Test Name: 25-Hydroxy Vitamin D 
Alternate Test Names 25D; Cholecalciferol; Vitamin D; Vitamin D3 
PLS Test Code 25D  Laboratory Biochemistry 
Specimen Blood  Analysis Performed On Serum 
Container Serum Separator Tube (SST)  Container colour White 
Multiple specimens OR Lithium Heparin Gel Tube OR EDTA Tube 
Required Volume Adult (mL) Req Vol Paediatric (mL)
Reference Ranges Moderate to severe Vitamin D deficiency: <25 nmol/L, Vitamin D Insufficiency: 25 - 50 nmol/L, Optimal target range for bone health: 50 - 150 nmol/L, Vitamin D toxicosis reported above 200 nmol/L. 
Turnaround Time Routine 1 Week  Turnaround Time Urgent  
Turnaround Other  
Days test is performed Weekly  Transport Room temperature 
Special Requirements None 
Patient Preparation None 
Collection Instructions None 
Clinical Information  
Sent to Reference Laboratory No 
Ref Laboratory Name  
Estimated Patient Fee N/A 
Last Updated 24-Jul-2008 (Version: 1.01)