NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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The air quality in a Secondary Engineering Control (SEC) for sterile preparations should be:

  1. ISO class 3

  2. ISO class 5

  3. ISO class 7

  4. ISO class 9

The correct answer is: ISO class 7

The air quality in a Secondary Engineering Control (SEC) for sterile preparations should be ISO class 7. ISO class 3 is too stringent and not necessary for this level of control. ISO class 5 and 9 are not strict enough and may compromise the sterile environment. ISO class 7 provides an appropriate level of air quality for the preparation of sterile products.

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