Question

Q

When an acute myocardial infarction occurs, in what order (list first to last) will the enzymes or proteins, CK-MB, myoglobin, and LD (lactate dehydrogenase) become elevated in the serum?

		myoglobin, LD, CK-MB
		CK-MB, LD, myoglobin
		myoglobin, CK-MB, LD
		LD, CK-MB, myoglobin

Question 13

A patient was instructed to fast 12 hours prior to her 8 am doctor’s appointment. However, she ate her usual breakfast of orange juice, coffee, and a bagel with cream cheese. It would be expected of the lipid test results that

		both the total cholesterol and triglycerides results will be invalid
		chylomicrons will be increased but total cholesterol and HDL cholesterol will be decreased
		both the triglycerides and the calculated LDL cholesterol will be affected by food intake
		only triglycerides result will not be affected by food intake

Answer 1

When an acute myocardial infarction occurs, in what order (list first to last) will the enzymes or proteins, CK-MB, myoglobin, and LD (lactate dehydrogenase) become elevated in the serum?

Answer :Option 2)

CK - MB, LD, Myoglobin

With rapid laboratory testing for creatine kinase (CK)-MB and lactate dehydrogenase, early diagnosis and management of acute myocardial infarction (AMI) is performed in the emergency room.

However, cTnI was the most specific serum marker (specificity 91.9% compared to CK-MB 85.6%, myoglobin 61.4%).

Question 13

A patient was instructed to fast 12 hours prior to her 8 am doctor’s appointment. However, she ate her usual breakfast of orange juice, coffee, and a bagel with cream cheese. It would be expected of the lipid test results that

Answer :C) both the triglycerides and the calculated LDL cholesterol will be affected by food intake.

Fasting means they had nothing to eat or drink except water for at least eight hours before the test.The differences in their total, LDL, and HDL cholesterol values were negligible. Triglyceride levels were modestly higher in the nonfasting samples.

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