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Warfarin Dosing Nomogram for 5 mg Initiation (Crowther) TreeCalc

The EBMcalc module Warfarin Dosing Nomogram for 5 mg Initiation (Crowther) TreeCalc is available in EBMcalc Complete Edition.

This Decision TreeCalc evaluates the following decision points:

After 5 mg warfarin on day 1 check INR on day 2
Check INR on day 3
Check INR on day 4
Check INR on day 5
Check INR on day 6

Decision Tree end points include:

Individulize therapy from here on

References

Crowther MA, Ginsberg JB, Kearon C, et al. A randomized trial comparing 5-mg and 10-mg warfarin loading doses. Arch Intern Med. 1999 Jan 11;159(1):46-8. PubMed ID: 9892329
Kovacs MJ, Rodger M, Anderson DR, et al. Comparison of 10 mg and 5 mg warfarin initiation nomograms together with low-molecular weight heparin for outpatient treatment of acute venous thromboembolism. Ann Intern Med. 2003; 138: 714-9. PubMed ID: 12729425

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