A 23-year-old man has acute streptococcal pharyngitis. He had anaphylaxis to amoxicillin a year ago. What is the best antibiotic?
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الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: B. Oral clindamycin
Clindamycin is the best alternative for Strep pharyngitis in penicillin allergy (covers Strep., MSSA, MRSA, anaerobes). Metronidazole has no Strep. pyogenes role, and ceftriaxone (a beta-lactam) is unwise after amoxicillin anaphylaxis.
ليش كل خيار صح أو غلط
-
A
ليش غلط
Metronidazole's listed roles are anaerobes (gram-negative and most gram-positive) and trichomoniasis, giardiasis, E. histolytica and bacterial vaginosis. Strep pharyngitis is not among them.
✓ Antibiotic-1 (3).pdf · p. 31 -
B
ليش صح
Clindamycin is the best alternative for Strep pharyngitis in patients with penicillin allergy, and it covers Strep, MSSA, MRSA and anaerobes.
✓ Antibiotic-1 (3).pdf · p. 29 -
D
ليش غلط
Ceftriaxone is a cephalosporin, and the notes give cephalosporins the same important side effects as penicillin, so it is a risky choice after amoxicillin anaphylaxis.
✓ Antibiotic-1 (3).pdf · p. 15
- المصدر
- Antibiotic-1 (3).pdf · p. 29
- المحاضرة
- Antimicrobials · Infectious Diseases · Module B
- ظهر في
- MED41 ♂ EOM B