Merck Manual

Please confirm that you are a health care professional

Crystalloids

Crystalloids

Crystalloid

Tonicity

Sodium (mEq/L)

Chloride (mEq/L)

Potassium (mEq/L)

Calcium (mEq/L)

Osmolality (mOsm/L)

pH

Lactated Ringer’s solution

Isotonic

130

109

4

3

273 (pH 6.7)

6.7

Plasmalyte-A®

Isotonic

140

103

5

0

294 (pH 7.4)

7.4

Normosol-R®

Isotonic

140

98

5

0

295 (pH 7.4)

7.4

Normal saline (0.9%)

Isotonic

154

154

0

0

308 (pH 5.7)

5.7

Dextrose (2.5% in 0.45% saline)

Isotonic

77

77

0

0

280 (pH 4.5)

4.5

Dextrose (5%) in water

Hypotonic

0

0

0

0

253 (pH 5.0)

5.0

Hypertonic saline (7.5%)

Hypertonic

1,232

1,232

0

0

2,464 (pH 5.2)

5.2

Normosol-M® with 5% dextrose

Hypertonic

40

40

13

0

363 (pH 5.2)

5.2

Electrolyte units are mEq/L.