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StatPearls, LLC

  • Acute Kidney Injury
  • Diuretics, Potassium Sparing
  • Hyperkalemia
  • Muscle Weakness
  • Renal Insufficiency, Chronic

Hyperkalemia

Hyperkalemia is a condition characterized by a serum or plasma potassium concentration exceeding the upper normal limit, typically greater than 5.0 to 5.5 mEq/L. Etiologic factors include impaired renal excretion, excessive potassium intake, and medications that disrupt potassium homeostasis, such as potassium-sparing diuretics and renin-angiotensin-aldosterone system inhibitors. Risk is increased in chronic kidney disease, adrenal insufficiency, and acute kidney injury. Hyperkalemia disturbs the resting membrane potential of excitable cells, particularly cardiac myocytes, predisposing to life-threatening arrhythmias, conduction abnormalities, and neuromuscular manifestations, including muscle weakness or paralysis. Clinical presentation varies with the absolute potassium level and the rate of change. Patients with chronic elevations, such as those with chronic kidney disease, may remain asymptomatic at higher potassium levels, whereas acute shifts can produce severe symptoms at lower concentrations. Infants exhibit higher baseline potassium levels than children and adults. Diagnosis relies on accurate measurement of serum potassium, with confirmation to exclude pseudohyperkalemia. Prompt intervention is essential to prevent fatal complications. Management strategies include membrane stabilization, intracellular potassium shifting, and enhanced potassium elimination through pharmacologic or renal therapies, tailored to the primary etiology and severity. This activity for healthcare professionals is designed to sharpen learners’ skills in evaluating and managing hyperkalemia. Participants will deepen their understanding of the condition’s etiology, risk factors, pathophysiology, clinical presentation, and evidence-based diagnostic and therapeutic recommendations. Enhanced competence will empower clinicians to collaborate with interprofessional teams caring for individuals with this electrolyte abnormality.

Credit & MOC Details

Credit information is provided by the course provider. We recommend confirming credit eligibility with the provider or your licensing board before starting the activity.

Credit types

IPCE CreditsUp to 1.5 creditsAAPA Category 1 Credit™Up to 1.5 creditsAMA PRA Category 1 Credit™Up to 1.5 creditsNursingUp to 1.5 creditsPharmacyUp to 1.5 credits

MOC types

ABS — Accredited CMEUp to 1.5 pointsABPATH — Lifelong LearningUp to 1.5 pointsABA — Lifelong LearningUp to 1.5 pointsABTS — Accredited CMEUp to 1.5 pointsABIM — Medical KnowledgeUp to 1.5 pointsABS — Self-AssessmentUp to 1.5 pointsABP — Lifelong Learning and Self-AssessmentUp to 1.5 pointsABTS — Self-AssessmentUp to 1.5 points

FDA REMS

No

Qualifies for MIPS

No

Target Specialties

Cross-Specialty

Relevant across 11 specialties.

Pricing

Fee varies

This provider typically $49–98

See fees on statpearls.com

Listed by the provider

  • Article / monograph / reference
  • Credit · Up to 1.5 credits
  • MOC · Up to 1.5 points
  • Fee varies · this provider typically $49–98
  • Released
    Sep 1, 2026
  • Last day to claim credit
    Sep 1, 2029 3 years left

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