Electrolytes

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Electrolytes are the salts (ions, anions, cations) that are found in the blood. They consist primarily of:

Normal Values*

Calcium

Men	8.8-10.0 mg/dl	2.15-2.55 mmol/L
Women	9.0-10.5 mg/dl	2.15-2.55 mmol/L
Pregnancy	8.1-9.5 mg/dl	2.02-2.40 mmol/L
Children	9.2-11.0 mg/dl	2.30-2.75 mmol/L

Chloride

Men	98-106 mmol/L
Women	98-106 mmol/L
Pregnancy	93-100 mmol/L

Phosphorus

Men	2.7-4.5 mg/dl
Women	3.0-4.5 mg/dl

Magnesium

Men	1.7-2.8 mg/dl	0.70-1.15 mmol/L
Women	2-3 mg/dl	0.82-1.24 mmol/L
Pregnancy	1.6-2.1 mg/dl	0.66-0.86 mmol/L
Therapeutic Range in Pre-eclampsia	4-7 mEq/L	1.65-2.88 mmol/L

Potassium

Men	3.5-5.0 mEq/L	3.5-5.0 mmol/L
Women	3.5-5.0 mEq/L	3.5-5.0 mmol/L
Pregnancy	3.3-4.1 mEq/L	3.3-4.1 mmol/L

Sodium

Men	135-138 mEq/L	135-138 mmol/L
Women	136-145 mEq/L	136-145 mmol/L
Pregnancy	130-140 mEq/L	130-140 mmol/L

*These are general values taken from a variety of sources. The actual normal values may vary from lab to lab and from one type of testing protocol to another.

Source: Operational Medicine 2001, Health Care in Military Settings, NAVMED P-5139, May 1, 2001, Bureau of Medicine and Surgery, Department of the Navy, 2300 E Street NW, Washington, D.C., 20372-5300

Laboratory Tests

Electrolytes