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HelpTest Code DNAEL DNA extraction
Additional Codes
| Epic Ordering Code | LAB3040805 |
| NBS code | LBC13186 |
| Service code | 1030129 |
Specimen Requirements
Submit only one of the following:
| Container: | Container: | Container: |
| Purple Top | Sterile Container | Eppendorf Tube |
Processing Requirements
Specimen type: Whole Blood (in Purple Top EDTA tube)
Volume: 3.0 - 6.0 mL
Storage/transport requirements: Ambient or Refrigerated
Specimen type: Tissue (Umbilical cord, chorionic villi (CVS), tissue biopsies, products of conception (POC)) sent in Sterile Container with transport medium provided by Laboratory (10.0 mL)
Volume: For CVS and POC, minimum 20 mg. For all other tissue types, 10 - 25 mg.
Storage/transport requirements: Ambient or Refrigerated
Specimen type: Hair follicles (with bulbs intact) in Sterile Container
Volume: Minimum 20 hair follicles
Storage/transport requirements: Ambient or Refrigerated
Specimen type: Cultured cells in Eppendorf Tube (>90% confluence in HBSS)
Volume: 1 x 106 to 5 x 106
Storage/transport requirements: Ambient or Refrigerated
Specimen Stability
| Specimen Type | Whole Blood |
| Ambient | 7 days |
| Refrigerate | 7 days |
| Specimen Type | Tissue |
| Ambient | 48 hours from collection |
| Refrigerate | 48 hours from collection |
| Specimen Type | Cultured cells |
| Ambient | 12-24 hours from harvest |
| Refrigerate | 12-24 hours from harvest |
Days and Times Performed
TAT 3 days
Useful For
Extraction of human genomic DNA
Update
Last updated 08/06/2026
Referring / Testing Laboratory
National University Hospital
Genomics Diagnostic Laboratory, 67724384
Test Info
(a) This test was developed by NUH Laboratory Medicine.
(b) This laboratory test has undergone in-house evaluation with appropriate quality assurance and control measures in line with laboratory best practice and accreditation requirements.