Turnaround times
The quoted turnaround time is from sample receipt in the laboratory, to results authorisation in the Laboratory Information Management system. The times do not include transport of specimen to the laboratory or the administrative process to print and post/email reports. Service users must allow for transport and reporting time when ordering tests.
Clinical background:
This is a basic test of the plasma coagulation factors, it includes a Prothrombin Time (PT), Activated Partial Thromboplastin Time (APTT) and a Derived Fibrinogen. This allows an estimation of the levels and function of the coagulation factors and is the starting point in the majority of Haemostatic investigations.
Specimen container paediatric:
Light blue – sodium citrate
Specimen container adult:
Light blue – sodium citrate
Minimum volume paediatric:
1.3mL
Minimum volume adult:
2.7mL
Special requirements:
Tube must be correctly filled to line, to ensure correct ratio of blood to anticoagulant, ensure adequate mixing.
Sample stability:
See individual tests
Transport requirements:
Samples should be transported to lab without delay
Freq analysis:
Continuous
Add on test :
[email protected] (external)
Quality assurance:
UK NEQAS Blood Coagulation
Interpretation:
Reference ranges:
See individual tests.
Other info:
Comprises:
Prothrombin Time (PT)
Activated Partial Thromboplastin Time (APTT)
Fibrinogen