APTT
The Activated Partial Thromboplastin Time (APTT) measures the activity of the intrinsic and common pathways of the coagulation cascade. The APTT is used as a part screen for the assessment of normal coagulation. It is also used in the monitoring of unfractionacted heparin therapy with the results usually expressed as an APTT ratio
| Tube | 05 (CP) - Citrate |
|---|---|
| ID | Tests&Tubes0013 |
| Additional Information | This test can only be added to samples within 4 hours of collection. |
| Turn Around | A&E: N/A Day Case: 6 Hours In-Patient: 6 Hours Out-Patient: 24 Hours GP: 24 Hours |
| Send to | Blood Sciences Cross Site |
| Contact | For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net. |
| Collection Con | Citrate tube must be filled to the fill line. Instructions for Lab Staff: Standard lab processing- No special requirements. |
| Sample REQ | Blood |
| Ref. Range Notes | Blood Sciences Refernce ranges available through the useful information and links page: https://www.leedsth.nhs.uk/a-z-of-services/pathology/blood-sciences/useful-information-and-links/ |
| Telepath | Data entry set(s)As APTT for heparinLGI: APTT1LSJUH: APTT1JAs coagulation screenLGI: CSC2LSJUH: CSC2JAs INR/APTT for warfarin and heparinLGI: HW1LSJUH: HW1J |
| ICE Codes | As APTT for heparin: APTT1LAs INR/APTT for warfarin and heparin: HW1LAs coagulation screen: LCS |
