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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Alkaline Phosphatase
Test Code39155
CPT Codes
84075<br>Restricted Client Code
Preferred Specimen
1 mL plasma collected in sodium heparin or lithium heparin (green-top) tube
Minimum Volume
0.5 mL
Other Acceptable Specimens
Serum collected in a serum separator tube (SST)
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Anticoagulants other than heparin
Methodology
Spectrophotometry
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
| Age | Male (U/L) | Female (U/L) |
| <6 days: | 46-245 | 46-245 |
| 7-14 days: | 69-306 | 69-306 |
| 15 days-1 month: | 113-412 | 113-412 |
| 1-5 months: | 104-450 | 104-450 |
| 6-11 months: | 100-334 | 100-334 |
| 1-9 years: | 117-311 | 117-311 |
| 10 years: | 128-396 | 128-396 |
| 11 years: | 125-428 | 100-429 |
| 12 years: | 123-426 | 69-296 |
| 13 years: | 100-417 | 58-258 |
| 14 years: | 78-326 | 51-179 |
| 15 years: | 65-278 | 45-150 |
| 16 years: | 56-234 | 41-140 |
| 17-19 years: | 46-169 | 36-128 |
| 20-49 years: | 36-130 | 31-125 |
| >49 years: | 35-144 | 37-153 |
Clinical Significance
Serum alkaline phosphatase levels are of interest in the diagnosis of hepatobiliary disorders and bone disease associated with increased osteoblastic activity. Moderate elevations of alkaline phosphatase may be seen in several conditions that do not involve the liver or bone. Among these are Hodgkin's disease, congestive heart failure, ulcerative colitis, regional enteritis, and intra-abdominal bacterial infections.
Elevations are also observed during the third trimester of pregnancy.
Elevations are also observed during the third trimester of pregnancy.
