PT
- 1
Prothrombin Time
Definition:
Tissue factor substitute
(thromboplastin)
Phospholipid substitute for PF3
Reagents:
Procedure:
0.025 M CaCl2
Reagents and specimen at 37oC
Timer starts when reagent added to
specimen
Timer stops when fibrin strand
detected
Factors
measured:
Click on computer to
see cascade theory --
