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1 A Labs Coagulation tests

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Question
Answer
PT - Prothrombin Time   11-12.5 seconds (monitors coumadin therapy)  
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INR   2.0 - 3.5  
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PTT - Partial Thromboplastin Time   60-70 seconds (commonly used to evaluate Heparin therapy)(Think H=TT they both have two lateral lines the H of Heparin and the TT of PTT)(So PT monitors Coumdin, and PTT monitors Heparin)  
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APTT-Activated Partial Thromboplastin Time   30-40 seconds (this is the PTT test with activators added to shorten shorten normal clotting time and provide a narrow normal range)(jsut think it is faster so it is about half the time as PTT)  
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Bleeding Time   1-9 minutes (frequently performed on preop patients) (evaluates platelet function and vascular constiction capability)  
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Platelet count   150,000-400,000 (remember this is a high number, we want to have this large number of platelets so our blood clots appropriately when we get a cut or scrape)  
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