Read LabGuide 23 and be able to:

1. State the specimen of choice for coagulation testing.
2. Discuss the specific requirements associated with a sodium citrate blood collection tube when collected for coagulation testing.
3. Explain the quality control requirements of both manual and automated coagulation testing, and the corrective action steps that are necessary if control results are unacceptable.
4. State the maintenance and calibration/recalibration requirements of automated coagulation instruments.