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Physical exam hydration status checks
Skin turgor, appropriate weight gain, mucous membrane moisture
What is the limitation of physical exam hydration checks?
They are subjective
Objective hydration tests
PCV, TP, BUN, Creatinine, lactate, glucose, USG, urine output, body weight
What are the two main electrolytes to evaluate with dehydration?
Na+ and K+
What is the ideal normal PCV?
35%
What is the ideal normal total protein?
5.0 g/dL
When should a USG be measured? Why?
Before fluid administration to evaluate renal function
What does concentrated urine in a dehydrated patient indicate?
Adequate renal function, the kidneys are absorbing as much water as they can
On IV fluids, a normal and healthy patient should have what kind of urine concentration?
Isosthenuric
What is the ideal USG range after fluid therapy?
1.015-1.018
What are the different ways urine can be used to evaluate hydration status?
Color, volume, and USG
Note 
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