| Test | Alkaline Phosphatase (Alk Phos) |
| Department | Clinical Biochemistry, Rotherham NHS Foundation Trust |
| Comment | Alk Phos is measured as part of LFT and Calcium profiles |
| Sample type | Blood |
| Sample tube | Serum (brown top) or lithium heparin plasma (orange top) |
| Collection conditions | No restrictions |
| Minimum volume | 0.5 ml blood (100ul of serum absolute minimum) |
| Reference ranges (adult) |
Male and female = 30 - 130 U/L |
| Reference ranges (paediatric) |
Dependent on age. Elevated in neonates due to placental form Up to 300 U/L and in pre-term neonates up to 600 U/L. Up to about 500 U/L may be seen during growth spurts in children. |
| Author | Dr Robert Lord (Consultant) |
| Date | 07.04.11 |
| Interpretation | http://www.clinbiochem.info/labalkphos2.2.pdf NB Reference range is highly method dependent |
