Category
SPECIAL CHEMISTRY.
Sub Category
ENDOCRINE
Synonyms/Aliases
25-OH VITAMIN D; 25-HYDROXYCHOLECALCIFEROL.
Abbreviations
D2, D3
Type
INDIVIDUAL TEST
7 Days
RESULTS READY/ REPORTED IN3 HOURS
Method
IMMUNOASSAY
Temp
REFRIGERATED (2℃-8℃).
Setup
DAILY
Components Parameters
NOT APPLICABLE.
PRE-ANALYTIC CONSIDERATIONS
Test Ordering Instructions
FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.
Patient preparation
NO PREPARATION REQUIRED
Sample type
SERUM.
Container/ preservative
SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER.
Sample volume
AT LEAST 2ML
Rejection criteria
LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE.
Other Instructions
CENTRIFUGE SST (SERUM GEL TUBES) WITHIN 1-2 HOURS OF COLLECTION. CENTRIFUGE RED TOP VACUTAINERS AND ALIQUOT SERUM WITHIN 1-2 HOURS OF COLLECTION. THE SEPARATION VIAL MUST BE LABELED WITH AT LEAST 2 PATIENT IDENTIFIERS AND THE SAMPLE TYPE.
Reference intervals
VALUES DEFINING SUFFICIENT & INSUFFICIENT LEVELS ARE PROVIDED ON THE REPORT.
Clinical Utility
DIAGNOSIS OF VITAMIN D DEFICIENCY AND MONITORING SUPPLEMENTATION IN PATIENTS WITH BONE DISEASES SUCH AS RICKETS AND OSTEOMALACIA.
Test Limitations/ Confounders
RESULTS INFLUENCED BY RECENT INGESTION OF VITAMIN D SUPPLEMENTS (TEST THEN TREAT & NOT VICE VERSA).