Blood disorders/heme Flashcards
1
Q
bleeding time: normal value, assessment
A
- 3-10 minutes
- plt function: ability to form platelet plug
2
Q
plt count: normal value, assessment
A
- 150,000-400,000
- number not function; vascular integrity
3
Q
PT: normal value, assessment
A
- 10-14 sec
- extrinsic (III, VII) and common pathways (I, II, V, X, XIII)
4
Q
INR: normal value, assessment
A
- 1
- target with coumadin tx: 2-3
- standardizes PT results, extrinsic and common pathways
- specifically used to monitor coumadin
5
Q
aPTT: normal value, assessment
A
- 25-35 sec
- intrinsic (VIII, IX, XI, XII) and common pathways (I, II, V, X, XIII)
6
Q
ACT: normal value, assessment
A
- 90-120 sec
- intrinsic and common pathways
- specifically used to monitor action of heparin
7
Q
Thrombin time: normal value, assessment
A
- 9-14 sec
- time for fibrin clot to form
- prolonged with low levels of fibrinogen
- factors I, II
8
Q
fibrinogen: normal value, assessment
A
- 160-350
- factor I
9
Q
Coumadin inhibits which vitamin K dependent clotting factors?
A
- II, VII, IX, X
