Table 1. Intravenous fluid contents.

IV fluid	Sodium (mEq/L)	Chloride (mEq/L)	Tonicity
0.9% NaCl	154	154	Isotonic
Plasma-Lyte	140	98	Isotonic
Lactated Ringer's	130	109	Near isotonic
0.45% NaCl	77	77	Hypotonic

Abbreviation: IV, intravenous.