Electrolytes

Calcium, Ionized, Serum

A healthy result should fall into the range 4.5 - 5.6 mg/dL.

Calcium is an important mineral found throughout the body. Not only is it important for bone health, but it is important cell communication, blood clotting, muscle contraction, and nerve cell function. The amount of calcium in the body and blood is regulated by several substances including parathyroid hormone, calcitonin, estrogen, and vitamin D, among others. Almost all calcium in the body is found within the bones and teeth. Compared to this, the amount of calcium found outside in the serum is small. However, the amount of calcium found in the serum is an important biomarker. About half of calcium in the blood is bound to proteins and other molecules. However, the other half of blood calcium floats freely in the serum. This free calcium or ionized serum calcium is biologically active and measured directly by the ionized serum calcium test. Serum calcium is usually reported in units of mg/dL in the United States and in mmol/L in many other countries. It may also be reported as mEq/L.

Normal Ranges for ionized calcium:

Men: 4.64 to 5.28 mg/dL

Women: 4.64 to 5.28 mg/dL

Children to up 18 years of age: 4.8 to 5.52 mg/dL

Critical Range: More than 7 mg/dL or less than 2 mg/dL

 

Sources:

http://www.ncbi.nlm.nih.gov/books/NBK279023/

http://www.uptodate.com/contents/regulation-of-calcium-and-phosphate-balance

http://dx.doi.org/10.1038/nrrheum.2012.157

https://www.uptodate.com/contents/relation-between-total-and-ionized-serum-calcium-concentrations

https://www.healthline.com/health/calcium-ionized#results

https://emedicine.medscape.com/article/2087469-overview

https://www.uptodate.com/contents/clinical-manifestations-of-hypocalcemia

Calcium, Ionized, Serum result calculator

insert the value from you Calcium, Ionized, Serum test result.

Is your Calcium, Ionized, Serum result too high or too low?
Upload lab report and instantly get more information about your results.

One Report Interpretation

$15 one time

Select this plan

  • One lab report interpretation
  • Use self upload form
  • 800+ biomarkers explained
  • Explanation of high, low results
  • Recommendations
  • Pay per additional interpretations

Unlimited Interpretations

$59 per year

Select this plan

  • Unlimited lab report interpretations
  • We do the uploading of 4 tests for you
  • 800+ biomarkers explained
  • Explanation of high, low results
  • Recommendations
  • Online support

Test results don't lie. Learn what is happening inside your body.

Health is not exactly rocket science. You just have to know what your body needs and doesn't need. Your medical tests contain that information. Upload them to our service and we’ll help you understand organize, and act on them.

Get Started

WE SUPPORT 1000+ BIOMARKERS INCLUDING BIOMARKERS FROM YOUR FAVOURITE LABS


"I was really concerned about my lab results and my GP was not able to see me for another week. Through HealthMatters I was able to interpret my results instantly."


"I've been keeping all my lab results in a spreadsheet, covering approximately 20 years. The HealthMatters team helped me upload that info into the cloud. I can show this data to my family and doctors now easily."


"I had no idea what my lab results meant. Here I found all the biomarkers that I was looking for online. Finally, I have not only organized them all neatly in one place, but I am also grateful to be able to understand what they mean."

Your Privacy And Security

At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put security measures in place to help protect against the loss, misuse or alteration of information under our control. We use procedural, physical and electronic security methods designed to prevent people who aren't authorized from getting access to this information. Our internal code of conduct adds additional privacy protection. See our Privacy Policy for more information.