If a patient's INR is twice the control value, this finding most likely indicates which of the following?

If a patient's INR is twice the control value, this finding most likely indicates which of the following?

• A. Therapeutic effect
• B. Increased risk of bleeding
• C. No effect
• D. Need to increase dose

Answer: (D)

When the INR is twice the control value, the blood’s tendency to clot is reduced far more than intended. This reflects over-anticoagulation, which greatly raises the risk of bleeding, including serious or life-threatening bleeds. The appropriate response is to adjust downward, not upward—for example, hold or reduce the anticoagulant dose and recheck the INR within a day or two to bring it back into the target therapeutic range. So, this finding signals an increased bleeding risk due to excessive anticoagulation, rather than a therapeutic effect or no effect. Increasing the dose would worsen the situation.

When the INR is twice the control value, the blood’s tendency to clot is reduced far more than intended. This reflects over-anticoagulation, which greatly raises the risk of bleeding, including serious or life-threatening bleeds. The appropriate response is to adjust downward, not upward—for example, hold or reduce the anticoagulant dose and recheck the INR within a day or two to bring it back into the target therapeutic range.

So, this finding signals an increased bleeding risk due to excessive anticoagulation, rather than a therapeutic effect or no effect. Increasing the dose would worsen the situation.