Sodium
| Order Code: | NA |
| Order Form: | Laboratory Requisition |
Specimen:
Plasma
Collection Medium:
 |
| Plasma Separator Tube |
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood in light green top tube or ONE microtainer for
pediatric patients.
Rejection Criteria:
Sodium heparin is not acceptable (elevates Na)
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Analytic Time:
1 hour (upon receipt in laboratory)
Reference Range:
135-145 mEq/L.
Pediatric Reference Ranges:
Age Range Units
Premature 130-140 mEq/l
Critical value: <120 mEq/l and >160 mEq/l
Test
Limitations:
Patients over a wide anion gap range demonstrated no significant sodium
bias.
Methodology:
Ion Selective Electrode
Sample
Processing:
Centrifuge at 3000 RPM for 10 minutes.
Aliquot plasma into labeled container and cap.
Aliquot plasma into labeled container and cap.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place specimen into zip-lock type bag, seal bag.
Place requisition into outside pocket of bag.
Ship ambient or refrigerate.
Place requisition into outside pocket of bag.
Ship ambient or refrigerate.
CPT Code:
84295
See also:
Sodium-Other, Body Fluid (e.g., surgical drain, pericardial, peritoneal, peritoneal dialysis, pleural, or synovial)
Sodium-Other, Body Fluid (e.g., surgical drain, pericardial, peritoneal, peritoneal dialysis, pleural, or synovial)
See Additional Information:
Chemistry Critical Lab Values
Chemistry Critical Lab Values