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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
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?)
Unspun plasma separator tube; Unspun green-top tube (heparinized plasma not separated from cells); Anticoagulants other than lithium heparin, sodium heparin or fluoride/oxalate; Anticoagulants other than heparin
Methodology
Spectrophotometry
Setup Schedule
Set up: Daily; Report available: 1-2 days
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.
