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Alkaline Phosphatase

ALP, Alk Phos

Testing Information

Sample Type
Test Codes
CPT Code
Testing Area
Core Lab - Chemistry
Test Methodology
Abbott Alinity - Enzymatic
Reference Range
Female, 0-18 years: 48-95 U/LFemale, 19-60 years: 33-120 U/LFemale, >60 years: 37-135 U/LMale, 0-18 years: 59-164 U/LMale, >18 years: 33-120 U/L
Expected Turnaround Time
Results Available 24 hours from Receipt at the laboratory.
Specimen Collection Criteria
Collect one gold top SST tube (minimum whole blood: 4 mL). Let specimen clot for 30-60 minutes and then centrifuge to separate serum from cells. Refrigerate after centrifugation.
Rejection Criteria
Grossly hemolyzed specimens, quantity not sufficient, improperly labeled
Specimen Validity and Retention
Centrifuged SST Tubes:Room Temperature (20-25°C): 7 daysRefrigerated (2-8°C): 7 daysFrozen (-20°C or greater): UnacceptableSerum Aliquots:Room Temperature (20-25°C): 7 daysRefrigerated (2-8°C): 7 daysFrozen (-20°C or greater): 7 daysSpecimens retained for 7 days after testing
Courier Transportation
Transport centrifuged tube refrigerated (2-8°C)
Clinical Utility
Alkaline Phosphatase is useful in diagnosis and monitoring of bone and liver diseases.