Question 27

The specimen should be kept away from direct light.

To ensure an accurate bilirubin test result, the specimen must be protected from direct light, as exposure can lead to the breakdown of bilirubin and inaccurate readings.

A) The specimen should be chilled.

Chilling the specimen is not necessary for bilirubin testing. While some tests require chilled specimens to preserve certain analytes, bilirubin levels are not affected by chilling, making this option incorrect.

B) The specimen should be kept away from direct light.

This option is correct because bilirubin is sensitive to light, and exposure can cause photodegradation, leading to falsely low bilirubin levels in the test results. Therefore, protecting the specimen from light is crucial for accurate testing.

C) The specimen should be spun down and frozen.

Spinning down the specimen is typically unnecessary for bilirubin testing, and freezing the specimen can also impair the test results. Thus, this option is not appropriate for ensuring accurate bilirubin levels.

D) The specimen should be placed on a warming block.

Warming the specimen is not recommended for bilirubin testing, as it does not contribute to the accuracy of the results and may cause other issues. Hence, this option is incorrect.

Conclusion

Keeping the specimen away from direct light is essential for obtaining accurate bilirubin test results due to bilirubin's sensitivity to light exposure. Options A, C, and D do not address the critical requirement of light protection, making them unsuitable for ensuring accurate testing outcomes. Therefore, Option B is the definitive correct choice.