A 25-year-old medical student is reviewing post-exposure prophylaxis protocols for various infectious disease scenarios. Which prophylactic regimen is most appropriate for each of the following patient exposures?
- Adult with an Ixodes tick attached for 48 hours in an endemic region, currently asymptomatic.Single-dose oral doxycycline
- Healthcare worker with a deep percutaneous needlestick injury from a patient with untreated HIV.Four-week course of tenofovir-emtricitabine plus dolutegravir
- Asymptomatic adult who shares a dormitory room with a patient recently diagnosed with meningococcal meningitis.Single-dose oral ciprofloxacin
- Unvaccinated adult presenting with a deep, soil-contaminated puncture wound to the foot.Tetanus toxoid-containing vaccine plus tetanus immune globulin
- Previously unvaccinated traveler who sustained an unprovoked bat bite while exploring a cave.Human rabies immune globulin plus a 4-dose rabies vaccine series
Answer
The correct matches align specific infectious exposures with their targeted prophylactic guidelines: Lyme disease exposure requires single-dose doxycycline; HIV requires a 3-drug ART regimen for four weeks; meningococcal exposure requires single-dose ciprofloxacin; a tetanus-prone wound in an unvaccinated patient requires vaccine plus immunoglobulin; and a rabies exposure in an unvaccinated patient requires vaccine plus immunoglobulin.
Each clinical scenario presents a high-risk infectious exposure that warrants immediate, targeted post-exposure prophylaxis to prevent disease transmission or activation. The matching pairs reflect current standard-of-care guidelines for Lyme disease, HIV, meningococcal disease, tetanus, and rabies.
Step-by-Step Solution
Key Concept
Post-Exposure Prophylaxis (PEP) in Infectious Diseases
Estimated Time:2m 0s