Why is ionized calcium high

Ionized calcium is measured with an ion-specific electrode. Generally, ionized calcium changes by approximately 0. Erroneously low ionized calcium can also occur in vitro from underfilled tubes, or tubes left uncapped before measurement, because the loss of carbon dioxide increases sample pH and increases protein-bound calcium.

Specimen requirement is one SST tube of blood. Tourniquet time should not exceed one minute. The tube must remain capped and should be transported in wet ice.

Hemolysis will falsely lower ionized calcium values. Once collected, the pH of a blood sample may decrease from cell metabolism or increase due to loss of carbon dioxide if the specimen is exposed to air. Ionized calcium values change inversely to pH. The magnitude of change is 0. Home Test Interpretations Calcium Ionized. Some laboratories use different measurements or may test different specimens. Hormones and disorders of mineral metabolism. Williams Textbook of Endocrinology. Philadelphia, PA: Elsevier; chap Biochemical markers of bone metabolism.

St Louis, MO: Elsevier; chap Thakker RV. The parathyroid glands, hypercalcemia, and hypocalcemia. Goldman-Cecil Medicine. Philadelphia, PA: Elsevier Saunders; chap The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition.

A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Hypercalcemia is a condition in which you have too much calcium in your blood. Although calcium is important for bone health and normal functioning in….

Calcium has many benefits, but most people aren't getting enough of this mineral. Here is a list of 15 foods that are rich in calcium, many of which…. Your doctor will order a calcium blood test as part of a routine exam or if you're having certain symptoms. Here's what you need to know. Calcium supplements can help you build strong bones.

However, they may also cause negative health effects for many people. A urine calcium test is done to measure how much calcium is passed out of the body through urine. Find information on why a serum albumin test is performed, how to prepare for the test, what to expect during the test, and how to interpret results. Magnesium is vital to regulating blood pressure and maintaining bone strength. Learn about the serum test, which tells you how much of the element is…. Malabsorption syndrome refers to a number of disorders in which the small intestine is unable to absorb enough nutrients.

These nutrients may include…. Phosphorus is vital to bone growth and energy storage, among other things. Learn about the serum test, which tells you how much of the element is in…. Multiple tests can analyze metabolism. Most need blood drawn, but some can be ordered online and done at home.

Here are 2. Health Conditions Discover Plan Connect. Ionized Calcium Test. Medically reviewed by Daniel Murrell, M.