1
Q
- Measures extrinsic pathway.
- Increased clotting time suggests deficiencies or inhibitions of clotting factors
A
PT (prothrombin time
2
Q
- Ratio of pt’s PT/mean normal PT
- Extrinsic pathway
A
IINR (international Normalized Ratio)
3
Q
- Measures intrinsic pathway
- Used to monitor Heparin
A
(a)PTT ((activated) partial thromboplastin time)
4
Q
- Presence suggests that a fibrin clot was formed and subsequently dissolved
- Sensitive for DIC, VTE, DVT, PE, but not specific
A
D-Dimer
5
Q
-Follow up to prolonged PT or PTT to assess whether abnormal result is due to factor deficiency or inhibition
A
Mixing Study
6
Q
-Assess for autoimmune hemolytic anemia
A
Direct Coomb’s Test
7
Q
- Used to test for transfusion compatibility
- Pt’s blood mixed with typed RBCs, looking for agglutination
A
Indirect Coomb’s Test
BCP 2
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