A Saturday Night Needlestick and a Source Patient Who Has Not Been Asked

1. Wound care immediately. Wash the site with soap and running water; do not scrub, squeeze, or apply bleach or caustic agents. There is no evidence that squeezing expresses virus, and chemical irritants add tissue injury without benefit. Flush mucous membranes with water or saline if involved.

2. Report and document. Notify the charge nurse and the laboratory supervisor or designee, open the exposure report, and record the time of exposure, the device (hollow-bore 21-gauge butterfly, a higher-risk device than a suture needle), the inoculum (visible blood), and the source patient identifiers.

3. Establish the student's baseline. Draw her blood for HIV, HBV (HBsAg, anti-HBs, anti-HBc), HCV antibody with reflex RNA, and baseline liver enzymes. The missing anti-HBs is critical: without a documented protective titer after the childhood series, she cannot be assumed immune to hepatitis B.

4. Get a decision on HIV post-exposure prophylaxis. PEP is most effective started within hours; guidelines allow initiation up to 72 hours but earlier is better. The occupational health provider has not called back, so escalate to the on-call infectious disease physician or the emergency department. Do not let the student leave without a decision documented. If PEP is indicated - a hollow-bore needlestick with visible blood from a source of unknown status generally is - start it and discontinue later if the source is confirmed negative.

5. Manage hepatitis B. If she is not immune, hepatitis B immune globulin plus a vaccine booster is time-sensitive, ideally within 24 hours. This decision must not wait for Monday.

Answer directly and kindly: no, not without a lawful basis. The reasoning is worth spelling out because she is frightened and a bare 'no' will feel arbitrary.

Why:

• Consent is the default. HIV testing generally requires the source patient's informed consent, and the blood already in the laboratory was collected for a different purpose. Adding a test is a new use of his specimen.
• There are lawful routes, and they are fast. Most jurisdictions permit source testing in occupational exposure without the source's consent, or with a streamlined consent process, and many allow the exposed worker to be told the result without the source's identity being disclosed. Some states require written consent; some allow the test to proceed after the source is informed and offered the chance to refuse; a few permit testing without consent after an exposure. The specific rule is state law and the facility's exposure control plan - which is why the plan needs to be retrieved, not guessed at.
• Do not just do it because the situation is sympathetic. An unauthorized HIV test is a reportable privacy breach and can invalidate the result's use, expose the laboratory, and harm the patient's trust.

What to say: 'I can't add a test he did not consent to. What I can do is get the exposure protocol moving - we ask him tonight, there is a defined process for exactly this, and if he refuses there is usually a legal pathway that still gets you an answer.'

Then act: retrieve the exposure control plan, page the nursing supervisor and the on-call provider, and have a clinician approach the patient for consent that night.

When the source refuses, the pathway shifts from consent to procedure.

1. Invoke the jurisdiction's exposure-testing provision. Many states allow source testing without consent after an occupational exposure, often with a documented determination by a physician or public health authority, and often on a stored specimen. Follow the written protocol rather than improvising; the facility's exposure control plan should name who can authorize this.
2. Do not let refusal block PEP. The decision to start HIV PEP is made on risk assessment, not on a confirmed source result. Unknown status with a hollow-bore needlestick and visible blood is enough to start, and the regimen can be stopped at 4 weeks or when the source is clarified.
3. Track hepatitis C appropriately. The source's documented sustained virologic response after treatment in 2017 does not fully exclude reinfection, but the risk is low. Baseline the student and repeat HCV RNA at the intervals in the protocol (typically 4-6 weeks and later), with counseling about the window period.
4. Arrange follow-up before the student leaves. Occupational health appointment, PEP supply if started, instructions on side effects and adherence, repeat serology schedule, and a named contact.

Confidentiality runs both ways: the source patient's identity and test results must not be disclosed to the student beyond what the law allows - typically she is told the exposure-relevant status, not the person's name or full chart. The student's own results belong in the occupational health record, not in the laboratory LIS, not in a shared email, and not in a conversation at the bench.

Then fix the system: review why the safety shield was not activated, whether a safety-engineered device was used as required, whether the student had been signed off on that device, and add the review to the exposure log with an owner and a date.