Question 1

What does CK-MB primarily indicate in a patient?

Accepted Answer

Myocardial infarction

Answer

Liver function

Answer

Kidney damage

Answer

Hemolysis

Question 2

What is the typical time frame for CK-MB levels to rise after myocardial injury?

Accepted Answer

Within 4 to 6 hours

Answer

1 to 2 days

Answer

24 hours

Answer

Immediately

Question 3

Which of the following conditions can elevate CK-MB levels besides myocardial infarction?

Accepted Answer

Cardiac surgery

Answer

Asthma

Answer

Diabetes

Answer

Hypertension

Question 4

What is the primary substance measured by the CK-MB test?

Accepted Answer

Creatine kinase isoenzyme

Answer

Lactate dehydrogenase

Answer

Albumin

Answer

Troponin

Question 5

What is the significance of a CK-MB level returning to normal after a myocardial infarction?

Accepted Answer

It indicates effective treatment and healing

Answer

It means heart failure

Answer

It indicates ongoing damage

Answer

It suggests a new infarction

Question 6

In addition to CK-MB, which other cardiac marker is commonly used to diagnose myocardial infarction?

Accepted Answer

Troponin

Answer

B-type natriuretic peptide

Answer

C-reactive protein

Answer

Creatinine

Question 7

How long can CK-MB levels remain elevated after a myocardial infarction?

Accepted Answer

Up to 3 days

Answer

1 hour

Answer

1 week

Answer

5 days

Question 8

What is the most specific aspect of CK-MB in diagnosing acute myocardial infarction?

Accepted Answer

It is primarily found in heart muscle

Answer

It is found in the liver

Answer

It is only found in skeletal muscle

Answer

It is unrelated to muscle

Question 9

What is the main limitation of CK-MB testing in diagnosing myocardial infarction?

Accepted Answer

It may not differentiate between types of myocardial injury

Answer

It is always accurate

Answer

It is only useful in elderly patients

Answer

It can only be used once

Question 10

Which patient population might show elevated CK-MB levels without actual myocardial infarction?

Accepted Answer

Athletes after intense exercise

Answer

Children

Answer

Non-active elderly

Answer

Pregnant women

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