Skip to content
Our Cambridge clinic is opening its doors on the 30th of April. Book now!
Our Cambridge clinic is opening its doors on the 30th of April. Book now!

Alkaline Phosphatase (ALP) - description and reference ranges

What is it?

Alkaline Phosphatase (ALP) is an enzyme produced by the liver and bones. It is used as a marker of liver function/damage and high levels of ALP may be an indicator that the liver has been damaged.

It is worth noting that smaller amounts of ALP are found in the placenta of women who are pregnant, and in the intestines.

Reference ranges

If your indicative ALP level is lower than the reference range for our laboratory:

Low levels of ALP are not particularly common. It may imply low levels of zinc in the body or general malnutrition, some types of anemia or thyroid disease

Please discuss this result with your GP.

If your indicative ALP level is higher than the reference range for our laboratory:

Elevated levels of ALP are usually due to a disorder of either the bone or liver.

The liver disorder is usually supported by elevated levels of other biomarkers, such as Bilirubin, Gamma-Glutamyl Transferase (GGT) and Alanine Aminotransferase (ALT).

A bone disorder is usually supported by abnormal measurements for Calcium and Phosphate.

Please discuss this result with your GP.

Quick test finder

Quick test finder

Find what you need in under 30 seconds with our (very clever!) test finder. We offer a huge range of markers all a few clicks away, as well as fastest turnaround times.

Find your test

You might also like to read

  • stress
    Dr. Adam Staten

    Stress and how to manage it

    Stress is an unavoidable part of life. The World Health Organisation defines stress as a: ‘state of worry or mental tension caused by a difficult situation’ and, as this definition suggests, stress can result from any number of issues. Most...

    Read now
  • water splash
    Dr. Adam Staten

    Water - The Importance of Staying Hydrated

    Our bodies are about 60% water and water is absolutely fundamental to every aspect of our body’s functioning. Survival experts say that we can last about three days without water during which time you would expect to see a steady...

    Read now