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Sodium CPT: 84295

Expected Turnaround Time

Within 1 day

Specimen Requirements

Specimen

Serum (preferred) or plasma.

Volume

1 mL

Minimum Volume

0.5 mL

Container

Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube.

Collection

Separate serum or plasma from cells within 45 minutes of collection. Label specimen as serum.

Storage Instructions

Maintain specimen at room temperature.

Stability Requirements

Temperature Period
Room Temperature 14 days
Refrigerated 14 days
Frozen 14 days
Freeze/thaw/ cycles Stable x 3

Patient Information

To determine whether your sodium level is within normal limits; to help evaluate electrolyte balance and to help determine the cause of and monitor the treatment for illnesses associated with abnormal sodium levels in the body.

If you are experiencing dehydration, problems with blood pressure, accumulating excess fluid (edema), or have non-specific symptoms; as part of a routine health examination.

A blood sample drawn from a vein in your arm; sometimes a random or 24-hour urine sample.