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qualitycontrol-12
IMPORTANT INSTRUCTIONS TO MINIMIZE INFECTIONS in laboratory workers include specific rules about pipetting. Which of the following statements is CORRECT according to laboratory safety guidelines?
A. Mouth pipetting is acceptable for non-infectious samples such as plain water or distilled water
B. NEVER perform mouth pipetting — always use PUSH-BUTTON PIPETTES and dispensers; never blow out pipettes containing infectious material
C. Blowing out pipettes is acceptable as long as gloves are worn
D. Mouth pipetting is acceptable provided the laboratory worker is vaccinated against Hepatitis B
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