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Hyponatremia or hyponatraemia is a low concentration of sodium in the blood. [4] It is generally defined as a sodium concentration of less than 135 mmol/L (135 mEq/L ), with severe hyponatremia being below 120 mEq/L. [ 3 ] [ 8 ] Symptoms can be absent, mild or severe.
Hypoosmolar hyponatremia is a condition where hyponatremia is associated with a low plasma osmolality. [1] The term "hypotonic hyponatremia" is also sometimes used.[2]When the plasma osmolarity is low, the extracellular fluid volume status may be in one of three states: low volume, normal volume, or high volume.
EAH is categorized by having a blood serum or plasma sodium level below normal, which is less than 135 mmol/L. [1] Asymptomatic EAH is not normally detected unless the athlete has had a sodium blood serum or plasma test. [1] Hyponatremic encephalopathy may be detected using brain imaging studies and pulmonary edema may be confirmed by x-ray.
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This page was last edited on 13 November 2024, at 13:46 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
[9] [10] [11] Kidneys work to keep the electrolyte concentrations in blood constant despite changes in the body. [6] [8] For example, during heavy exercise, electrolytes are lost in sweat, particularly in the form of sodium and potassium. [8] The kidneys can also generate dilute urine to balance sodium levels. [8]
The comprehensive metabolic panel, or chemical screen (CMP; CPT code 80053), is a panel of 14 blood tests that serves as an initial broad medical screening tool. The CMP provides a rough check of kidney function, liver function, diabetic and parathyroid status, and electrolyte and fluid balance, but this type of screening has its limitations.
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