Dehydration And Lab Values. Laboratory parameters were less important in helping reach a decision on uid replacement. Fluid was given to16 out of 43 patients 37 withserumureaconcentrations514 3mmol l 29 49 59 with bicarbonate concentrations. 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. Capillary glu cose values in the hypotensive group were 33 lower than venous labora tory glucose values and were signifi cantly lower than the values obtained in the normotensive group 10 effect of dehydration on blood glucose one study has looked at the effect of.
Hypotension as a result of dehydration results in decrease in perfusion and increase in glucose utilisation in the local tissue leading to false low results of capillary blood glucose cbg tests. This is attributed to the fact that dehydration can cause blood volume to decrease leading to a drop in blood pressure and blood flow. 35 38 children 92 with moderate dehydration 2 2 with severe dehydration and 3 114 2 6 with mild dehydration. To help confirm the diagnosis and pinpoint the degree of dehydration you may have other tests such as. One study assessed the validity of the cbg measurements in the hypotensive critically ill patients. Capillary glu cose values in the hypotensive group were 33 lower than venous labora tory glucose values and were signifi cantly lower than the values obtained in the normotensive group 10 effect of dehydration on blood glucose one study has looked at the effect of.
If imbalances and or organ dysfunction are found then serial testing may be performed to monitor the person over time and their response to treatment.
Urine volume will be decreased with low fractional sodium excretion and increased specific gravity. Laboratory values in isotonic dehydration isotonic dehydration will show normal serum laboratory values including normal osmolality 285 295 mosm kg and normal serum sodium 135 145 mmol l. To help confirm the diagnosis and pinpoint the degree of dehydration you may have other tests such as. Hypotension as a result of dehydration results in decrease in perfusion and increase in glucose utilisation in the local tissue leading to false low results of capillary blood glucose cbg tests. They often tell the story of dehydration long before physical symptoms manifest. Sodium potassium and blood urea nitrogen bun are all indicators of a patient s hydration status.