Test Detail
Interpreting Results

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Written by
Dr. Betina Chandolia
BDS, MDS - Oral Pathology and Microbiology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Alkaline Phosphatase Bone Fraction

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What is Alkaline Phosphatase Bone Fraction?

The Bone Alkaline Phosphatase test is an immunoenzymatic assay performed to diagnose or determine the severity of metabolic diseases of the bone like Osteomalacia, Paget’s disease, Osteoporosis, etc.

Why is Alkaline Phosphatase Bone Fraction done?

The bone alkaline phosphatase test is performed when there are symptoms of bone disorders like deformation in bones, pain in bones and joints, frequent fractures, etc.

Interpreting Alkaline Phosphatase Bone Fraction results


The normal ranges for Bone Alkaline Phosphatase are:
• <2 years: 25-221 mcg/L
• 2-9 years: 27-148 mcg/L
• 10-13 years: 35-169 mcg/L
• 14-17 years: 13-111 mcg/L
• Adults: Up to 20 mcg/L
• <2 years: 28-187 mcg/L
• 2-9 years: 31-152 mcg/L
• 10-13 years: 29-177 mcg/L
• 14-17 years: 7-41 mcg/L
• Adults
-Premenopausal: Up to 14 mcg/L
-Postmenopausal: Up to 22 mcg/L


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