CMLA Specimen Collection & Handling

Question 1

What is the most important factor when collecting a blood sample?

Accepted Answer

Proper identification of the patient and correct labeling of samples.

Answer

Proper identification of the patient and correct labeling of samples is paramount to patient safety and accurate diagnosis. Misidentification can lead to incorrect testing, misdiagnosis, and potentially harmful treatments for the wrong patient. This step ensures that every test result is correctly linked to the individual from whom the sample was collected.

Question 2

How should a urine sample be stored before testing?

Accepted Answer

Store it in a cool place and test promptly.

Answer

Storing a urine sample in a cool place and testing it promptly helps preserve its integrity. Room temperature can promote bacterial growth and the degradation of certain analytes, altering the sample's composition and leading to inaccurate test results. Prompt testing minimizes these changes, ensuring the results reflect the patient's true condition.

Question 3

What is the correct method for labeling collected specimens?

Accepted Answer

Label specimens with patient details, date, and time.

Answer

Labeling specimens with full patient details, date, and time is crucial for unambiguous identification and traceability. This comprehensive information prevents mix-ups, ensures the correct patient receives the correct results, and provides a clear record of when the sample was collected. Accurate labeling is a fundamental aspect of patient safety and laboratory quality control.

Question 4

What should you do if a specimen is contaminated during collection?

Accepted Answer

Discard the specimen and collect a new one.

Answer

If a specimen is contaminated during collection, it must be discarded, and a new one collected. Contamination introduces foreign substances or microorganisms that can interfere with test results, leading to inaccurate diagnoses or treatments. Discarding and recollecting ensures the integrity of the sample and the reliability of subsequent testing.

Question 5

Why is it important to follow proper hygiene practices during specimen collection?

Accepted Answer

To prevent contamination and ensure accuracy.

Answer

Following proper hygiene practices during specimen collection is essential to prevent contamination of the sample and ensure accurate test results. It minimizes the introduction of external bacteria or substances that could interfere with analysis. This practice also protects both the patient and the healthcare worker from potential infection.

(CMLA) Certified Medical Laboratory Assistant Practice Test

(CMLA) Certified Medical Laboratory Assistant Practice Test

CMLA Specimen Collection & Handling