| Activated Partial Thromboplastin Time | 763X |
|
 |
||
| CPT Code(s): 85730 | Clinical Significance: aPTT measures part of the coagulation cascade. Prolonged aPTT may be caused by heparin and other anticoagulants, factor deficiencies, or inhibitors such as lupus anticoagulants. |
|
| Specimen Container: 3.2% Sodium Citrate (light blue-top) |
| Preferred Specimen: 1 mL plasma (0.3 mL minimum) |
| Instructions: Do not thaw. See Specimen Collection Section, Coagulation Testing. Hemolyzed specimens are not acceptable. |
| Transport Temperaturer: Frozen |
| Reference Range: 22-36 seconds |
| Reject Criteria: Received room temperature; Received refrigerated; Hemolysis |
