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HelpTest Code AlkPhos Alkaline Phosphatase
Aliases
ALP
Patient Preparation
No special patient preparation required
Collection Method
Venous collection
Minimum Volume
- Adults: 0.8ml
- Pediatric: 0.5mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (lithium heparin)
Reference or Target Ranges
| Age | Reference Range | |
| Male | 0 - 14 days | 83 - 248 U/L |
| 15days - 1 year |
122 - 469 U/L |
|
| 1 - 10 years | 142 - 335 U/L | |
| 10 - 13 years | 129 - 417 U/L | |
| 13 - 15 years | 116 - 486 U/L | |
| 15 - 17 years | 82 - 331 U/L | |
| 17 - 19 years | 55 - 149 U/L | |
| > 20 years | 40 - 129 U/L | |
| Female | 0 - 14 days | 83 - 248 U/L |
| 15days - 1 year | 122 - 469 U/L | |
| 1 - 10 years | 142 - 335 U/L | |
| 10 - 13 years | 129 - 417 U/L | |
| 13 - 15 years | 57 - 254 U/L | |
| 15 - 17 years | 50 - 117 U/L | |
| 17 - 19 years | 45 - 87 U/L |
| > 20 years | 35 - 104 U/L according to manufacturer's instructions |
| > 20 years | 35 - 129 U/L according to data analysis on adult females who presented to MUHC in 2022 without significant diagnosis. Clinical judgement is advised. |
Reportable Units
U/L
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | 20 mg/dL |
| Icterus Threshold | 60 mg/dL |
| Lipemia Threshold | 2000 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
| Ambient | 7 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 2 months |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | UH Chemistry, WCH Chemistry |
| Methodology/Method Description | Roche Cobas – Colorimetric assay |
CPT Codes
84075