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25-Hydroxyvitamin D (25OHD) [Vitamin D]

Test Code:

BC6451

Synonym(s):

Specimen Container

Gel separator tube (Adult)
Microtube (Paeds)

Specimen Requirement

Plain Blood
Adult: 5 mL
Paediatric: 1.3 mL


Invert blood 5 times after blood collection ensures the clot activator is well mixed with the blood. This will ensure results are reliable.

Specimen Storage / Transport

 

Method

 

Orderable as STAT?

No

Turn Around Time

1 to 4 days (Refer to date and time performed)

Reference Value(s)

Reference interval for all age groups: 20.0 - 100.0 ng/ml

Vitamin D status is classified according to serum levels of 25-Hydroxyvitamin D as follows:-
Deficiency : <12.0 ng/mL
Insufficiency: 12.0 to <20.0 ng/mL
Sufficiency: 20.0 to 100.0 ng/mL
Potential toxicity: >100.0 ng/mL

Testing Laboratory Location

KKH

Laboratory

Clinical Chemistry

Contact Number

6394 1383

Day and Time Performed

Tuesday and Friday

Orderable on CPOE?

Yes

Additional Information

New reagent formulation (Roche Elecsys Vitamin D total III) on 25th March 2022, no change in reference intervals

Change History Notes

Others

Keywords

25-Hydroxyvitamin D (25OHD) [Vitamin D] Vitamin D Total II Vit D BC6451
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