An infant appears dehydrated.Laboratory results indicate a serum sodium of 143 mEq/L.Which fluid would the nurse use for IV replacement?
A) 0.45% normal saline
B) 0.9% normal saline
C) 3% normal saline
D) D5W with 20 mEq KCL

Question

Quizplus · Accepted Answer

This child has an isotonic dehydration,in which fluids and solutes are lost in balanced proportions,as evidenced by the normal serum sodium level.The child needs an isotonic IV solution,which would be 0.9% normal saline.The 0.45% normal saline ("half normal saline")is hypotonic,as is D5W,with or without potassium.The 3% normal saline is hypertonic.

An Infant Appears Dehydrated