NAPLEX USP 800 Practice Questions with Answers

Mastering USP Chapter 800 is essential for any pharmacist, as it establishes the standards for handling hazardous drugs (HDs) to promote patient safety, worker safety, and environmental protection. This article provides a comprehensive review and NAPLEX USP 800 practice questions to help you prepare for the compounding and safety portions of your licensing exam. By integrating these concepts with clinical knowledge, such as that found in Hard NAPLEX Oncology Therapeutics Practice Questions, you can ensure a well-rounded study plan.

Concept Explanation

USP Chapter 800 provides standards for the safe handling of hazardous drugs (HDs) to minimize the risk of exposure to healthcare personnel, patients, and the environment. Hazardous drugs are identified by the National Institute for Occupational Safety and Health (NIOSH) based on criteria such as carcinogenicity, teratogenicity, reproductive toxicity, organ toxicity at low doses, and genotoxicity. Unlike USP 795 and 797, which focus primarily on the integrity of the preparation, USP 800 focuses on the safety of the person handling the drug. Key requirements include the use of specific engineering controls—such as Biological Safety Cabinets (BSCs) or Compounding Aseptic Containment Isolators (CACIs)—negative pressure rooms, and mandatory Personal Protective Equipment (PPE) including double chemotherapy-rated gloves and respiratory protection when necessary.

For students looking to organize their study schedule effectively, the AI MasterPlan can help allocate time between regulatory standards like USP 800 and clinical topics like NAPLEX Infectious Disease Practice Questions. Understanding the "Containment Secondary Engineering Control" (C-SEC) and "Containment Primary Engineering Control" (C-PEC) is vital for passing the NAPLEX Prep curriculum.

Solved Examples

1. Example: Negative Pressure Requirements
   A pharmacy is designing a new cleanroom for hazardous sterile compounding. According to USP 800, what is the required pressure relationship for the C-SEC compared to adjacent areas?
   Solution:
   1. Identify the requirement for hazardous drug storage and compounding areas.
   2. USP 800 requires these areas to be maintained at a negative pressure.
   3. The specific requirement is a negative pressure between $0.01$ and $0.03$ inches of water column relative to adjacent areas.
2. Example: PPE for Administration
   A nurse is preparing to administer an intact chemotherapy tablet to a patient. What PPE is required under USP 800 standards?
   Solution:
   1. Determine the formulation: Intact tablet (not being crushed or manipulated).
   2. Review the USP 800 table for PPE during administration.
   3. For administration of hazardous drugs, at least one pair of chemotherapy-rated gloves is required. If manipulation (crushing) were involved, double gloves and a gown would be necessary.
3. Example: Deactivation and Decontamination
   What is the correct sequence of steps for cleaning a C-PEC used for hazardous compounding?
   Solution:
   1. Step 1: Deactivation (e.g., using sodium hypochlorite) to render the compound inactive.
   2. Step 2: Decontamination (removal of residue).
   3. Step 3: Cleaning (removal of dirt/microbes).
   4. Step 4: Disinfection (using $70\%$ Sterile Isopropyl Alcohol) to achieve the required sterility for the environment.

Practice Questions

1. Which organization is responsible for maintaining the list of hazardous drugs that fall under the scope of USP 800?
2. A pharmacy technician is compounding a sterile hazardous preparation. How often must the chemotherapy-rated gloves be changed during this process?
3. What is the minimum number of Air Changes Per Hour (ACPH) required for a buffer room used for sterile hazardous drug compounding?

4. According to USP 800, which type of C-PEC is acceptable for compounding hazardous sterile products?
5. A spill occurs involving 30 mL of a liquid hazardous drug. Who should handle the cleanup of this spill?
6. Can hazardous drugs that do not require further manipulation be stored with other non-hazardous inventory?
7. When using a C-PEC for sterile hazardous compounding, where must the C-PEC be physically located?
8. Which type of respirator is required for personnel cleaning up a large hazardous drug spill?
9. What is the requirement for the outer pair of chemotherapy gloves when compounding sterile hazardous drugs?
10. How often must personnel who handle hazardous drugs undergo competency assessment?

Answers & Explanations

1. NIOSH (National Institute for Occupational Safety and Health). While USP sets the standards for handling, NIOSH defines which drugs are considered hazardous.
2. Every 30 minutes. Gloves should also be changed if they are torn, punctured, or significantly contaminated.
3. 30 ACPH. This high rate of air exchange is necessary to clear the air of any potential contaminants or vapors.
4. Class II or III Biological Safety Cabinet (BSC) or CACI. Horizontal laminar airflow workbenches are strictly prohibited because they blow air (and potential toxins) directly at the operator.
5. Personnel trained in spill management. Only individuals who have received specific training and have access to a spill kit should manage the cleanup.
6. Yes, if permitted by the entity's policy. However, they must be clearly labeled as hazardous. Note that HDs requiring manipulation (compounding) must be stored separately in a negative pressure room.
7. In an ISO Class 7 buffer room that is physically separated from other preparation areas and maintained under negative pressure.
8. A fit-tested NIOSH-certified N95 or higher is for particulates; however, for large spills or vapors, a full-face chemical cartridge-type respirator or a Powered Air-Purifying Respirator (PAPR) may be required.
9. The outer glove must be sterile and worn over the inner glove (which is tucked under the gown cuff). The outer glove cuff goes over the gown cuff.
10. At least every 12 months. Documentation of training and competency is a strict requirement for compliance.

1. Which of the following is a requirement for a chemotherapy gown used under USP 800?

• AMust be made of cotton for breathability
• BMust close in the front for easy removal
• CMust be changed every 8 hours if no manufacturer data is available
• DMust be lint-free and non-permeable

Frequently Asked Questions

What are the primary differences between USP 797 and USP 800?

USP 797 focuses on the sterility and quality of the compounded sterile preparation to protect the patient from infection. USP 800 focuses on protecting healthcare workers and the environment from the toxic effects of hazardous drugs during the entire lifecycle of the drug.

Do I need to wear two pairs of gloves when administering chemotherapy?

According to USP 800, two pairs of chemotherapy-rated gloves are required when administering injectable hazardous drugs. For oral hazardous drugs that are intact, a single pair of chemotherapy gloves is generally sufficient unless otherwise specified by the institution's assessment of risk.

Can I use a standard laminar flow hood for hazardous compounding?

No, standard horizontal laminar flow hoods (LAFWs) provide product protection but blow air toward the pharmacist, increasing exposure risk. Hazardous compounding requires a containment primary engineering control (C-PEC) like a BSC that provides inward airflow to protect the operator.

What is an Assessment of Risk (AoR) under USP 800?

An Assessment of Risk allows an entity to exempt certain hazardous drugs (typically those in final dosage forms like tablets) from some USP 800 requirements, provided they document alternative handling strategies to ensure safety. This cannot be applied to hazardous drug active pharmaceutical ingredients (APIs).

How is bulk hazardous waste distinguished from trace waste?

Bulk hazardous waste includes items with visible residue or partially full vials and must be disposed of in black containers. Trace waste includes "empty" vials, needles, and PPE used during compounding, which are typically disposed of in yellow containers.

How often should the C-PEC be running?

The C-PEC must operate continuously if it provides any of the negative pressure or air changes for the C-SEC. If it is turned off for any reason, it must be thoroughly decontaminated and cleaned before being used again for compounding.