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LabCorp defines critical values (or panic values) as laboratory test results that exceed established limit(s) (high or low) as defined by the laboratory for certain analytes as listed in the Critical (Panic) Limits. Critical results are considered life-threatening and require immediate notification of the physician, the physician's representative, the ordering entity, or other clinical personnel responsible for the patient's care.
Note: Abnormal results are not considered critical values. Results that are outside the laboratory's established reference intervals may be considered abnormal, but the terms "abnormal" and "critical" should not be used interchangeably.
Click to view LabCorp's list of Panic (Critical) Values.