Activated Partial Thromboplastin Time (APTT)
Specimens Requirements:
| Patient Preparation: | None |
| Specimen Type: | Plasma |
| Container / Tube Type: | Sodium Citrate, Blue top, 2.7mL |
| Minimum Volume: | 2.7mL |
| Collection instructions: | To be spun down and aliquot into daughter tube. Both primary and aliquot tube to be sent out chilled. Send to laboratory within 4 hours of collection. |
Sample Stability:
| Ambient (20 – 25°C): | 4 h |
| Refrigerate (2 – 8°C): | NA |

