NBME 18 3 to 8 weeks (NBME Answers)

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NBME 18 Answers

nbme18/Block 2/Question#1 (reveal difficulty score)
A 25-year old woman comes to the physician ...
3 to 8 weeks 🔍 / 📺 / 🌳 / 📖
tags: repro

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submitted by ∗cheesetouch(248)

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eeargtTons era otsm suespeltbci to iveg medaga ni 38-ht kewse rnoe(mciby oipdre - i)eaosgsoerngn of grnpeyna.c FA p 596 21(0;)8 areontgste entcsoi

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cbreland as @azibird stated below, the neural tube starts to form at the 3rd week and completely forms by the 4th week. Valproic acid can cause NTD, affecting their formation in weeks 3-4. +4

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submitted by ∗azibird(278)

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F022A0 la4r9pN1u e tbue oupterssdfe erecNo fali ot feus (ht4 ewe)k

The 4th ekwe afsll in the angre fo 3 ot ,8 but shcu a iewd gaenr wreht me ffo dan I dkcipe 0 ot 2 .aanwyy

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overa the first 2 weeks are "all or none". so usually if the fetus is exposed to teratogens here, it will either terminate the pregnancy or the baby will be unaffected. +3

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