Usually 1-3 hrs.: IV fluids for dehydration usually takes 1-3 hours depending on the level of dehydration and how much IV fluids needs to be given.
Answered 7/2/2014
3.9k views
Rehydration: through an IV usually only takes a few hours, longer if medical problems such as heart or kidney disease are present.
Answered 12/22/2019
3.5k views
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