NBME 18 Answers : Block 2 : #21 = 66 yo woman, 2 days of fever, flank pain, pain with urination, nausea

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NBME Answers & Explanations

NBME 18 Answers

nbme18/Block 2/Question#21

66 yo woman, 2 days of fever, flank pain, pain with urination, nausea

Calcium carbonate

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submitted by madmoroccan(0),

divalent cations interfere with the absorption (adsorbtion?) of Ciprofloxacin.

redvelvet divalent cations interfere with the absorption of tetracyclines, not fluoroquinolones. anti-acids interfere with the absorption of fluoroquinolones. (like in this q, it's ca carbonate) +

keyseph According to SketchyPharm, divalent cations also interfere with the absorption of fluoroquinolones +

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submitted by krewfoo99(3),

Calcium Carbonate is an antacid which can chelate and decrease effectiveness of other drugs such as tetracyclines and fluroquinolones