Act 1&4 Flashcards
_____: non specific test; it is the time it takes for a standard wound to stop bleeding
dependent on:
1. # of platelets present during vascular injury or any bleeding
2. integrity of blood vessels
3. presence of coagulation factors from Factor I-XIII
BLEEDING TIME
dependent on:
1. Platelet plug formation
2. Vasoconstriction
3. Coagulation
BT: IVY METHOD
1. site
- depth = ____ (deep) & ____ (long)
2. inflate up to ___
3. RV
BT: DUKE METHOD:
1. site
2. depth
3. RV
IVY METHOD:
1. forearm
- 2mm deep & 2mm long
2. 40mmHg
3. 1-7mins
DUKE METHOD:
1. earlobe
2. 3mm
3. 2-4mins
Clinsig of BT
1. platelet reduction (3)
2. platelet deficiency (2)
3. injury capillary wall (3)
Clinsig of BT
1. platelet reduction
- Thrombocytopenic purpura
- Acute leukemia
- Aplastic anemia
2. platelet deficiency (2)
- Disease of the liver
- Hemolytic disease of newborn
3. injury capillary wall (3)
- Scurvy (defects w/ VitC)
- Toxin
- Allergy
Other Tests for BT
1. punctured finger is immersed in a beaker of NSS pre warmed at 37C waterbath.
2. almost the same procedure w/ Copley-Lalitch
3. overdosage of aspirin prolongs bleeding time
- aka
- for ___ days
- before and after taking 2 tablets, ___ method will be performed
- Copley-Lalitch Immersion Test
- Adelson-Crossby Immersion Test
- Aspirin Tolerance Test
- Quick’s Test
- 3 days
- Duke Method
CFT: Tourniquet Test
RUMPEL-LEEDE TEST
1. apply ____ pressure
2. maintain for ___
3. results
4. RV
5. possible clinsig: (3)
QUICK’s METHOD
1. apply ___ pressure
2. RV
GOTHLIN’s METHOD
1. both arms and apply ____ pressure
2. multiply the number of petechiae in both arms by __
3. RV
RUMPEL-LEEDE TEST
1. 100mmHg
2. 5mins
3. results:
- +1 = few anterior of arm
- +2 = many anterior of arm
- +3 = multiple whole arm and back of the hand
- +4 = confluent whole arm and back of the hand
2. 0-1+
3. thrombocytopenia, senile purpura, vascular purpura
QUICK’s METHOD
1. 100mmHg
2. 0-5 petechiae within circular radius of 5cm
GOTHLIN’s METHOD
1. 35mmHg
2. 2
3. 0-8 petechiae
CFT: Hess/ Suction Test
1. aka
2. apply ____ pressure
3. RV
4. ___ = test must be repeated
- Petiochiometer Method
- 200mmHg
- 0-2
- 4-8
- tiny pinpoint red or purple dots; hemorrhages seen in the skin
- diameter - red or purple patches; lesions of skin caused by RBCs that seeped out of blood vessels
- diameter - flat and purplish; usually seen after trauma and injury
- diameter - collection of blood outside the blood vessels
- Petechiae
- <3mm - Purpura
- >3mm - Ecchymosis
- >1cm - Hematoma
BLEEDING DISORDERS
1. due to(4)
Laboratory Findings in Vascular Defects:
1. normal in
2. platelet count (2)
BLEEDING DISORDERS
1. Vascular defects
2. Platelet defects
3. Coagulation factor defects
4. Presence of circulating anticoagulants
Laboratory Findings in Vascular Defects:
1. ALL
2. prolonged bleeding time; positive tourniquet test