NHA Certified Phlebotomy Technician (CPT)Specimen HandlingHard
A phlebotomy technician observes that a urine specimen collected for a routine urinalysis (UA) is visibly cloudy and has been sitting at room temperature for 4 hours. Which of the following actions is most appropriate?
- ACentrifuge the specimen to clarify it before testing.
- BProceed with testing, noting the cloudiness in the documentation.
- CAdd a preservative to the specimen and re-label it.
- DNotify the nurse or ordering provider to request a recollection.
Show answer & explanationAnswer & explanation
Correct answer: D. Notify the nurse or ordering provider to request a recollection.
Urine specimens for routine UA should be tested within 1 hour or refrigerated if a delay is expected. Sitting at room temperature for 4 hours can lead to bacterial overgrowth, cellular degradation, and changes in pH, making the results unreliable. A recollection is necessary.
Why the other options are wrong
- A. Centrifuging might clarify the specimen but won't reverse the chemical and cellular changes that occurred due to prolonged room temperature exposure, leading to inaccurate results.
- B. Proceeding with testing would yield unreliable results due to degradation, potentially leading to misdiagnosis or inappropriate treatment.
- C. Adding a preservative after the fact will not reverse the degradation that has already occurred and is not a standard procedure for a routine UA that has been improperly stored.
Urine Specimen Stability (Routine UA)
Routine urinalysis specimens must be processed promptly or refrigerated within 1 hour of collection to prevent bacterial overgrowth, cellular degradation, and changes in chemical composition.
- Test within 1 hour at room temp.
- Refrigerate up to 24 hours.
- Prolonged room temp leads to false results.
Memory trick: One hour in the warm, or fridge it to disarm, degradation's harm!