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A 48-year-old member asked:

Are intravenous solutions isotonic?

1 doctor answer4 doctors weighed in
Dr. Ankush Bansal
Internal Medicine 17 years experience
Depends: Normal saline (0.9% nacl) and lactated ringer's (lr) is very close to isotonic. Hypertonic saline, hypotonic saline (0.45% nacl), d5w (dextrose 5%), d5ns, and d5 1/2ns are not. It all depends on the fluid and electrolyte needs.

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Last updated Jun 30, 2014

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