Osmolality (Plasma)

Message

Available STAT
Performed in the Chemistry department.x5820
10.2018

Test Code

OSMO

CPT Codes
83930

Preferred Specimen

Plasma from a green top (PST) tube

Minimum Volume

2 mL

Transport Container

Green Top (PST) tube

Transport Temperature

Room temperature

Specimen Stability

2 - 8 ^oC: 2 days

Methodology
Freezing point

Setup Schedule

This assay is performed 24 hours per day, 7 days per week

Reference Range

278 - 303 mOsm/k

Clinical Significance

This test is used to evaluate electrolyte and water balance.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.