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Related Concept Videos

Diabetic Ketoacidosis ll: Pathophysiology01:22

Diabetic Ketoacidosis ll: Pathophysiology

Diabetic ketoacidosis (DKA) is a metabolic emergency characterized by hyperglycemia, ketonemia, and metabolic acidosis. It results from severe insulin deficiency and an excess of counterregulatory hormones, leading to uncontrolled lipolysis, ketogenesis, and widespread electrolyte and fluid disturbances.Pathophysiology The central event in DKA is a profound loss of insulin action. Without insulin, glucose uptake in insulin-dependent tissues is impaired, while hepatic glucose production...
Diabetic Ketoacidosis l: Introduction01:25

Diabetic Ketoacidosis l: Introduction

DefinitionDiabetic ketoacidosis (DKA) is an acute, life-threatening complication of diabetes mellitus, characterized by a triad of hyperglycemia (blood glucose >250 mg/dL), ketonemia or ketonuria, and metabolic acidosis (arterial pH <7.30 and serum bicarbonate <18 mEq/L). It results from insulin deficiency combined with elevated levels of counterregulatory hormones—glucagon, catecholamines, cortisol, and growth hormone—leading to increased lipolysis, hepatic ketone production, and...
Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

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...
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

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...
Hypoglycemia01:26

Hypoglycemia

Hypoglycemia is a blood glucose level below 70 mg/dL. It commonly occurs in individuals using insulin or insulin-secreting drugs, but may also arise in non-diabetic conditions. People with type 1 diabetes are at the highest risk because they depend on exogenous insulin. People with type 2 diabetes are also at risk, especially when treated with insulin or medications such as sulfonylureas, which increase insulin release regardless of blood glucose levels. It develops when insulin levels exceed...

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Related Experiment Video

Updated: Jun 26, 2026

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
08:11

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique

Published on: November 11, 2022

Drug-induced hypokalaemia.

Chaker Ben Salem1, Houssem Hmouda, Kamel Bouraoui

  • 1Department of Clinical Pharmacology, Faculty of Medicine of Sousse, Sousse, Tunisia. bensalem.c@gmail.com

Current Drug Safety
|January 20, 2009
PubMed
Summary

Drug-induced hypokalaemia is a frequent clinical issue, especially in elderly patients. Always review medication history to diagnose and manage this common electrolyte imbalance.

Area of Science:

  • Clinical Medicine
  • Pharmacology
  • Electrolyte Imbalance

Background:

  • Hypokalaemia, defined as plasma potassium <3.5 mEq/L, is a common clinical finding.
  • Medications are a frequent cause of both symptomatic and asymptomatic hypokalaemia.
  • This condition poses significant risks, particularly for elderly individuals and those with comorbidities like cardiovascular, renal, or hepatic disease.

Purpose of the Study:

  • To highlight the prevalence and significance of drug-induced hypokalaemia.
  • To emphasize the diagnostic challenges posed by numerous potential causes of hypokalaemia.
  • To underscore the importance of considering medication history in patient evaluation.

Main Methods:

  • Review of clinical practice data and literature concerning hypokalaemia.

Related Experiment Videos

Last Updated: Jun 26, 2026

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
08:11

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique

Published on: November 11, 2022

  • Analysis of drug-induced aetiologies of electrolyte abnormalities.
  • Clinical case study review focusing on diagnosis and management.

    • Main Results:

    • Medications frequently precipitate hypokalaemia, even within therapeutic ranges.
    • Overdose or drug intoxication can exacerbate or cause hypokalaemia.
    • The diverse causes of hypokalaemia can lead to underdiagnosis of drug-induced cases.

    Conclusions:

    • Physicians must remain vigilant for drug-induced hypokalaemia as a common side effect.
    • Thorough medication history review is crucial for diagnosing and managing hypokalaemia.
    • Early identification and intervention are key to preventing complications of hypokalaemia.