Needlestick With an Unknown Source

Sequence matters more than speed alone.

1. Wash the wound with soap and running water. Let it bleed freely; do not scrub, squeeze, or milk the wound, and do not apply bleach or caustic agents - those measures have no proven benefit and can damage tissue.
2. Cover it and put the needle safely in a container if it is not already.
3. Report immediately to the nurse in charge and to employee health/occupational health, per policy. Time-stamp the exposure - the clock on HIV prophylaxis starts now, and the target is initiation within hours, not days.
4. Do not delay care to finish the shift, and do not begin by hunting through Mr. K's chart yourself; occupational health will coordinate source testing with the patient's consent and the physician.
5. Secure the facts: needle gauge, hollow-bore, visible blood, depth of injury, your glove status, and the source patient's risk history as known - all of these feed the risk assessment.

Document the incident per policy, including the device, the task being performed, and the staffing/equipment conditions.

The decision tree turns on your immune status and the source's status.

• Hepatitis B: you have no documented vaccination series and no titer, so you are effectively an unvaccinated exposed worker until proven otherwise. If the source is HBsAg positive, hepatitis B immune globulin plus initiation of the vaccine series is indicated, ideally within 24 hours of exposure (benefit falls off after about 7 days). If the source is negative, vaccination can still be offered on its own merits. Either way, a titer should be drawn now as the baseline.
• HIV: three-drug post-exposure prophylaxis should be started as soon as possible after exposure, ideally within 2 hours and no later than 72 hours. Baseline HIV testing of the worker is required. Because the source's HIV status is unknown, do not wait for the source result to begin PEP if the risk assessment supports it - start and stop later if the source tests negative. A hollow-bore 15-gauge needle with visible blood is a meaningful exposure.
• HCV: no prophylaxis exists. Baseline testing plus follow-up RNA testing per protocol (roughly 2–4 weeks and later) is the standard, with early treatment if seroconversion occurs.

Time-critical items: wound care, reporting, HIV PEP initiation, HBV immune globulin within 24 hours, and baseline serology. Everything else can follow.

The injury was not primarily a personal error - the environment set it up.

Three specific hazards are visible in the scenario:

1. Safety-engineered device not activated before transport. Root cause may be device design, training, or workload; but carrying two uncapped needles rather than activating the shield at the chair is the proximate behavior. Standard should be shield activation at the point of removal, one needle at a time.
2. Sharps container at chest height. Disposal at chest level puts the hands and eyes in the line of sight and near the torso, and it invites carrying rather than immediate disposal. Containers should be mounted at a height that allows a healthcare worker to see the opening and drop sharps without reaching across the body.
3. Container three-quarters full. Replacement should occur at about three-quarters full, before items protrude or resist entry.

Also: no documented immunization or titer in the employee health file means the unit cannot demonstrate immunity status for its staff - a pre-employment and periodic-review failure, not just this worker's oversight.

Fixes: point-of-use sharps containers or a bedside disposal strategy, shield-at-the-chair expectation written into procedure, container replacement rounds tied to a fill-level check, post-exposure audit with feedback, and an employee health audit of hepatitis B serostatus for all clinical staff. Report through the facility's safety event system, and consider that the coworker who bumped you indicates a space/workflow problem around the chair as well.