Medical Technologist Test Medical Technologist General Information 3

Question 1

Which blood collection tube additive is used for coagulation studies such as PT and aPTT?

Accepted Answer

Sodium citrate (light blue top)

Answer

Sodium citrate (light blue top) chelates calcium to prevent clotting and is the required anticoagulant for coagulation factor studies.

Question 2

When a urine specific gravity reading is 1.030, this indicates:

Accepted Answer

Highly concentrated urine with high solute load

Answer

A specific gravity of 1.030 is at the high end of the reference range, indicating highly concentrated urine with a significant solute load.

Question 3

What is the purpose of using an internal standard in mass spectrometry-based laboratory testing?

Accepted Answer

To correct for matrix effects and variations in sample preparation

Answer

An internal standard, added to each sample, corrects for variability in extraction efficiency, matrix effects, and instrument response.

Question 4

A laboratory receives a hemolyzed specimen for a potassium assay. The correct action is to:

Accepted Answer

Reject the specimen and request a new collection

Answer

Hemolysis falsely elevates potassium (RBCs contain high intracellular K+), so the specimen must be rejected and recollected to ensure accurate results.

Question 5

Which organization is responsible for certifying medical technologists in the United States with the MT(ASCP) credential?

Accepted Answer

American Society for Clinical Pathology Board of Certification (ASCP BOC)

Answer

The ASCP Board of Certification administers the Medical Technologist (MT) certification examination and issues the MT(ASCP) credential.

Medical Technologist Test Practice Test

Medical Technologist Test Practice Test

Medical Technologist Test Medical Technologist General Information 3