Related Experiment Video
Updated: Sep 13, 2025
08:11
Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
Published on: November 11, 2022
3.0K
Hyperkalemia Caused by Potassium-Enriched Salt in a Hospitalized Patient
Masayoshi Kusunoki1, Tatsuya Fujihara2,1, Ryosuke Ishida1
1Division of Emergency and Critical Care, Shimane Prefectural Central Hospital, Izumo, JPN.
Cureus
|July 28, 2025
Summary
Patients with chronic kidney disease (CKD) should monitor potassium intake, as potassium-enriched salt substitutes can cause dangerous hyperkalemia. Unregulated dietary supplements pose risks, especially for those with impaired renal function.
Area of Science:
- Nephrology
- Internal Medicine
- Clinical Case Study
Background:
- Hyperkalemia is a critical condition, especially for patients with chronic kidney disease (CKD).
- Potassium-enriched salt substitutes, promoted for hypertension, risk adverse effects in renal impairment.
Observation:
- An 88-year-old male with CKD developed severe, asymptomatic hyperkalemia (7.5 mEq/L) during hospitalization.
- The patient unknowingly consumed a potassium-enriched salt substitute, leading to elevated serum potassium levels.
Findings:
- The patient's renal function had previously declined due to septic and prerenal acute kidney injury.
- Treatment with glucose-insulin therapy, IV fluids, diuretics, and sodium polystyrene sulfonate normalized potassium levels.
Implications:
- Highlights the necessity of monitoring dietary potassium sources in hospitalized CKD patients.
- Stresses the importance of educating patients and caregivers about risks associated with dietary supplements, particularly potassium-based salt substitutes.
Keywords:
acute kidney injuryckd(chronic kidney disease)hyperkalemiahypertensionpotassium-enriched saltMore Related Videos
Related Concept Videos
01:28Antihypertensive Drugs: Potassium-Sparing Diuretics
773
Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
773
01:20Acute Kidney Injury V: Interprofessional Care
45
Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
45
01:24Roles of Electrolytes: Sodium and Potassium
709
Sodium plays a crucial role in maintaining fluid and electrolyte balance and overall bodily homeostasis. Sodium balance is primarily regulated by kidney function, which adjusts sodium elimination to match dietary intake and maintain proper electrolyte levels. Sodium is the most abundant cation in the extracellular fluid (ECF) and is found in salts such as sodium chloride (NaCl) and sodium bicarbonate (NaHCO3). Although cellular plasma membranes are relatively impermeable to sodium, its role in...
709
01:22Acute Kidney Injury VI: Nursing Management
61
Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
61
01:26Regulation of Sodium and Potassium
851
The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP).
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
851
01:19Ionic Strength: Effects on Chemical Equilibria
1.7K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
In this solution, the primary...
1.7K