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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Platelet Normal Value: |
150 - 400 x 10^9/L 150,000 - 400,000 plts/cumm |
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Platelets <100,000/uL |
Abnormally Low |
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Platelets 30,000-50,000/uL |
Bleeding w/ possible trauma |
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Platelets <30,000/uL |
Spontaneous Bleeding Possible |
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Platelets <5,000/uL |
Severe Spontaneous Bleeding |
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Normal Value for Platelet Adhesiveness (Salzmann) |
26-60% |
Dec in vWD |
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Normal Value for Stefanini Method of CRT |
Clot Retration Appreciable w/in 1 Hr Complete w/in 18-24 Hrs |
3-5 mL of Blood Incubation: 37C |
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Normal Value for MacFarlane Method of CRT |
44-67% |
5 mL of Blood Incubation: 37C for 1 Hr |
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Normal Value for Platelet Estimate |
20-80 Plts/OIF |
Conversion Factor: 20,000 |
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Common Dilution for Manual Plt Count |
1:100 |
Plts <50 = 1:20 Plts >500 = 1:200 *Phase Contrast Microscope |
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In Automation, platelets are enumerated as particles w/ size of |
2-20 fL |
Dec in Platelet Satelitism (Inc WBC Count) |
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Determine ability of platelets to resist pressure |
Capillary Fragility Test/ Tourniquet/ Rumpel Leede's Test |
1. Inflate BP Cuff to point halfway b/w systolic & diastolic pressures (never exceed 100 mmHg) maintain pressure for 5 mins 2. Remove BP Cuff and wait 5-10 mins, before counting patechiae |
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CFT Grading |
1+ Few 2+ Many 3+ Multiple 4+ Confluent |
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