Inpatient and Outpatient Orderable

Alkaline Phosphatase Isoenzymes Build info

Synonyms

  • ALKALINE PHOSPHATASE, ISOENZYMES
  • ALKP ISO
  • LAB741

Procedure Name

ALKALINE PHOSPHATASE, ISOENZYMES

Procedure Master Number

LAB741

Procedure ID

64641

Clinical Info

Evaluate the contribution of the isoforms of ALP from liver, bone, and bowel to total ALP; investigate elevations of ALP to determine the tissue of origin
 

Specimen Sources

 Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

 Blood

Container

Gold Top Tube

Collection Instructions

Container/ Tube: Gold top tube
Specimen: 1.6 ml Serum (0.8 mL min)
Patient Preparation: Patient should be fasting overnight. Patients who have B or O blood group and are secretors may have an elevated ALP about two hours after a fatty meal.


Note: Overnight fasting is preferred

Specimen Volume

1.6 ml Serum (0.8 mL min)

Transport Instructions

Refrigerated Serum

Specimen Stability

7 Days Room temperature or Refrigerated
3 Months Frozen

Methodology

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

Days Performed

TAT: 4-6 Days

Performing Laboratory

LabCorp

CPT

84075
84080
 
LOINC Code: 24332-9

PDM

 5903020

Only Orderable at Locations:

 Orderable Everywhere

Results
Component Name Base Name Common Name External Name
ALKALINE PHOSPHATASE TOTAL ALKPHOS ALK PHOS Alkaline P'tase Total
ALKALINE PHOSPHATASE INTESTINAL ALKPHOSINT ALK PHOS INTESTINAL Alkaline P'tase Intestinal
ALKALINE PHOSPHATASE BONE FRACTION ALK PHOS BONE FRACT Alk Phosphatase, Bone Specific
ALKALINE PHOSPHATASE LIVER ALKPHOSLIVER ALK PHOS LIVER Alkaline P'tase Liver

Result Interpretation

LIVER FRACTION
Age
(Male)		 Percentage Range
(Male)
0 to 6 m Not established
7 m to 5 y 3% to 50%
6 to 17 y 3% to 31%
18 to 100 y 13% to 88%
Age
(Female)		 Percentage Range
(Female)
0 to 6 m Not established
7 m to 5 y 3% to 51%
6 to 12 y 2% to 25%
13 to 100 y 18% to 85%
BONE FRACTION
Age
(Male)		 Percentage Range
(Male)
0 to 6 m Not established
7 m to 5 y 48% to 97%
6 to 17 y 67% to 97%
18 to 100 y 12% to 68%
Age
(Female)		 Percentage Range
(Female)
0 to 6 m Not established
7 m to 5 y 48% to 97%
6 to 12 y 69% to 97%
13 to 100 y 14% to 68%
INTESTINE FRACTION
Age
(Male)		 Percentage Range
(Male)
0 to 30 d Not established
1 m to 17 y 0% to 8%
18 to 100 y 0% to 18%
Age
(Female)		 Percentage Range
(Female)
0 to 30 d Not established
1 m to 17 y 0% to 8%
18 to 100 y 0% to 18%

 

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