CDC Guidelines for Management of Needlestick Injuries

Immediate Wound Care

• Wash the wound and any skin that contacted blood or body fluids with soap and water, and flush mucous membranes with water – CDC recommends this as the first step after exposure. 1
• Antiseptics may be applied but are not required; there is no evidence that they further reduce HIV transmission risk – the recommendation is based on lack of supporting data. 1
• Do NOT apply caustic agents (e.g., bleach) or inject antiseptics/disinfectants into the wound – such measures have no proven benefit and may cause harm. 1
• Do NOT express fluid by squeezing the wound – squeezing can increase tissue damage and does not improve outcomes. 1

Immediate Reporting and Documentation

• Report the exposure immediately; HIV post‑exposure prophylaxis (PEP) is most effective when started as soon as possible, ideally within hours – early initiation maximizes efficacy. 1, 2
• Document the exposure in the worker’s confidential medical record, including:
  These elements are required to guide risk assessment and management. 1, 3

Risk Assessment

• Evaluate the risk of blood‑borne pathogen transmission based on the type of body substance and the route of exposure – CDC advises a systematic assessment to determine need for prophylaxis. 1
• High‑risk exposures include:
  These scenarios warrant further evaluation and possible PEP. 1

HIV Post‑Exposure Prophylaxis (PEP)

• Do NOT delay HIV PEP; it is most effective when started within hours of exposure, and efficacy declines significantly after 72 hours – timely initiation is critical. 1, 2
• Consider an expanded PEP regimen (e.g., adding a third antiretroviral drug) when the source’s viral load is high or the exposure is severe – regimen intensity should match the assessed risk. 1

Strength of evidence: All statements are derived from CDC’s “MMWR Recommendations and Reports” (1998), representing strong, evidence‑based public‑health guidance.

Post-Exposure Management for Blood-Borne Pathogens

Immediate Care and Risk Assessment

• The Centers for Disease Control and Prevention recommends washing wounds and skin thoroughly with soap and water immediately after exposure, and flushing mucous membranes with water if mucous membrane exposure occurred 4, 5, 6
• The exposure risk should be determined by evaluating the type of fluid involved and the type of exposure, with percutaneous injury carrying a significant risk of blood-borne pathogen transmission 4, 5
• Mucous membrane or non-intact skin exposure also increases the risk of transmission 4, 5

Hepatitis B Post-Exposure Prophylaxis

• The Centers for Disease Control and Prevention recommends administering hepatitis B immune globulin (HBIG) as soon as possible to unvaccinated individuals exposed to HBsAg-positive or unknown source, along with initiating hepatitis B vaccine series simultaneously 4, 7
• Both HBIG and vaccine should be available for timely administration, and the individual should be tested for anti-HBs response 1-2 months after the last vaccine dose 4, 5, 6

HIV Post-Exposure Prophylaxis

• The Centers for Disease Control and Prevention recommends initiating HIV post-exposure prophylaxis (PEP) within 72 hours of exposure, with a basic regimen including Zidovudine (ZDV) and Lamivudine (3TC) 4, 5, 8
• The individual should be evaluated within 72 hours after exposure and monitored for drug toxicity for at least 2 weeks, with follow-up testing for HIV at 6 weeks, 3 months, and 6 months post-exposure 4, 5, 9
• The individual should be advised to use precautions to prevent secondary transmission during the 6-month follow-up period 4, 5

Hepatitis C Management

• The Centers for Disease Control and Prevention recommends no post-exposure prophylaxis for HCV exposure, but rather baseline testing for anti-HCV and alanine aminotransferase (ALT), followed by follow-up testing at 4-6 months after exposure 4, 5, 6
• HCV RNA testing can be performed at 4-6 weeks if earlier diagnosis is desired, and repeatedly reactive anti-HCV enzyme immunoassays should be confirmed with supplemental tests 4, 5