Patient Safety & Quality AssuranceCâu 75 / 100
While compounding in a horizontal laminar airflow workbench, a technician sets a stack of supplies between the HEPA filter and an open vial. Why is this unsafe?
a.It interrupts first air, so the critical site no longer receives unobstructed HEPA-filtered air and may become contaminated
b.It raises the temperature inside the hood above the permitted range
c.It triggers the hood's pressure differential alarm
d.It blocks the technician's view of the syringe graduations
Giải thích
First air is the clean air leaving the HEPA filter before it touches anything, and any object placed upstream of a critical site creates turbulence and a shadow of unfiltered air over that site. Work should be performed at least 6 inches inside the hood with nothing between the filter and the vial or needle. Temperature limits, alarms and sightlines are not the reason the practice is prohibited.
Trích dẫn luật: USP <797>Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Which step must be performed by the pharmacist before a completed prescription is released to the patient?
- A prescriber's office telephones the pharmacy to give a new prescription. In most states, what should the technician do?
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- Immediately before puncturing a vial inside the hood, what should the technician do to the rubber septum?
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- A technician pulls the wrong strength of a medication but notices the mistake and corrects it before the pharmacist's final check, so the patient is never affected. Under a just-culture approach, what should happen next?
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