4 Laboratory Test & Monitoring

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11 Terms

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Complete Blood Count (CBC)
Includes Hb (hemoglobin), Hct (hematocrit), WBC (white blood cell count), platelets
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Clotting times
PT, PTT, INR
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Other labs for coagulation
Liver function (AST, ALT), calcium, fibrinogen (high = more clots, low = less clots)
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Platelet Count
Monitors number of platelets
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Partial Thromboplastin Time (PTT/APTT)
Measures activity of the intrinsic and final common pathways; normal = ~30 seconds
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Prothrombin Time (PT)
Measures activity of the extrinsic and final common pathways; normal = ~12 seconds
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International Normalized Ratio (INR)
Standardizes evaluation of extrinsic pathway; normal = 1
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Normal Lab Value - White Blood Cell

4,500-11,000 cells/μL

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Normal Lab Value - Hemoglobin

Males: 13.5-17.5 g/dL Females: 12.0-15.5 g/dL

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Normal Lab Value - Hemocrit (RBC %)

Males: 38.8-50% Females: 34.9-44.5%

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Platelet Count

150,000-400,000 cells/μL