# A client with a mechanical mitral valve had warfarin-associated retroperitoneal bleeding with shock and INR 6.8. Warfarin was held, authorized 4-factor PCC and vitamin K were administered, and source control was completed. Review the post-reversal trend and select the best interpretation and ongoing medication plan.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=522052&lang=en  
> language: en  
> subject: Adverse Effects/Contraindications/Interactions  
> category: PPT

## Question

A client with a mechanical mitral valve had warfarin-associated retroperitoneal bleeding with shock and INR 6.8. Warfarin was held, authorized 4-factor PCC and vitamin K were administered, and source control was completed. Review the post-reversal trend and select the best interpretation and ongoing medication plan.

| Time | Data |
| --- | --- |
| Presentation | BP 84/48 mm Hg; hemoglobin 7.6 g/dL; INR 6.8; creatinine 1.0 mg/dL; expanding retroperitoneal hematoma |
| 6 hours | PCC and vitamin K administered; BP 102/60 mm Hg; hemoglobin 8.4 g/dL after transfusion; INR 1.4; creatinine 2.2 mg/dL |
| 48 hours | BP 118/70 mm Hg; hemoglobin 9.1 g/dL and stable; INR 1.2; creatinine 1.3 mg/dL; repeat imaging shows no expansion |

Q1. How should the hemostatic response be interpreted?

Improving perfusion and bleeding control with recovering renal function
Progressive uncontrolled hemorrhage despite reversal
Complete valve protection because the INR is low

Q2. Which ongoing plan is appropriate?

Permanently stop anticoagulation without specialist review
Restart the previous full warfarin dose immediately
Use a documented valve and bleeding-team plan for anticoagulation resumption after hemostasis

## Explanation

Hemodynamics, hemoglobin, INR, renal function, and imaging are improving, indicating hemostatic response. The mechanical mitral valve remains a high-risk thrombotic indication, so anticoagulation resumption requires a documented specialist plan rather than permanent unplanned discontinuation.

## In-depth explanation

Quick answer
The bleed is improving, but the valve indication remains.

Why this is correct
Normalized perfusion and stabilized hemoglobin support bleeding control. A mechanical mitral valve still requires VKA-based long-term protection, so restart timing and bridging decisions must be individualized after hemostasis.

Easy analogy or mental picture
The emergency brake worked, but the long-term anti-clot engine still has to be restarted safely.

Memory hook
Hemostasis achieved does not mean anticoagulation indication erased.

NCLEX decision rule
Evaluate bleeding control and thrombotic need together before documenting the next phase.

Why the other choices are wrong
Immediate full-dose restart ignores rebleeding risk, while permanent discontinuation without a plan ignores valve thrombosis risk.References
1DailyMed: Warfarin SodiumMajor bleeding, INR monitoring, pregnancy and mechanical-valve risk, and therapy individualization
2ACC/AHA 2020 Valvular Heart Disease GuidelineVKA therapy for mechanical valves, pregnancy counseling, and monitored anticoagulation planning

## Clinical scenario

Post-reversal monitoring
Evaluate hemodynamics, hemoglobin, INR, renal function, bleeding control, and the unresolved thrombotic indication before deciding the next anticoagulation step.

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