Specimen Collection

Citrated platelet poor plasma. Minimum volume 0.5 mL.

1.8 mL Paediatric Citrate Blood

• Tube must be adequately filled.

2.7 mL Citrate Blood

or

Reference Intervals
Units: Seconds

Age Range	Either Sex
All	17 - 23[1]

[1]

• Uncertainty of Measurement: 16%

Turnaround Time: Within 4 hours

Test performed on weekdays.

Diagnostic Use and Interpretation

Reptilase is a thrombin like enzyme isolated from the venom of the snake Bothrops atrox. Reptilase converts fibrinogen to fibrin but is not subject to the effects of heparin. The Reptilase Time is used to confirm the presence of dysfibrinogenaemia, or in the investigation of a prolonged thrombin clotting time where the cause is not established by more economical tests.

Thrombin Time	Reptilase Time	Cause
Prolonged	Prolonged	Hypo or dysfibrinogenaemia
Prolonged	markedly Prolonged	Dys or Afibrinogenaemia
Prolonged	Normal	Heparin

Also See

Thrombin Clotting Time

Contact Information

For further information contact the Haematology laboratory (Ext 22067) or:

Dr Nicola Eaddy	Ext 22005
Dr Peter Bradbeer	Ext 22062
Dr Anna Ruskova	Ext 22137
Dr Nikhil Rabade	Ext 22071

Last updated at 13:09:28 11/09/2024