USMLE Forum Archives - USMLE Step 1 - Biochemistry MCQ
Biochemistry MCQ
drspleen - 02-28-11 19:53
An 11 year old boy presents with balance and difficulty with night vision. His mother says he had foul smelling stools and failure to thrive as an infant. Physical examination reveals poor muscle coordination, ataxia, decreased proprioception and vibratory sensation. Lab tests show low total cholesterol and Vitamin A levels. The patient most likely has an inherited mutation in which of the following?
a. 7- alpha hydroxylase
b. Microsomal Transfer Protein (MTP)
c. Hormone Sensitive Lipase (HSL)
d. Lipoprotein Lipase (LPL)
e. Lecithen Cholesterol acetyltransferase (LCAT)
drspleen - 02-28-11 19:53
An 11 year old boy presents with balance and difficulty with night vision. His mother says he had foul smelling stools and failure to thrive as an infant. Physical examination reveals poor muscle coordination, ataxia, decreased proprioception and vibratory sensation. Lab tests show low total cholesterol and Vitamin A levels. The patient most likely has an inherited mutation in which of the following?
a. 7- alpha hydroxylase
b. Microsomal Transfer Protein (MTP)
c. Hormone Sensitive Lipase (HSL)
d. Lipoprotein Lipase (LPL)
e. Lecithen Cholesterol acetyltransferase (LCAT)
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#1
Re: Biochemistry MCQ adonis123 - 03-01-11 11:59 
posted by drspleen on 02-28-11 19:53
An 11 year old boy presents with balance and difficulty with night vision. His mother says he had foul smelling stools and failure to thrive as an infant. Physical examination reveals poor muscle coordination, ataxia, decreased proprioception and vibratory sensation. Lab tests show low total cholesterol and Vitamin A levels. The patient most likely has an inherited mutation in which of the following?
a. 7- alpha hydroxylase
b. Microsomal Transfer Protein (MTP)
c. Hormone Sensitive Lipase (HSL)
d. Lipoprotein Lipase (LPL)
e. Lecithen Cholesterol acetyltransferase (LCAT)
An 11 year old boy presents with balance and difficulty with night vision. His mother says he had foul smelling stools and failure to thrive as an infant. Physical examination reveals poor muscle coordination, ataxia, decreased proprioception and vibratory sensation. Lab tests show low total cholesterol and Vitamin A levels. The patient most likely has an inherited mutation in which of the following?
a. 7- alpha hydroxylase
b. Microsomal Transfer Protein (MTP)
c. Hormone Sensitive Lipase (HSL)
d. Lipoprotein Lipase (LPL)
e. Lecithen Cholesterol acetyltransferase (LCAT)
U can now answer this question.
#2
Re: Biochemistry MCQ babbu5508 - 03-01-11 13:19 The patient most likely has an inherited mutation in which of the following?
e. Lecithen Cholesterol acetyltransferase (LCAT)...i think so....
#3
Re: Biochemistry MCQ
drspleen - 03-01-11 19:25 b. Microsomal Transfer Protein (MTP). The patient has Abetalipoproteinemia due to mutation in MTP 1. Microsomal Triglyceride Transfer Protein functions to transfer triglycerides to Apolipoprotein B during VLDL assembly in liver.
#7
Re: Biochemistry MCQ drspleen - 03-21-11 19:05 Microsomal Transfer Protein (MTP). The patient has Abetalipoproteinemia due to mutation in MTP 1. Microsomal Triglyceride Transfer Protein functions to transfer triglycerides to Apolipoprotein B during VLDL assembly in liver.
#8
Re: Biochemistry MCQ sudha2015 - 03-22-11 01:20 Physical examination reveals poor muscle coordination, ataxia, decreased proprioception and vibratory sensation
b
#9
Re: Biochemistry MCQ drspleen - 03-22-11 07:27 The patient has Abetalipoproteinemia due to mutation in MTP 1. Microsomal Triglyceride Transfer Protein functions to transfer triglycerides to Apolipoprotein B during VLDL assembly in liver
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