A healthcare worker has a needlestick injury from a patient known to be HIV positive. What is the recommended prophylaxis?AImmediate HIV test, then no prophylaxis unless test is positiveBStart post-exposure prophylaxis (PEP) within 72 hoursCStart post-exposure prophylaxis (PEP) within 24 hoursDStart post-exposure prophylaxis (PEP) immediately (preferably within 1 hour) and continue for 28 daysEDo nothing; the risk is negligibleCheck my answer