Chapter·BiochemistryGlycogen storage diseases

GSD type I (von Gierke disease)Downloads

10Questions
10Flashcards
1Tables & Flowcharts

Study Materials

Practice

Sample Questions

1

A 4-month-old boy is brought to his pediatrician for a well-child visit. His parents have noticed that he has had poor growth compared to his older siblings. The boy was delivered vaginally after a normal pregnancy. His temperature is 98.8°F (37.1°C), blood pressure is 98/68 mmHg, pulse is 88/min, and respirations are 20/min. On exam, his abdomen appears protuberant, and the boy appears to have abnormally enlarged cheeks. A finger stick reveals that the patient’s fasting blood glucose is 50 mg/dL. On further laboratory testing, the patient is found to have elevated blood lactate levels, as well as no response to a glucagon stimulation test. What enzymatic defect is most likely present?

AAlpha-1,4-glucosidase

BGlycogen synthase

CAlpha-1,6-glucosidase

DGlucose-6-phosphatase

EGlycogen phosphorylase

2

While walking through a park with his wife, a 51-year-old man with type 2 diabetes mellitus develops nausea, sweating, pallor, and palpitations. For the past 3 weeks, he has been trying to lose weight and has adjusted his diet and activity level. He eats a low-carb diet and swims 3 times a week. The man returned home from a training session 2 hours ago. Current medications include basal insulin and metformin. Shortly before his wife returns from their car with his emergency medication kit, he becomes unconscious. Administration of which of the following is the most appropriate next step in management?

ASublingual nitroglycerine

BOral glucose

CIntramuscular glucagon

DRectal lorazepam

EIntra-arterial dextrose

3

A 27-year-old Hispanic G2P1 presents for a routine antepartum visit at 26 weeks gestation. She has no complaints. The vital signs are normal, the physical examination is within normal limits, and the gynecologic examination corresponds to 25 weeks gestation. The oral glucose tolerance test (OGTT) with a 75-g glucose load is significant for a glucose level of 177 mg/dL at 1 hour and 167 mg/dL at 2 hour. The fasting blood glucose level is 138 mg/dL (7.7 mmol/L), and the HbA1c is 7%. Which of the following represents the proper initial management?

ASitagliptin

BDietary and lifestyle modification

CMetformin

DGlyburide

EInsulin

+ 7 more in the PDF

More Glycogen storage diseases downloads

Browse all chapters

View all