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Chapter 75. Sterile Compounding Regulations and Best Practices for Sterile Compounding per USP 797 According to the Official USP Chapter 797

What is the proper order of gowning and hand hygiene when preparing to enter the clean room?

a. Don shoe covers, mask, hair cover, facial hair cover, gown, perform hand hygiene.

b. Don hair cover, mask, facial hair cover, gown, shoe covers, then perform hand hygiene.

c. Don shoe covers, hair cover, mask, facial hair cover, perform hand hygiene, gown.

d. Perform hand hygiene, don shoe covers, hair cover, face mask, facial hair cover, gown.

Answer c is correct, gown from cleanest to dirtiest, perform hand hygiene, then put on gown.

Answer a is incorrect, gown on after hand hygiene.

Answer b is incorrect, must start from dirtiest parts and continue to the cleanest.

Answer d is incorrect, cannot do hand hygiene before covering dirtiest parts.

When cleaning positive air pressure horizontal laminar airflow workbench (LAFW), the correct order of cleaning surfaces and the motion to clean is:

a. Top using side to side motion from inside out, IV hanging pole using gripping motion, bottom using back to front motion going from one side to the other, sides using up and down motion working from inside out.

b. Bottom using side to side motion from inside out, top using side to side motion from inside out, IV hanging pole using gripping motion, sides using up and down motion from inside out.

c. Top using side to side motion from inside out, hanging pole using gripping motion, sides using top to bottom motion from inside out, bottom using side to side motion from inside out.

d. Top using front to back motion from one side to the other, hanging pole using gripping motion, sides using side to side motion from top to bottom, bottom from side to side inside out.

Answer c is correct, always clean from cleanest to dirtiest, motion perpendicular to the air flow.

Answer a is incorrect, bottom of the LAFW is always the last part to be cleaned.

Answer b is incorrect, order completely incorrect.

Answer d is incorrect, order of surfaces is correct but the motion is not—top should be side to side from inside out, side should be perpendicular to air flow.

When referring to laminar ...

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