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Standard precautions in a hospital are designed to

  • A.treat every patient's blood as potentially infectious
  • B.identify carriers so they can be isolated
  • C.protect only staff working in operating theatres
  • D.replace the need for hepatitis B vaccination

Answer: A

Because infection is often silent, the safe assumption is that any blood may carry a blood-borne virus, so barrier precautions apply to everyone rather than to those known to be infected. Vaccination complements the practice rather than replacing it.

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