Common IV Therapy Solutions: Tonicity, Calories, Osmolarity

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iv therapy, commonly used solutions

*

Solution tonicity at the time of administration. Within a short time after administration, the dextrose is metabolized and the tonicity of the infused solution decreases in proportion to the osmolarity or tonicity of the non-dextrose components(electrolytes) within the water.

0.9% saline

Osmolarity: 308

Calories(kcal):0

Tonicity: Isotonic

0.45% saline

Osmolarity: 154

Calories(kcal): 0

Tonicity: Hypotonic

5% dextrose in water(D5W)

Osmolarity: 272

Calories(kcal): 170

Tonicity: Isotonic*

10% dextrose in water(D10W)

Osmolarity: 500

Calories(kcal): 340

Tonicity: Hypertonic*

5% dextrose in 0.9% saline

Osmolarity: 560

Calories(kcal): 170

Tonicity: Hypertonic*

5% dextrose in 0.45% saline

Osmolarity: 406

Calories(kcal): 170

Tonicity: Hypertonic*

5% dextrose in 0.225% saline

Osmolarity: 321

Calories(kcal): 170

Tonicity: Isotonic*

Ringer's lactate

Osmolarity: 273

Calories(kcal): 9

Tonicity: Isotonic

5% dextrose in Ringer's lactate

Osmolarity: 525

Calories(kcal): 179

Tonicity: Hypertonic*

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