Alkaline Phosphatase (ALP)

Cleveland Heartlab A, Test

CPT: 84075
Order Code: C111
ABN Requirement:  No
Synonyms: ALP; ALKP; Alk Phos
Specimen: Serum
Volume: 0.5 mL
Minimum Volume: 0.2 mL
Container: Gel-barrier tube (SST, Tiger Top)


  1. Collect and label sample according to standard protocols.
  2. Gently invert tube 5 times immediately after draw. DO NOT SHAKE.
  3. Allow blood to clot 30 minutes.
  4. Centrifuge for 10 minutes.

Patient Preparation: Fasting is preferred but not required for this test. Ask your doctor if you should fast before testing.

Transport: Store serum at 2°C to 8°C after collection and ship the same day per packaging instructions provided with the Cleveland HeartLab shipping box.


Ambient (15-25°C): 7 days
Refrigerated (2-8°C): 7 days
Frozen (-20°C): 2 months
Deep Frozen (-70°C): 2 months

Causes for Rejection: Specimens other than serum; improper labeling; samples not stored properly; samples older than stability limits

Methodology: Photometric

Turn Around Time: 1 to 3 days

Reference Range:

Age Male
0-4 Years <350 <340
5-9 Years <385 <385
10-13 Years <485 <400
14-18 Years <350 <195
≥ 19 Years <150 <150

Intended Use: A doctor may order alkaline phosphatase testing to evaluate individuals suspected of having liver disease or metabolic bone disorders.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.