Needle-Stick Injury During a Busy Immunization Session
At a measles-rubella immunization session at a PHC in Kolar, a 23-year-old nursing intern gives an intramuscular injection to a 9-month-old infant. While recapping the needle she sustains a deep prick to the left index finger; it bleeds. The child's mother mentions that the child had a blood transfusion three months ago at a private hospital and that the child has been pale and has white patches in the mouth. The table has one general waste bin containing used cotton with blood, empty vaccine vials, a disposable syringe and two uncapped needles. The sharps container is 3 metres away and is filled to the rim with a needle protruding. The intern completed three doses of hepatitis B vaccine two years ago but has never had her anti-HBs checked. It is 11:30 am; the district hospital, which has an ART centre, is 18 km away. She washes the wound with soap and water and asks you what to do.
1. List your immediate actions after the needle-stick, including risk assessment. Explain why she should not wait for the child's HIV test result before starting post-exposure prophylaxis.
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Immediate actions
- Wash the wound with soap and running water for at least 15 seconds; do not squeeze or scrub hard. Let it bleed freely briefly. Apply an antiseptic such as chlorhexidine or povidone-iodine and cover it.
- Report to the officer-in-charge immediately and complete the needle-stick incident form. Time matters: HIV PEP works best within 2 hours and must start within 72 hours.
- Assess the source: the child's HIV status is unknown, but a blood transfusion three months ago, pallor and oral thrush make the exposure high-risk. Test the source child with consent and confidentiality, but do not wait for the result.
- Baseline tests for the intern: HIV, hepatitis B surface antigen, anti-HBs, anti-HCV, and tetanus status.
- Start HIV PEP according to the national protocol after counselling and baseline testing; arrange the first dose today, not tomorrow.
- Hepatitis B: she has had three doses but her anti-HBs is unknown. For a high-risk exposure, give hepatitis B immunoglobulin and a booster dose if available, and check anti-HBs.
Why not wait for the child's test: the source result may be delayed, the child may need consent and counselling, and PEP is time-critical. Waiting loses the window in which PEP is most effective.
2. Identify the biomedical waste segregation breaches at the session and state the correct disposal route for each item. Then give two system changes that would prevent a repeat.
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Segregation breaches
- Recapping the needle: the commonest cause of needle-stick injury. Never recap; use a needle destroyer or a one-handed technique only if absolutely necessary.
- Needles and the syringe with the needle attached in a general waste bin: they belong in the white translucent puncture-proof sharps container.
- Blood-soaked cotton in the general bin: it belongs in the yellow bag as soiled waste.
- The sharps container is 3 metres away and overfilled with a protruding needle: it must be within arm's reach, replaced when three-quarters full, and never packed by hand.
- Empty vaccine vials: glass vials go to blue as glassware; contaminated plastic items go to red; non-contaminated packaging goes to general waste. They should never be mixed with sharps.
Two system changes
- Place a sharps container on the immunization table for every session and make 'no recapping' a checked step before each injection.
- Assign a waste officer for the session, use colour-coded labelled bins, and train all staff and students on segregation and needlestick reporting.
3. What follow-up and counselling does the intern need over the next six months, and what should she be told about the source child and confidentiality?
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Follow-up
- Complete 28 days of HIV PEP; do not stop early even if side effects occur - report them for a regimen change.
- HIV testing at baseline, 6 weeks, 3 months and 6 months.
- Hepatitis B: check anti-HBs after vaccination; if not immune, complete the schedule.
- Watch for fever, rash, jaundice or glandular swelling and report promptly.
- Avoid blood donation until cleared.
Counselling and confidentiality
- The intern should be reassured that PEP is effective when started early, and that her status will be kept confidential.
- The source child's HIV test must be voluntary, confidential and in the child's best interest, with the mother's consent.
- Do not disclose the child's or the intern's status to other staff or relatives without consent.
- Document the exposure, counselling, PEP start time, follow-up dates and the incident review.