An adult removed an Ixodes tick estimated attached 36 hours and presents 24 hours after removal from a high Lyme-endemic area. No contraindications. ...

Question

An adult removed an Ixodes tick estimated attached >36 hours and presents 24 hours after removal from a high Lyme-endemic area. No contraindications. Best post-exposure prophylaxis?

Accepted Answer

Doxycycline 200 mg single dose within 72 hours

Answer

Amoxicillin 500 mg TID for 10 days

Answer

No antibiotics; observe

Answer

Doxycycline 100 mg twice daily for 7 days

Answer

Cefuroxime 500 mg BID for 7 days

us-abfm MCQ (SBA): Lyme Disease Prophylaxis

An adult removed an Ixodes tick estimated attached >36 hours and presents 24 hours after removal from a high Lyme-endemic area. No contraindications. Best post-exposure prophylaxis?