Sodium: Difference between revisions
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<section begin="clinical biochemistry" />'''Sodium''' is an abundant electrolyte in the body, and sodium ion (Na+) is the dominant ion in the extracellular space. Abnormally low or high sodium ([[hyponatraemia]] and [[hypernatraemia]], respectively), are common but potentially lethal disorders in the worst case. | <section begin="clinical biochemistry" />'''Sodium''' is an abundant electrolyte in the body, and sodium ion (Na+) is the dominant ion in the extracellular space. Abnormally low or high sodium ([[hyponatraemia]] and [[hypernatraemia]], respectively), are common but potentially lethal disorders in the worst case.<section end="clinical biochemistry" /> | ||
<section begin="clinical biochemistry" /> | |||
== Sodium homeostasis == | == Sodium homeostasis == | ||
The level of sodium in the body is regulated by the [[renin-angiotensin-aldosterone system]] (RAAS) and by [[anti-diuretic hormone]] (ADH). <section end="clinical biochemistry" /> | The level of sodium in the body is regulated by the [[renin-angiotensin-aldosterone system]] (RAAS) and by [[anti-diuretic hormone]] (ADH). <section end="clinical biochemistry" /> | ||
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== Sodium in the diet == | == Sodium in the diet == | ||
Too much sodium in the diet increases the risk of cardiovascular disease. Most people today eat much more sodium than is recommended. | Too much sodium in the diet increases the risk of cardiovascular disease. Most people today eat much more sodium than is recommended. | ||
<section begin="clinical biochemistry" /> | |||
== Sodium in laboratory medicine == | |||
When measuring sodium levels in a blood test, flame photometry or ion-selective electrodes (potentiometry) is used. | |||
<section end="clinical biochemistry" /> | |||
[[Category:Physiology]] | [[Category:Physiology]] | ||
Revision as of 11:05, 22 January 2024
This article is a stub, meaning that it is unfinished. It will eventually be expanded.
Sodium is an abundant electrolyte in the body, and sodium ion (Na+) is the dominant ion in the extracellular space. Abnormally low or high sodium (hyponatraemia and hypernatraemia, respectively), are common but potentially lethal disorders in the worst case.
Sodium homeostasis
The level of sodium in the body is regulated by the renin-angiotensin-aldosterone system (RAAS) and by anti-diuretic hormone (ADH).
Sodium in the diet
Too much sodium in the diet increases the risk of cardiovascular disease. Most people today eat much more sodium than is recommended.
Sodium in laboratory medicine
When measuring sodium levels in a blood test, flame photometry or ion-selective electrodes (potentiometry) is used.