An infection prevention department at a VA medical center asked whether an exposed employee's blood needs to be tested only when the source individual tests positive for HIV or HBV, as U.S. Public Health Service guidelines might suggest, and what timeframe counts as 'as soon as feasible' for testing the exposed employee.
On the first question, OSHA said no: the Bloodborne Pathogens standard requires employers to make blood collection and testing for both HBV and HIV available following exposure incidents, independent of the source patient's status (29 CFR 1910.1030(f)(3)(iii)(A)). OSHA gave three reasons: the exposed employee may worry the source patient's negative result is a false negative; the source patient may have contracted a bloodborne disease after a previous negative test; and the exposed employee may not want to wait for a pending source test result before starting post-exposure prophylaxis (PEP). In addition, under 29 CFR 1910.1030(f)(3)(iii)(B), an employee who initially declines HIV testing can request it within at least 90 days after baseline blood collection, giving time for an informed decision.
On timing, OSHA referenced its prior 2013 interpretation that obtaining a test result within three to four hours aligns with the 'as soon as feasible' requirement in 1910.1030(f)(3)(iii)(A), particularly given CDC recommendations for rapid HIV testing. OSHA stressed that 1910.1030(f)(3) mandates the post-exposure medical evaluation be 'made immediately available,' with 'immediately' signifying urgency rather than an exact deadline. Because PEP effectiveness depends on timing, CDC guidance recommends starting PEP within hours of suspected HIV exposure, with reevaluation strongly recommended within 72 hours post-exposure.