Hypernatremia causes: Difference between revisions
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{{CMG}};{{AE}}{{FT}} | |||
{{Hypernatremia}} | {{Hypernatremia}} | ||
==Overview== | ==Overview== | ||
Hypernatremia can be | Hypernatremia can be caused by many disease processes and drugs. Free water loss is the most important mechanism leading to sodium excess. [[Diarrhea]], [[diabetes insipidus]], [[diuretics]], [[osmotic agents]], [[insensible losses]] or [[impaired thirst]] response due to any disease process affecting the hypothalamus are common causes. Primary sodium excess is a rare cause of hypernatremia and ca be due to sodium salt ingestion or [[minaralocorticoid excess]]. | ||
==Causes== | ==Causes== | ||
Hypernatremia can result from water loss (most common) or sodium retention (rare). | Hypernatremia can result from water loss (most common) or sodium retention (rare). | ||
====Causes of Water Loss==== | |||
* Inadequate intake of water: typically in elderly or otherwise disabled patients who are unable to take in water as their thirst dictates. This is the most common cause of hypernatremia. [[Hypothalamus|Hypothalamic]] disorders can lead to impairement of the [[thirst]] mechanism (primary hypodipsia, '''essential hypernatremia''' caused by the loss of the hypothalamic osmoreceptor function (the plasma osmolarity sensor that stimulates thirst once the plasma is hyperosmolar)) | * Inadequate intake of water: typically in elderly or otherwise disabled patients who are unable to take in water as their thirst dictates. This is the most common cause of hypernatremia. [[Hypothalamus|Hypothalamic]] disorders can lead to impairement of the [[thirst]] mechanism (primary hypodipsia, '''essential hypernatremia''' caused by the loss of the hypothalamic osmoreceptor function (the plasma osmolarity sensor that stimulates thirst once the plasma is hyperosmolar)) | ||
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* Water loss into cells: [[seizure]], severe exercise, [[rhabdomyolysis]] | * Water loss into cells: [[seizure]], severe exercise, [[rhabdomyolysis]] | ||
====Causes of Increased Sodium Retention==== | |||
* Intake of a [[hypertonic]] fluid (a fluid with a higher concentration of solutes than the remainder of the body). This is relatively uncommon, though it can occur after a vigorous resuscitation where a patient receives a large volume of a concentrated [[sodium bicarbonate]] solution. Ingesting seawater also causes hypernatremia because seawater is hypertonic. | * Intake of a [[hypertonic]] fluid (a fluid with a higher concentration of solutes than the remainder of the body). This is relatively uncommon, though it can occur after a vigorous resuscitation where a patient receives a large volume of a concentrated [[sodium bicarbonate]] solution. Ingesting seawater also causes hypernatremia because seawater is hypertonic. | ||
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*[[Diarrhea]] | *[[Diarrhea]] | ||
*[[Vomiting]] | *[[Vomiting]] | ||
*[[ | *[[Inappropriate IV fluids]] | ||
*[[Renal failure]] | |||
*[[Diuretics]] | |||
===Causes by Organ System=== | ===Causes by Organ System=== | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Drug Side Effect''' | | '''Drug Side Effect''' | ||
|bgcolor="Beige"| [[Diuretics]], [[Prednisolone]] | |bgcolor="Beige"| [[Diuretics]], [[Ibuprofen]], [[Prednisolone]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Neurologic''' | | '''Neurologic''' | ||
|bgcolor="Beige"| Essential hypernatremia, [[Dementia]], [[Coma]], | |bgcolor="Beige"| Essential hypernatremia, [[Dementia]], [[Coma]], Hypothalamic lesion, Inability to recognize thirst for water | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Nutritional / Metabolic''' | | '''Nutritional / Metabolic''' | ||
|bgcolor="Beige"| Ingestion of large quantities of sodium (seawater), | |bgcolor="Beige"| Ingestion of large quantities of sodium (seawater), Decreased protein intake | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|} | |} | ||
===Causes in Alphabetical Order=== | ===Causes in Alphabetical Order=== | ||
{{columns-list| | |||
*[[Adrenal tumors secreting deoxycorticosterone]] | *[[Adrenal tumors secreting deoxycorticosterone]] | ||
*[[Alcoholism]] | *[[Alcoholism]] | ||
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*[[Tachypnea]] | *[[Tachypnea]] | ||
*[[Thyrotoxicosis]] | *[[Thyrotoxicosis]] | ||
}} | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
[[Category: | [[Category:Inborn errors of metabolism]] | ||
[[Category: | [[Category:Blood tests]] | ||
[[Category:Emergency medicine]] | [[Category:Emergency medicine]] | ||
[[Category:Intensive care medicine]] | |||
[[Category:Nephrology]] | [[Category:Nephrology]] | ||
[[Category:Electrolyte disturbance]] | [[Category:Electrolyte disturbance]] | ||
{{WikiDoc Help Menu}} | {{WikiDoc Help Menu}} | ||
{{WikiDoc Sources}} | {{WikiDoc Sources}} | ||
Latest revision as of 21:17, 10 January 2020
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Feham Tariq, MD [2]
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Hypernatremia Microchapters |
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Hypernatremia causes On the Web |
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American Roentgen Ray Society Images of Hypernatremia causes |
Overview
Hypernatremia can be caused by many disease processes and drugs. Free water loss is the most important mechanism leading to sodium excess. Diarrhea, diabetes insipidus, diuretics, osmotic agents, insensible losses or impaired thirst response due to any disease process affecting the hypothalamus are common causes. Primary sodium excess is a rare cause of hypernatremia and ca be due to sodium salt ingestion or minaralocorticoid excess.
Causes
Hypernatremia can result from water loss (most common) or sodium retention (rare).
Causes of Water Loss
- Inadequate intake of water: typically in elderly or otherwise disabled patients who are unable to take in water as their thirst dictates. This is the most common cause of hypernatremia. Hypothalamic disorders can lead to impairement of the thirst mechanism (primary hypodipsia, essential hypernatremia caused by the loss of the hypothalamic osmoreceptor function (the plasma osmolarity sensor that stimulates thirst once the plasma is hyperosmolar))
- Renal loss: Inappropriate excretion of water, often in the urine, which can be due to medications like diuretics or lithium or can be due to a medical condition called diabetes insipidus. Osmotic diuresis can occur when osmotically active substances are present in large amounts in the plasma (glucose, [[urea, mannitol, etc)
- GI loss: osmotic diarrhea (infectious, malabsorptive, lactulose intake)
- Insensible losses: excessive sweating in the context of exercise or warm climate
- Water loss into cells: seizure, severe exercise, rhabdomyolysis
Causes of Increased Sodium Retention
- Intake of a hypertonic fluid (a fluid with a higher concentration of solutes than the remainder of the body). This is relatively uncommon, though it can occur after a vigorous resuscitation where a patient receives a large volume of a concentrated sodium bicarbonate solution. Ingesting seawater also causes hypernatremia because seawater is hypertonic.
- Mineralcorticoid excess due to a disease state such as Conn's syndrome or Cushing's Syndrome.
Common Causes
Causes by Organ System
| Cardiovascular | No underlying causes |
| Chemical / poisoning | No underlying causes |
| Dermatologic | Burns, Excessive sweating |
| Drug Side Effect | Diuretics, Ibuprofen, Prednisolone |
| Ear Nose Throat | No underlying causes |
| Endocrine | Diabetes Insipidus, Congenital Adrenal Hyperplasia, Conn's Syndrome,Cushing's Syndrome, Ectopic adrenocorticotropic hormone (ACTH) production, Hyperaldosteronism, Hyperglycemia, Hyperlipidemia, Thyrotoxicosis |
| Environmental | No underlying causes |
| Gastroenterologic | Gastrointestinal losses (diarrhea, vomiting), Inability to swallow water (physical limitation) |
| Genetic | No underlying causes |
| Hematologic | No underlying causes |
| Iatrogenic | Inappropriate IV fluids |
| Infectious Disease | Fever |
| Musculoskeletal / Ortho | No underlying causes |
| Neurologic | Essential hypernatremia, Dementia, Coma, Hypothalamic lesion, Inability to recognize thirst for water |
| Nutritional / Metabolic | Ingestion of large quantities of sodium (seawater), Decreased protein intake |
| Obstetric/Gynecologic | No underlying causes |
| Oncologic | Multiple Myeloma, Adrenal tumors secreting deoxycoricosterone |
| Opthalmologic | No underlying causes |
| Overdose / Toxicity | Alcoholism |
| Psychiatric | No underlying causes |
| Pulmonary | Sarcoidosis, Hyperventilation |
| Renal / Electrolyte | Hypercalcemia, Hypokalemia, Osmotic diuresis, Peritoneal dialysis, Diuresis phase of acute renal failure, Chronic renal failure |
| Rheum / Immune / Allergy | Sjogren's Syndrome |
| Sexual | No underlying causes |
| Trauma | No underlying causes |
| Urologic | No underlying causes |
| Miscellaneous | Amyloidosis, Dehydration, Citrated blood sample, Drip arm sample, EDTA blood sample, Oxalate blood sample, Tachypnea |
Causes in Alphabetical Order
- Adrenal tumors secreting deoxycorticosterone
- Alcoholism
- Amyloidosis
- Burns
- Chronic renal failure
- Citrated blood sample
- Coma
- Congenital Adrenal Hyperplasia
- Conn's Syndrome
- Cushing's Syndrome
- Decreased protein intake
- Dehydration
- Dementia
- Diabetes Insipidus
- Diuresis phase of acute renal failure
- Diuretics
- Drip arm sample
- Ectopic adrenocorticotropic hormone (ACTH) production
- EDTA blood sample
- Essential hypernatremia
- Excessive sweating
- Gastrointestinal losses (diarrhea, vomiting)
- Hyperaldosteronism
- Hypercalcemia
- Hyperglycemia
- Hyperlipidemia
- Hyperventilation
- Hypokalemia
- Hypothalamic lesion
- Inability to recognize thirst for water
- Inability to swallow water (physical limitation)
- Inappropriate IV fluids
- Ingestion of large quantities of sodium (seawater)
- Multiple Myeloma
- Osmotic diuresis
- Oxalate blood sample
- Peritoneal dialysis
- Prednisolone
- Sarcoidosis
- Sjogren's Syndrome
- Tachypnea
- Thyrotoxicosis