VITAMIN B12
| Synonyms: | Cyanocobalamin |
| Computer Code: | (B12) |
| Specimen Collection: | 3 mL blood (light green top (Li Heparin) preferred. Red/gold acceptable). |
| Minimum Volume: | 1 mL |
| Handling Instructions for Offsite Areas: | If red or gold top tube, allow to clot. All tube types should be centrifuged for 20 minutes and refrigerated. Serum must be removed from red top tube. Min 0.5 mL serum/plasma. |
| Reference Values: | Male: 0-1 year 292-1206 pg/mL 2-3 years 264-1215 pg/mL 4-6 years 245-1076 pg/mL 7-9 years 271-1169 pg/mL 10-12 years 183-1087 pg/mL 13-18 years 214-864 pg/mL >18 years (Adult) 180-914 pg/mL Female: 0-1 year 227-1512 pg/mL 2-3 years 416-1208 pg/mL 4-6 years 313-1405 pg/mL 7-9 years 246-1173 pg/mL 10-12 years 196-1018 pg/mL 13-18 years 181-819 pg/mL >18 years (Adult) 180-914 pg/mL |
| Lab Code: | Chemistry |
| Requisition: | SPEC C |
| Test Frequency: | Daily |
| Routine TAT: | 4 hrs |
| Stat TAT: | 60 min |
| CPT Code(s): | 82607 |
| LCD or NCD: | |
| Methodology Used: |
See Addendum XVII |