s117 - ebnalfady

[ArchivalUser]

A 3-month-old boy presents with poor feeding and growth, low muscle tone (hypotonia), elevation of blood lactic acid (lactic acidemia), and mild acidosis (blood pH 7.3 to 7.35). The ratio of pyruvate to lactate in serum is elevated, and there is decreased conversion of pyruvate to acetyl coenzyme A in fibroblasts. Which of the following compounds might be considered for therapy?
A. Pyridoxine
B. Thiamine
C. Free fatty acids
D. Biotin
E. Ascorbic acid

[ArchivalUser]

? A pyridoxine

[ArchivalUser]

interactive tests (aka Kaplan)

redirect link for onexaminаtion.org

www.medq.biz/usmle.php

[ArchivalUser]

ANS: B

[ArchivalUser]

B
Thiamine (TPP)is one of the co-factors for pyruvate DH , the ENZYME that catalyzes the the formation of acetly CoA from pyruvate.

[ArchivalUser]

hello,
can u please where can i get mcqs for histology slides,neuro pictures,ct&mri scans for step 1.
my exam in next 10days.
thank you i advance.

[ArchivalUser]

bb

[ArchivalUser]

tpp

[ArchivalUser]

B...