Test Name: 1,25-Dihydroxy Vitamin D 
Alternate Test Names 1,25D; Dihydroxy Vitamin D 
PLS Test Code 125D  Laboratory Biochemistry 
Specimen Blood  Analysis Performed On Serum 
Container Serum Separator Tube (SST)  Container colour White 
Multiple specimens  
Required Volume Adult (mL) Req Vol Paediatric (mL)
Reference Ranges 50 - 160 pmol/L 
Turnaround Time Routine 2 Weeks  Turnaround Time Urgent  
Turnaround Other  
Days test is performed Weekly  Transport  
Special Requirements Place on ice and deliver to laboratory WITHIN 4hrs of collection. 
Patient Preparation None 
Collection Instructions Venepuncture. 
Clinical Information  
Sent to Reference Laboratory Yes 
Ref Laboratory Name Royal Children's Hospital, Tel: Biochem (Core Lab) 03 9345 5906, Biochem 03 9345 5, Address: Laboratory Service, Flemington Road, Parkville VIC 3052 
Estimated Patient Fee N/A 
Last Updated 16-Apr-2008 (Version: 1.03)