Section 5.11
Clinical Chemistry Problem Solving

Analysis of normal and abnormal QCs performed at the beginning of the evening shift revealed a 2_2s error across levels for triglyceride. Both controls were within the 3s limit. The controls were assayed again, and one control was within the acceptable range and the other was slightly above the 2s limit. No further action was taken and the patient results that were part of the run were reported. Which statement best describes this situation?

Appropriate operating procedures were followed Remedial evaluation should have been taken, but otherwise, the actions were appropriate Corrective action should have been taken before the controls were repeated The controls should have been run twice before reporting results