Managing a Needlestick Injury in a Healthcare Worker
A 32-year-old nurse sustains a needlestick injury while drawing blood from an HIV-positive patient with a known viral load of 50,000 copies/mL. The nurse was wearing gloves but the needle penetrated the glove and skin. The injury occurred 30 minutes ago. The nurse is anxious and asks about the risk of transmission and what to do. The clinic has a protocol for post-exposure prophylaxis (PEP) but the nurse is unsure if she should take it because she is breastfeeding a 6-month-old infant. The source patient's HIV status is documented, but the nurse does not know if the patient has other bloodborne infections. The clinic's infection control officer is unavailable.
1. What is the immediate management of this needlestick injury, including risk assessment and PEP recommendations?
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Immediate steps: Wash the wound with soap and water; do not squeeze or use bleach. Assess risk: percutaneous exposure to HIV-positive blood with high viral load constitutes a significant risk (estimated 0.3% per exposure, higher with high viral load). PEP: Start PEP as soon as possible, ideally within hours (not later than 72 hours). Recommended regimen: tenofovir/emtricitabine plus dolutegravir (or raltegravir) for 28 days. Breastfeeding: Dolutegravir is considered compatible with breastfeeding; tenofovir/emtricitabine are also low risk. The benefit of PEP outweighs risk. Consult with HIV specialist or warmline. Baseline testing: HIV, HBV, HCV for nurse and source (if unknown). Follow-up: HIV testing at 6 weeks, 12 weeks, 6 months. Report incident per protocol. Provide psychological support.
2. How should the nurse's concerns about breastfeeding and potential side effects be addressed?
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Breastfeeding: Data on antiretroviral transfer into breast milk is limited but dolutegravir, tenofovir, and emtricitabine are considered safe during lactation. The risk of HIV transmission to the infant if the mother seroconverts is significant (15-30% without treatment). PEP is recommended. Side effects: Common side effects include nausea, headache, fatigue; usually transient. Serious side effects are rare (hepatotoxicity, rash). Monitor liver enzymes at baseline and as needed. Shared decision-making: Discuss risks and benefits. Reassure that the risk of transmission from a single needlestick is low but not zero. Emphasize adherence. Offer alternative feeding if concerned, but breastfeeding can continue. Document discussion.