Demystifying inborn errors of metabolism

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Averil Tam
Flashcards by Averil Tam, updated more than 1 year ago
Averil Tam
Created by Averil Tam almost 6 years ago
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Question Answer
1. TRUE/FALSE? These are Inborn Errors of Metabolism. A. Phenylketonuria True
1. TRUE/FALSE? These are Inborn Errors of Metabolism. B. Cystic Fibrosis True. CF is definitely a metabolic disorder – chloride transporter defect (CFTR) causes an increase in chloride leading to all the problems of CF.
1. TRUE/FALSE? These are Inborn Errors of Metabolism. C. Insulin dependent diabetes mellitis True. DM can be argued to be metabolic as there is a genetic component leading to glucose elevation. (IEM = a genetic problem relating to an elevation of a product or substrate.)
1. TRUE/FALSE? These are Inborn Errors of Metabolism. D. Dietary vitamin B12 deficiency False. Diet has no genetic component.
1. TRUE/FALSE? These are Inborn Errors of Metabolism. E. Medium chain acyl Co A dehydrogenase deficiency True
2. Which of the following do not cause hypoketotic hypoglycaemia? a) VLCAD deficiency b) MCAD deficeincy c) Carnitine transporter defect d) Persitent Hyperinsulinaemic hypgoglycaemia of infancy e) Propionic acidaemia E. Insulin release prevents fat breakdown leading to hypoketotic hypoglycaemia. Propionic acidaemia causes ketotic hypoglycaemia.
3. TRUE/FALSE? a) Decompensation in MMA is associated with ketosis True
3. TRUE/FALSE? b) MCAD deficiency can lead to hepatic encephalopathy True
3. TRUE/FALSE? c) Ammonia can be raised in fat oxidation defects True
3. TRUE/FALSE? d) Ammonia is always raised in urea cycle defects False
3. TRUE/FALSE? e) Blood gas in decompensated MSUD can be normal True
4. In Bangladesh, what do you think should be screened? A. Infantile Pompe Disease B. Classical methylmalonic aciduria C. Congenital hypothyroidism D. Congenital infections E. Vitamin B12 deficiency E
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