// AEMT Question · Cardiology
Which of the following IV fluids is isotonic?
A. D5W
B. 0.9% NSCorrect
C. 0.45% NS
D. D10W
// Rationale
0.9% NS is isotonic; D5W is initially isotonic but becomes hypotonic.
// AEMT Question · Cardiology
// Rationale
0.9% NS is isotonic; D5W is initially isotonic but becomes hypotonic.