Menu

An expert resource for medical professionals
Provided FREE as a service to women’s health

The Alliance for
Global Women’s Medicine
A worldwide fellowship of health professionals working together to
promote, advocate for and enhance the Welfare of Women everywhere

An Educational Platform for FIGO

The Global Library of Women’s Medicine
Clinical guidance and resources

A vast range of expert online resources. A FREE and entirely CHARITABLE site to support women’s healthcare professionals

The Global Academy of Women’s Medicine
Teaching, research and Diplomates Association

Menu

Laboratory Tests

This section provides detailed information on a wide range of laboratory tests relevant to women's medicine

A rapid reference

Calcium

Calcium is used by the body to assist in:
  • Blood clotting
  • Muscle contractions
  • Nerve impulse conduction

Most (98%) of the body's calcium is stored in the teeth and bones. In the blood, about half the calcium is bound to plasma proteins, and about half is free (ionized, Ca++).

Calcium levels may rise in the presence of:

  • Cancer
  • Acidosis
  • Hyperthyroidism
  • Hyperparathyroidism
  • Bedrest
  • Calcium supplements
  • Excessive vitamin D intake

Calcium levels may fall in the presence of:

  • Decreased plasma proteins 
  • Alkalosis
  • Diarrhea
  • Vitamin C deficiency

Normal Values*

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

*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.