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Alkaline Phosphatase Isoenzymes Blood Test

The Alkaline Phosphatase Isoenzymes Blood Test measures the amounts of different types of ALP in the blood to screen for liver or bone diseases.

Sample Report

Test Code: 001612

CPT Code: 84075,84080

Also Known As: ALP Isoenzymes, Fractionated Alkaline Phosphatase, Kasahara Isoenzymes, Nag Ao Isoenzymes, Regan Isoenzymes

Methodology:

Electrophoresis

Specimen Type: Serum

Preparation:

Fasting for at least 10-12 hours is required.

Test Results:

3-5 days. May take longer based on weather, holiday, or lab delays.


Details:

Test includes: Relative percentages of liver, bone, and intestinal alkaline phosphatase isoenzymes and total alkaline phosphatase

Sample Report

Test Code: 231

CPT Code: 84075,84080

Also Known As: ALP Isoenzymes, Fractionated Alkaline Phosphatase, Kasahara Isoenzymes, Nag Ao Isoenzymes, Regan Isoenzymes

Methodology:

Electrophoresis • Spectrophotometry (SP)

Specimen Type: Serum

Preparation:

Fasting for at least 10-12 hours is required.

Test Results:

5-8 days. May take longer based on weather, holiday, or lab delays.


Details:

Test includes: Alkaline Phosphatase, Intestinal Isoenzymes, Bone Isoenzymes, Liver Isoenzymes, Placental Isoenzymes, Macrohepatic Isoenzymes

Description

What is the purpose of this test?

Order this Alkaline Phosphatase Isoenzymes Blood Test, which measures the amounts of different types of ALP in the blood to screen for liver or bone diseases. Alkaline Phosphatase (ALP) is an enzyme produced by different parts of the human body. The areas with the highest ALP concentration are the liver, bones, kidneys, and digestive system. If the levels of ALP in the blood are abnormal, it may indicate various health conditions such as liver disease, bone disorders, and chronic kidney disease. However, since an alkaline phosphatase test alone cannot determine the specific source of ALP in the blood, additional tests are necessary to diagnose the condition. An ALP isoenzyme test is generally used to follow up on abnormal ALP levels found in a previous test. This test helps determine which part of the body is causing higher ALP levels.

 

What conditions are associated with abnormal ALP levels?

Elevated levels of alkaline phosphatase (ALP) in the body can indicate issues with the liver or bone disorders. However, it is not possible to determine the type of ALP that is high from the test results alone. In such cases, healthcare providers may recommend additional tests, such as an ALP isoenzyme test or liver function tests, to identify the root cause of the problem. 

 

Elevated ALP levels in the liver may be indicative of underlying conditions such as:

 

  • Blockages in bile ducts
  • Cirrhosis
  • Hepatitis
  • Mononucleosis

 

If liver tests show normal results but alkaline phosphatase levels are high, it may indicate a bone disorder called Paget's disease of bone. This condition can cause bones to become abnormally large and weak, making them prone to fractures.

 

Moderately high or low levels of ALP in a person's body can indicate various medical conditions. It could be a sign of heart failure, infections, Hodgkin lymphoma, lack of zinc, malnutrition, pernicious anemia, thyroid disease, Wilson disease, or hypophosphatasia. However, higher-than-normal levels of ALP may not necessarily require medical treatment, and a diagnosis is usually made based on symptoms, medical history, and other test results. Low levels of ALP are less common but can indicate the aforementioned conditions.

 

When should I order an Alkaline Phosphatase Isoenzymes Blood Test?

Individuals may order this test if they have experienced symptoms related to liver or bone disease. Common signs or symptoms of liver disease include:

 

  • Nausea and vomiting
  • Lack of appetite
  • Fatigue
  • Weakness
  • Jaundice
  • Swelling or pain in the abdomen
  • Swelling in the ankles and legs
  • Dark-colored urine or light-colored stool
  • Itchiness

 

Symptoms of bone disorders include:

 

  • Pain in the bones
  • Inflammation and arthritis in the joints
  • Abnormal bone growth
  • Broken bones

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