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Related Concept Videos

Ionic Bonds00:42

Ionic Bonds

135.1K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
135.1K
Regulation of Sodium and Potassium01:26

Regulation of Sodium and Potassium

2.8K
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...
2.8K
Regulation of Water Intake01:25

Regulation of Water Intake

3.0K
Osmolality refers to the number of solute particles per kilogram of solvent in a solution. Plasma osmolality specifically indicates the total number of solute particles per kilogram of water in blood plasma. This value reflects the body's hydration status and is tightly regulated through mechanisms controlling water intake and output. While water consumption is a conscious decision, the body has intrinsic regulatory systems to maintain fluid balance. Dehydration, a state of water deficit...
3.0K
Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

2.6K
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...
2.6K
Disorder of Water Balance01:29

Disorder of Water Balance

2.8K
Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
2.8K
Tonicity in Animals01:16

Tonicity in Animals

9.3K
Tonicity describes the amount of solute in a solution. The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three terms—hypotonic, isotonic, and hypertonic—are used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. In a hypotonic solution, such as tap water, the extracellular fluid has a lower concentration of solutes than the fluid inside...
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Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
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[News on hyponatremia].

Wiebke Fenske, Mirjam Christ-Crain

    Deutsche Medizinische Wochenschrift (1946)
    |March 9, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Hyponatremia, a common electrolyte disorder, carries severe risks from the condition and its treatment. This review covers new findings and the first European guideline for managing hyponatremia.

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    Area of Science:

    • Internal Medicine
    • Nephrology
    • Endocrinology

    Context:

    • Hyponatremia is the most frequent electrolyte disturbance encountered in clinical settings.
    • Both the condition itself and its management can lead to significant morbidity and mortality.
    • There is a need for updated clinical guidance on managing this common disorder.

    Purpose:

    • To present novel findings in the field of hyponatremia.
    • To discuss these findings within the framework of the recent European Guideline for hyponatremia.
    • To provide clinicians with updated information for optimal patient care.

    Summary:

    • This manuscript reviews recent advancements in understanding and treating hyponatremia.
    • It highlights key findings relevant to clinical practice.
    • The discussion integrates new data with the first European hyponatremia guideline.

    Impact:

    • Improved understanding of hyponatremia's pathophysiology and clinical implications.
    • Enhanced clinical decision-making for hyponatremia management.
    • Potential reduction in morbidity and mortality associated with hyponatremia.