A client with post-MI HFrEF has a new eplerenone prescriptio… | MyMerci
Adverse Effects/Contraindications/Interactions PPT
Question

A client with post-MI HFrEF has a new eplerenone prescription. Potassium is 5.8 mEq/L and creatinine clearance is 28 mL/min. Which action should the nurse take?

Explanation
Eplerenone is contraindicated at initiation when potassium exceeds 5.5 mEq/L or creatinine clearance is 30 mL/min or less.
Next question on this topicA nurse is reviewing the morning lab results for an adult client receiving warfarin for at…

In-depth explanation

Quick answer
Hold and clarify because both potassium and renal contraindications are present.

Why this is correct
Eplerenone blocks mineralocorticoid effects and can raise potassium. Current labeling requires baseline potassium and renal assessment and lists these values as contraindications.

Easy analogy or mental picture
The drug closes a potassium exit pathway; high potassium and low clearance make the room unsafe before the first dose.

Memory hook
Eplerenone start: potassium 5.5 or lower and CrCl above 30.

NCLEX decision rule
Check hard contraindication thresholds before applying the heart-failure benefit.

Why the other choices are wrong
Dose reduction or delayed monitoring does not override two initiation contraindications, and potassium supplementation worsens risk.
References
1DailyMed: EplerenonePotassium and renal contraindications, monitoring, and post-MI HFrEF therapy

Clinical scenario

Mineralocorticoid antagonist check
Verify potassium, creatinine clearance, ACE or ARB use, NSAIDs, supplements, CYP3A inhibitors, blood pressure, and monitoring dates.
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For study reference only. Always follow current clinical guidelines and your institution’s protocols.