Test Directory

Test Code
FSPG
Test Name
Specific Gravity, Body Fluid
CPT Codes
84315
Expected Turnaround Time
1 day
Clinical Utility

Use to determine the specific gravity of body fluid to help differentiate transudate from exudate.

Specimen and Container Info

Specimen Type: Body Fluid

Preferred Collection Container: Red Top, Plain

Alternate Collection Container: Sterile, Non-additive Container

Minimum Acceptable Volume: 0.9 mL

Note: This volume does not allow for repeat testing.

Processing and Submission Instructions

Must state collection source of fluid.

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Refrigerated

7 days
Methodology
Refractometry
Performing Location
Roble Road Core Laboratory
Testing Schedule
Routine, daily