ASPT ASPT Quality Assurance & Laboratory Operations 1

Question 1

What is the purpose of a delta check in laboratory quality assurance?

Accepted Answer

Compare a patient's current result to a previous result to flag unusual changes

Answer

Verify equipment calibration

Answer

Confirm correct patient identification

Answer

Ensure reagent expiration dates are valid

Question 2

Which organization sets the standards for laboratory quality and proficiency testing in the US under CLIA?

Accepted Answer

CMS (Centers for Medicare & Medicaid Services)

Answer

CDC

Answer

OSHA

Answer

FDA

Question 3

What does QC (quality control) in phlebotomy primarily ensure?

Accepted Answer

Test results are reliable, accurate, and reproducible

Answer

Staff scheduling is accurate

Answer

Patient billing is correct

Answer

Tube labels are printed correctly

Question 4

What is the correct action when a quality control result falls outside the acceptable range?

Accepted Answer

Document and investigate the failure before reporting patient results

Answer

Report patient results anyway

Answer

Repeat QC once without documentation

Answer

Call the physician immediately

Question 5

Which type of error occurs when a specimen is collected from the wrong patient?

Accepted Answer

Pre-analytical error

Answer

Analytical error

Answer

Post-analytical error

Answer

Random error

Question 6

How often should a phlebotomist typically verify the expiration date of collection tubes?

Accepted Answer

At the start of each shift or before each use

Answer

Only when opening a new box

Answer

Annually during inventory review

Answer

Only if a result appears abnormal