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Lab Value Patho Range/ Critical Value What’s Normal? What’s…

 

Lab Value Patho Range/ Critical Value What’s Normal? What’s abnormal? Significance? Treatments Nursing Considerations
12 PTT Prothrombin time measures the amount of time needed to form a clot. 25-35 sec Increased could indicate deficiency in vitamin K, deficiency in clotting factor, liver disease    
13 INR INR is calculated from the prothrombin time and is used to monitor oral anticoagulants such as warfarin Not on warfarin <1 sec

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On warfarin 2-3 sec

Numbers are low = clots will grow, warfarin therapy numbers are too high = patient could die    
14 aPTT aPTT measures how long it takes for a blood clot to form. It is aso used to monitor effectiveness of the anticoagulant heparin. Not on heparin 30-40 sec

On heparin 47-70 sec

Hypercoagulable numbers are lo = clots will grow, heparin therapy numbers are too high= patient could die

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