What is Dehydration? Causes, Signs and Symptoms, Diagnosis and Treatment.

today's topic is dehydration dehydration

occurs when more water and fluids leave

the body than enter it

even low levels of dehydration can cause

headaches lethargy and constipation the

human body is roughly 75% water without

this water it cannot survive water is

found inside cells within blood vessels

and between cells causes sometimes

dehydration occurs for simple reasons

you don't drink enough because you're

sick or busy or because you lack access

to safe drinking water when you're

traveling hiking or camping other

dehydration causes include diarrhea or

vomiting severe acute diarrhea that is

diarrhea that comes on suddenly and

violently can cause a tremendous loss of

water and electrolytes in a short amount

of time if you have vomiting along with

diarrhea and you lose even more fluids

and minerals fever in general the higher

your fever the more dehydrated you may

become the problem worsens if you have a

fever in addition to diarrhea and

vomiting excessive sweating you lose

water when you sweat if you do figure

it's activity and don't replace fluids

as you go along you can become

dehydrated hot humid weather increases

the amount you sweat and the amount of

fluid you lose increased urination this

may be due to undiagnosed or

uncontrolled diabetes certain

medications such as diuretics and some

blood pressure medications also can lead

to dehydration generally because they

cause you to urinate more signs and

symptoms the body's initial responses to

dehydration are thirst to increase water

intake and decreased urine output to try

to conserve water loss the urine will

become concentrated and more yellow in

color as the level of water loss

increases more symptoms can become


the following are further signs and

symptoms of dehydration dry mouth eyes

stop making tears sweating may stop

muscle cramps nausea and vomiting heart

palpitations light headedness especially

what's standing weakness decreased urine

output the body tries to maintain

cardiac output the amount of blood that

is pumped by the heart of the body and

if the amount of fluid in the

intravascular space is decreased the

body compensates for this decrease by

increasing the heart rate and making

blood vessels constrict to try to

maintain blood pressure and blood flow

to the vital organs of the body the body

shunts blood flow away from the skin to

internal organs for example the brain

heart lungs kidneys and intestines

causing the skin to feel cool and clammy

this coping mechanism begins to fail as

the level of dehydration increases with

severe dehydration confusion and

weakness will occur as the brain and

other body organs receive less blood

flow finally coma organ failure and

death eventually will occur if the

dehydration remains untreated diagnosis

your doctor can often diagnose

dehydration on the basis of physical

signs and symptoms if you're dehydrated

you're also likely to have low blood

pressure especially when moving from a

line to a standing position

faster the normal heart rate and reduced

blood flow to your extremities to help

confirm the diagnosis and pinpoint the

degree of dehydration you may have other

tests such as blood tests blood samples

may be used to check for a number of

factors such as the levels of your

electrolytes especially sodium and

potassium and how well your kidneys are

working your analysis test done on your

urine can help show whether you're

dehydrated and to what degree they also

can check for signs of a bladder


treatment the only effective treatment

for dehydration is to replace lost

fluids and lost electrolytes the best

approach to dehydration treatment

depends on age the severity of

dehydration and its cause for infants

and children who have become dehydrated

from diarrhea vomiting or fever using

over-the-counter oral rehydration

solution these solutions contain water

and salts in specific proportions to

replenish both fluids and electrolytes

children and adults who are severely

dehydrated should be treated by

emergency personnel arriving in an

ambulance or in a hospital emergency

room salts and fluids delivered through

a vein or intravenously are absorbed

quickly and speed recovery thank you for

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