NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What ISO class air is provided by a sterile hood in a PEC?

ISO class 3
ISO class 5
ISO class 7
ISO class 9

The correct answer is: ISO class 5

Sterile hoods, also known as laminar flow hoods or biological safety cabinets, typically provide ISO class 5 air. This means that the air inside the sterile hood meets the requirements for less than 3,520 particles of 0.5 microns or larger per cubic meter of air. This level of air cleanliness is crucial when working in aseptic environments to prevent contamination of sterile products. Options A, C, and D are not correct because they represent air cleanliness levels that are higher (less clean) than ISO class 5. It is important to remember that in a sterile compounding setting, maintaining the appropriate air quality within the sterile hood is essential to ensure the safety and efficacy of compounded medications.