ensure proper nutrition and prevent complications.

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  • 44. 

    A characteristic of a solution determined by the number of dissolved particles in it

    • Osmosis

    • Osmosis pressure

    • Valence

    • Sharps

    Correct Answer
    A. Osmosis pressure
    Explanation
    Osmosis pressure is a characteristic of a solution determined by the number of dissolved particles in it. Osmosis is the movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semipermeable membrane. The pressure exerted by this movement is known as osmosis pressure. It is directly related to the number of dissolved particles in the solution, as the more particles present, the higher the osmosis pressure will be.

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  • 45. 

    An injection device used when a primary LVP solution is not a drug available.

    • Heparin lock

    • Bevel

    • Final filter

    • Ampules

    Correct Answer
    A. Heparin lock
    Explanation
    A heparin lock is an injection device used when a primary large volume parenteral (LVP) solution is not available. It is typically used to maintain venous access and prevent blood clotting in intravenous lines when a patient does not require continuous infusion of fluids or medications. This device contains a small amount of heparin, which is a blood thinner, and is flushed into the line to prevent clotting. It allows intermittent access to the patient's vein without the need for continuous infusion.

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  • 46. 

    The hollow center of a needle

    • Tunnel

    • Barrel

    • Lumen

    • Valence

    Correct Answer
    A. Lumen
    Explanation
    The correct answer is lumen. A lumen refers to the hollow center of a needle or a tube. It is the inner space through which substances can pass. In the context of a needle, the lumen allows for the passage of fluids or medication.

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  • 47. 

    A solvent that dissolves a lyophilized powder or dilutes a solution

    • Diluent

    • Solvent

    • Additive

    • Admixture

    Correct Answer
    A. Diluent
    Explanation
    A diluent is a substance that is used to dilute a lyophilized powder or a solution. It helps to increase the volume of the substance without significantly affecting its properties. By adding a diluent, the concentration of the substance can be reduced, making it easier to handle or administer. A diluent is typically a solvent that is compatible with the substance being diluted and does not react or interfere with its intended use.

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  • 48. 

    Which concentration term used with parenteral solutions does not use the drugs molecular weight to determine its value

    • Molarity

    • Osmoles

    • Equivalents

    • Percentage weight per volume

    Correct Answer
    A. Percentage weight per volume
    Explanation
    The concentration term "percentage weight per volume" does not use the drug's molecular weight to determine its value. Instead, it is calculated by dividing the weight of the drug in a given volume of solution by the total volume of the solution. This concentration term is commonly used in pharmacy and medicine to express the concentration of drugs in solutions, particularly in intravenous or parenteral administration.

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  • 49. 

    The horizontal laminar flow hoods, air blows

    • Down toward the work area

    • Away from the operator

    • Toward the operator

    • Up toward the HEPA filter

    Correct Answer
    A. Toward the operator
    Explanation
    In horizontal laminar flow hoods, the air blows toward the operator. This is because the purpose of these hoods is to provide a clean and sterile work area for the operator. By blowing the air toward the operator, any potential contaminants or particles that may be present in the air are directed away from the work area, ensuring that the operator is protected and the work being done remains uncontaminated. The air is then filtered through the HEPA filter, further purifying it before being recirculated.

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Quiz Review Timeline (Updated): Jun 24, 2025 +

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  • Jun 24, 2025
    Quiz Edited by
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  • Jan 06, 2017
    Quiz Created by
    Spectrumacd
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