15. A phlebotomist is collecting a lactic acid sample that will be transported to an outside laboratory. Which of the following actions should the phlebotomist take when handling the specimen?
Answer: B
Chill the sample.
To ensure the accuracy of the lactic acid levels, the phlebotomist should chill the sample. Chilling the sample helps to prevent metabolic changes that could lead to falsely elevated lactic acid levels before analysis.
A) Protect the sample from light.
While protecting samples from light is crucial for certain tests, it is not a requirement for lactic acid samples. This option does not address the specific needs for lactic acid specimen handling, making it incorrect.
B) Chill the sample.
Chilling the sample is the correct action to take. This practice is essential for preserving the integrity of the lactic acid measurement, as it minimizes any potential metabolism that could alter the results.
C) Transport the sample at 37°C (98.6°F).
Transporting the sample at body temperature is inappropriate for lactic acid samples. This temperature could promote metabolic activity, leading to inaccurate test results due to increased lactic acid production.
D) Freeze the sample.
Freezing the sample is not recommended for lactic acid testing, as it can cause hemolysis and degrade the sample. Therefore, this option does not preserve the integrity of the lactic acid levels.
Conclusion
Chilling the sample is critical for maintaining the accuracy of lactic acid measurements, making it the only correct option. The other choices either do not apply to lactic acid handling or could compromise the sample's integrity, highlighting the importance of proper specimen management in laboratory testing.