Dehydration

	Name	Dehydration
	ICD10
	ICD9

Dehydration ('''hypohydration''') is the removal of Water (''hydro'' in ancient Greek ) from an object. Medical ly, it is a condition in which the body contains an insufficient volume of water for normal functioning.

MEDICAL CAUSES OF DEHYDRATION IN HUMANS

In Human s, dehydration can be caused by a wide range of Disease s and states that impair
water Homeostasis in the body. These include:

External or Stress -related causes

--- Prolonged physical activity without consuming adequate water, especially in a hot and/or humid environment

--- Prolonged exposure to dry air, e.g., in high-flying airplanes (5-15% r.h.)

--- Survival situations, especially Desert Survival conditions

--- Blood Loss or Hypotension due to Physical Trauma

--- Diarrhoea

--- Hyperthermia

--- Shock (hypovolemic)

--- Vomit ing

--- Burns

--- Lacrimation

Infectious Diseases

--- Cholera

--- Gastroenteritis

--- Shigellosis

--- Yellow Fever

Malnutrition

--- Electrolyte Disturbance

-- Hypernatremia (also caused by dehydration)

-- Hyponatremia , especially from restricted Salt Diet s

--- Consumption of Alcohol , Caffeine or other Diuretic substances.

--- Fasting

--- Recent rapid Weight Loss may reflect progressive depletion of fluid volume. (The loss of 1 L of fluid results in a weight loss of 1 kg, or 2.2 lb.)http://www.heartspring.net/symptoms_of_dehydration.html

--- Patient Refusal Of Nutrition And Hydration

Other causes of obligate water loss

--- Severe Hyperglycemia , especially in Diabetes Mellitus

-- Glycosuria

SYMPTOMS AND PROGNOSIS

Symptom s may include Headache s similar to what is experienced during a Hangover , a sudden episode of Visual Snow , decreased Blood Pressure ( Hypotension ), and Dizziness or Fainting when standing up due to Orthostatic Hypotension . Untreated dehydration generally results in Delirium , Unconsciousness , and in extreme cases Death .

	CATEGORIES ABOUT DEHYDRATION

	electrolyte disturbance

	nutrition

	causes of death

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Information About

Dehydration