Related Experiment Video
Updated: Feb 3, 2026
10:36
A Novel Feeder-free System for Mass Production of Murine Natural Killer Cells In Vitro
Published on: January 9, 2018
7.6K
Treating potassium disturbances: kill the killers but avoid overkill
R Vanholder1, W Van Biesen1, E V Nagler1
1a Nephrology Section, Department of Internal Medicine , University Hospital Ghent , Belgium.
Acta Clinica Belgica
|October 25, 2018
Summary
This review covers hypokalemia and hyperkalemia, detailing their symptoms, causes, and treatments. Severe potassium level changes require emergency care, while other cases focus on addressing underlying causes.
Area of Science:
- Nephrology
- Internal Medicine
- Cardiology
Background:
- Hypokalemia and hyperkalemia are common electrolyte imbalances.
- Potassium levels are critical for cellular function and cardiac rhythm.
Purpose of the Study:
- To provide a comprehensive overview of hypokalemia and hyperkalemia.
- To outline diagnostic and therapeutic strategies for managing potassium disorders.
Main Methods:
- Review of existing literature on potassium balance.
- Development of diagnostic algorithms and summary tables.
Main Results:
- Severe hypokalemia (<2.5 mmol/L) and hyperkalemia (>6.5 mmol/L) are life-threatening.
- Symptoms, ECG changes, aggravating factors, and rapid shifts necessitate emergency treatment.
Conclusions:
- Focus on correcting underlying causes for non-emergent potassium imbalances.
- New potassium binders are available, but their added benefit needs further study.
Related Concept Videos
02:26Ecological Disturbance
21.1K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
21.1K
01:14Frustration and Conflict: Avoidance-Avoidance, Double-Approach Avoidance
680
Avoidance-avoidance conflict refers to a psychological situation where a person must choose between two or more unpleasant alternatives. These conflicts are particularly stressful because neither option is desirable. This dilemma is often expressed in sayings like "caught between a rock and a hard place" or "between the devil and the deep blue sea." For instance, individuals who fear dental procedures may find themselves torn between enduring a painful toothache or facing the...
680
01:29Disturbances in Heart Rhythm
3.0K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
3.0K
01:26Regulation of Sodium and Potassium
2.3K
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...
2.3K
01:26Personality Disorders: Narcissistic and Avoidant
805
Narcissistic and avoidant personality traits represent two contrasting patterns of behavior that significantly influence social interactions and self-perception. While individuals with narcissistic disorder seek admiration and validation, individuals with avoidant personality disorder withdraw due to fear of judgment.
Characteristics of Narcissistic Personality Disorder
Narcissistic individuals exhibit an inflated sense of self-importance and an excessive need for admiration. They are often...
Characteristics of Narcissistic Personality Disorder
Narcissistic individuals exhibit an inflated sense of self-importance and an excessive need for admiration. They are often...
805
01:14Avoidance Learning and Learned Helplessness
2.6K
Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
2.6K