A 72-year-old client on warfarin for atrial fibrillation has serial INR results and bleeding observations recorded. Review the trend and choose the priority interpretation and action.
Trend
Choose your responses, then check the answer.
Explanation
Trend interpretation INR climbs from 2.5 to 9.2 across 12 days while bleeding progresses from none to gum bleeding to epistaxis to hematuria and melena. The trajectory is deteriorating with major bleeding. Hold warfarin, give vitamin K, prepare blood products, and notify the provider immediately.
Step 1 — Read INR Therapeutic INR for atrial fibrillation is 2.0 to 3.0. Day 0 INR 2.5 is in range. Day 7 INR 4.1 is supratherapeutic with mild bleeding. Day 10 INR 6.8 is markedly elevated with active epistaxis. Day 12 INR 9.2 with hematuria and melena is major bleeding with critical INR.
Step 2 — Read bleeding Mild gum bleeding → frank epistaxis → hematuria and melena is a progressive bleeding cascade. Melena and hematuria mark major bleeding requiring reversal.
Step 3 — Choose priority response For major bleeding with INR over 9 the standard is: hold warfarin, give vitamin K (IV for major bleeding), prepare 4-factor PCC or fresh frozen plasma, type and screen, and notify the provider. Continuing warfarin or merely repeating INR delays definitive care.
Key concept NCLEX rewards reading INR alongside the patient. Lab plus bleeding equals action; lab alone may not.
Scenario72-year-old female on warfarin for atrial fibrillation (target INR 2.0 to 3.0). Serial clinic and ED visits over 12 days produce both INR values and bleeding observations.
ConcernThe INR is rising rapidly while bleeding progresses. The most recent ED visit shows hematuria and melena with INR 9.2.
BackgroundAnticoagulation guidelines distinguish supratherapeutic INR without bleeding from major bleeding, which always warrants reversal.
Therapeutic INR window — For most atrial fibrillation indications, target INR is 2.0 to 3.0. Mechanical mitral valves target 2.5 to 3.5.
Major bleeding criteria — Bleeding that is fatal, occurs at a critical site (intracranial, retroperitoneal, intraocular), causes hemoglobin drop of 2 or more, or requires transfusion. Always warrants warfarin reversal.
Warfarin reversal options — Vitamin K (oral if no bleeding, IV for major bleeding); 4-factor PCC for rapid reversal in major bleeding; fresh frozen plasma is an alternative when PCC is unavailable.