SODIUM, SERUM/PLASMA
| Synonyms: | Na, Serum Na, Plasma |
| Computer Code: | NA |
| Specimen Collection: | 2 mL blood (light green top (Li Heparin) preferred. Red/gold acceptable). Pediatrics: 0.5 mL lithium (light green top (Li Heparin) preferred. Red/gold acceptable). |
| Minimum Volume: | 0.5 mL |
| Handling Instructions for Offsite Areas: | Allow to clot, centrifuge for 20 minutes, refrigerate. Serum must be removed from red top tube. |
| Reference Values: | 135-145 MEQ/L Critical Value: < or equal to 120 mEq/L > or equal to 160 mEq/L |
| Lab Code: | Chemistry |
| Requisition: | C/H |
| Test Frequency: | Daily |
| Routine TAT: | 2 hrs |
| Stat TAT: | 45 min |
| CPT Code(s): | 84295 |
| LCD or NCD: | |
| Methodology Used: |
See Addendum XVII |