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USMLE Antibiotics Exam Questions with Correct Verified Answers Latest Update (2024/2025) Guaranteed Pass $9.99   Add to cart

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USMLE Antibiotics Exam Questions with Correct Verified Answers Latest Update (2024/2025) Guaranteed Pass

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USMLE Antibiotics Exam Questions with Correct Verified Answers Latest Update (2024/2025) Guaranteed PassUSMLE Antibiotics Exam Questions with Correct Verified Answers Latest Update (2024/2025) Guaranteed PassUSMLE Antibiotics Exam Questions with Correct Verified Answers Latest Update (2024/2025) Gu...

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  • August 20, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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DoctorKen
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USMLE




USMLE Antibiotics Exam
Questions with Correct Verified
Answers Latest Update
(2024/2025) Guaranteed Pass
1. Chloramphenicol - ANS ✓MOA - inhibits peptidyltransferase of 50s
ribosome
Use - Meningitis in 3rd world
AE - anemia, gray baby syndrome


2. Clindamycin - ANS ✓MOA - blocks transpeptidation at 50s ribosome
Use - Anaerobic infections above the diaphragm
AE - MCC c. diff colitis,


3. Sulfonamides (SMX) - ANS ✓MOA - inhibits dihydropteroate
synthase to inhibit purine synthesis
Use - gram(+), gram (-), Nocardia, Chlamydia, UTI, PCP
AE - hemolysis in G6PD patients, kernicterus in infants, displaces other
drugs from warfarin, nephrotoxic, hypersensitivity rxn


4. Trimethoprim (TMP) - ANS ✓MOA - Inhibits dihydrofolate
reductase in purine synthesis
Use - TMP-SMX used for UTI, Shigella, Salmonella, PCP




USMLE Antibiotics

, 2
USMLE

AE - TMP Treats Marrow Poorly - megaloblastic anemia, leukopenia,
granulocytopenia


5. Fluoroquinolones - ANS ✓Ciprofloxacin et al
MOA - inhibit DNA gyrase
Use - Gram(-) rods of urinary and GI tract, legionella, neisseria
AE - not for pregnancy, GI, increase seizure risk, tendonitis and Achilles
tendon rupture, prolonged QT
Can't take w/ divalent cations due to impaired absorption


6. Metronidazole - ANS ✓MOA - forms free radials to damage DNA.
Ferredoxin dependent
Use - GET GAP - Giardia, E. histolytica, Trichomonas, Gardinella, Anaerobes,
H. pylori
Use for anaerobes below the diaphragm
AE - Disulfiram like reaction w/ alcohol, metallic taste, teratogen


7. Prophylaxis for M. tb? - ANS ✓Isoniazid


8. Prophylaxis for M. avium-intracellulare - ANS ✓Azithromycin


9. Course for active Tb? - ANS ✓RIPE
Rifampin
Isoniazid
Pyrazinamide
Ethambutol




USMLE Antibiotics

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