TEST DIRECTORY | MIDx Labs

ALKALINE PHOSPHATASE (ALKP)

Important marker of liver/biliary or bone pathologies.

LIS TEST CODE: ALKP

CPT CODE: 84075

ALIASES: ALKP

METHODOLOGY: Para-Nitrophenyl Phosphate

SPECIMEN:

- Type: Serum

- Container: Gold Top (SST) Vacutainer

- Minimum Volume Required: 1 mL

- Storage/Handling: Allow 30 minutes for blood to clot, then centrifuge specimen at 3500 RPM for 10 minutes. Maintain specimen at room temperature, in the refrigerator, or in the freezer until testing can be performed.

NOTE: If freezing is required to preserve stability, transfer serum into a separate plastic screw-cap transport container.

- Stability:

Room Temperature (20-25 °C): 7 days

Refrigerated (2-8 °C): 7 days

Frozen (-20 °C or colder): 2 months; avoid multiple freeze/thaw cycles.

- Turnaround Time: 24 hours from receipt.

Special Instructions: N/A

REJECTION REASONS: QNS, Gross Hemolysis, Gross Lipemia, Contamination, Stability Violation, Expired Container, Incorrect Container

REFERENCE RANGES:

Males (U/L)

1 - 9 years of age: 142 - 335

10 - 12 years of age: 129 - 417

13 - 14 years of age: 116 - 468

15 - 16 years of age: 82 - 331

17 - 18 years of age: 55 - 149

>= 19 years of age: 40 - 129

Females (U/L)

1 - 9 years of age: 142 - 335

10 - 12 years of age: 129 - 417

13 - 14 years of age: 57 - 254

15 - 16 years of age: 50 - 117

>= 17 years of age: 35 - 104