Free CMT Clinical Chemistry Questions and Answers

Question 1

Which organ is primarily responsible for producing albumin?

Accepted Answer

Liver

Answer

The liver is the primary site for the synthesis of most plasma proteins, including albumin. Albumin is a crucial protein responsible for maintaining oncotic pressure and transporting various substances in the blood. Dysfunction of the liver can lead to decreased albumin production, impacting these vital functions and indicating liver disease.

Question 2

What is the normal reference range for fasting blood glucose in adults?

Accepted Answer

70–99 mg/dL

Answer

The normal reference range for fasting blood glucose in adults is typically 70–99 mg/dL (3.9–5.5 mmol/L). Values outside this range can indicate conditions like hypoglycemia (too low) or hyperglycemia (too high), which may suggest diabetes or prediabetes. This measurement is a key indicator of an individual's glucose metabolism and overall health.

Question 3

Which enzyme is most specific for myocardial infarction?

Accepted Answer

Troponin

Answer

Cardiac troponins (I and T) are highly specific and sensitive biomarkers for myocardial injury, making them the preferred test for diagnosing myocardial infarction (heart attack). They are released into the bloodstream when heart muscle cells are damaged or die. While CK-MB is also used, troponin levels rise earlier and remain elevated longer, providing a more definitive diagnosis.

Question 4

What does an elevated serum creatinine level typically indicate?

Accepted Answer

Kidney dysfunction

Answer

Creatinine is a waste product of muscle metabolism that is filtered by the kidneys and excreted in urine. An elevated serum creatinine level indicates that the kidneys are not effectively filtering waste products from the blood, suggesting impaired kidney function or kidney disease. It is a widely used marker for assessing renal health and monitoring kidney function.

Question 5

Which test is commonly used to monitor long-term glucose control in diabetics?

Accepted Answer

HbA1c

Answer

Hemoglobin A1c (HbA1c) measures the average blood glucose levels over the past 2-3 months by assessing the percentage of hemoglobin that is glycated. This test provides a long-term picture of glucose control, making it invaluable for diagnosing diabetes and monitoring the effectiveness of treatment in diabetic patients. It reflects chronic glucose exposure, unlike a single fasting glucose measurement.

CMT - Certified Medical Technologist Practice Test

CMT - Certified Medical Technologist Practice Test

Free CMT Clinical Chemistry Questions and Answers