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Biochem-Nitrogen Metabolism Disorders-WVSOM Class of 2012

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Question
Answer
deficient enzyme in pku?   phenylalanine hydroxylase  
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most common disorder of amino acid metabolism?   pku  
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Mental retardation, delayed development, hyperactivity, tremor, hypopigmentation are all symptoms of what disease?   pku  
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diet prescribed in pku?   phenylalanine is restricted, tyrosine is supplemented  
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albinism is caused by deficiency in what enzyme?   tyrosinase  
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alkaptonuria is caused by deficiency in what enzyme?   homogentisate oxidase deficiency  
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what is a symptom of alkaptonuria?   urine darkens over time, osteoarthritis  
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what is the diet regimen of alkaptonuria?   restrict phenylalanine and tyrosine  
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what is tested for in alkaptonuria?   homogentisate can be detected in the urine  
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what is tested for in hyperhomocystinemia?   elevated homocysteine and methionine  
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what enzyme is deficient in hyperhomocystinemia?   cystathionine synthase  
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physical findings in homocystinuria?   Causes lens displacement, skeletal abnormalities, premature arterial disease, mental retardation  
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treatment of homocystinuria?   B6, B12, folate supplement; methionine restriction  
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what are test values for otc deficiency?   hyperammonemia; increased urinary orotic acid  
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early symptoms of otc deficiency?   vomiting, hypotonia, seizures, lethargy, cerebral edema, coma  
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late symptoms of otc deficiency?   headache after a high protein meal, disorientation, irritability  
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which disease would present in infant males sooner than adult women?   otc deficiency  
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what would be a dietary treatment in otc?   low protein diet  
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what are symptoms of hyperammonemia?   tremors, slurring of speech, blurred vision, vomiting, somnolence, coma  
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elevated leucine in blood and maple syrup urine are indicative of what?   msud  
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what is deficient in msud?   a-ketoacid dehydrogenase deficiency  
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what are physical symptoms of msud?   feeding problems, vomiting, dehydration  
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Created by: mhassan
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