Key result
Fingerstick prothrombin time measurement demonstrated less variability and erroneously indicated dosage changes less often than routine laboratory methods.
Why the study?
Does fingerstick prothrombin time measurement improve reliability and reduce erroneous dosage changes compared to routine laboratory methods in patients on stable warfarin therapy?
Population
33 patients receiving warfarin with stable anticoagulation for 3 months preceding the study, at a…
Comparison
Fingerstick prothrombin time measurement vs Routine laboratory prothrombin time measurement
Design
Cohort
Authors
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May support fingerstick prothrombin time in stable warfarin patients; hypothesis-generating and requires randomized confirmation before practice change.
Cohort (n=33)
No
Does fingerstick prothrombin time measurement improve reliability and reduce erroneous dosage changes compared to routine laboratory methods in patients on stable warfarin therapy?
Fingerstick prothrombin time measurement is more reliable and less likely to prompt erroneous warfarin dosage changes than routine laboratory testing in stable patients.
Bussey et al. (1997) conducted a cohort in Stable anticoagulation on warfarin (n=33). Fingerstick prothrombin time measurement vs. Routine laboratory prothrombin time measurement was evaluated on Correlation, agreement, variability, and erroneous dosage change indications. Fingerstick prothrombin time measurement demonstrated less variability and erroneously indicated dosage changes less often than routine laboratory methods.
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