4 doctors weighed in:
I read a blog post about dehydration. But i'm still not clear - what is it?
4 doctors weighed in

Dr. Terry Woodard
Internal Medicine - Nephrology & Dialysis
1 doctor agrees
In brief: Easy/hard answer!
"dehydration" is a loss of water from the body, but is incorrectly used for the more appropriate term of "volume depletion" which is loss of salt and water, and commonly occurs in hot environments, excessive sweat loss, diuretic use, or lack of access to water. It can often be treated with fluids by mouth or IV sodium chloride under the direction oh health providers.
Avoiding causes is key.

In brief: Easy/hard answer!
"dehydration" is a loss of water from the body, but is incorrectly used for the more appropriate term of "volume depletion" which is loss of salt and water, and commonly occurs in hot environments, excessive sweat loss, diuretic use, or lack of access to water. It can often be treated with fluids by mouth or IV sodium chloride under the direction oh health providers.
Avoiding causes is key.
Dr. Terry Woodard
Dr. Terry Woodard
Thank
Dr. Tarek Naguib
Internal Medicine - Nephrology & Dialysis
1 doctor agrees
In brief: Loss of body water
Technically, dehydration means losing water without losing the salt like when you sweat much in hot weather and not make up for it with drinking water due to nausea or vomiting.
Now, if you lose also the salt e.g. When your water pill works well (losing salt & water) and you have nausea/vomiting docs call this volume depletion(volume=salt+water). For lay persons you may call that dehydration too.

In brief: Loss of body water
Technically, dehydration means losing water without losing the salt like when you sweat much in hot weather and not make up for it with drinking water due to nausea or vomiting.
Now, if you lose also the salt e.g. When your water pill works well (losing salt & water) and you have nausea/vomiting docs call this volume depletion(volume=salt+water). For lay persons you may call that dehydration too.
Dr. Tarek Naguib
Dr. Tarek Naguib
Thank
Dr. Dennis Clifford
Internal Medicine - Pulmonary Critical Care
In brief: Inadequate fluid
Dehydration is a condition of relative loss of fluid compared to intake in a relatively short period of time.
Total body fluid is low and can affect both kidney and cardiac performance. The salts (electrolytes) in the blood can be disordered causing further problems in normal organ function. If not corrected shock and total kidney faiure can occur.

In brief: Inadequate fluid
Dehydration is a condition of relative loss of fluid compared to intake in a relatively short period of time.
Total body fluid is low and can affect both kidney and cardiac performance. The salts (electrolytes) in the blood can be disordered causing further problems in normal organ function. If not corrected shock and total kidney faiure can occur.
Dr. Dennis Clifford
Dr. Dennis Clifford
Thank
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