Home
HelpTest Code GRAV Body Fluid Specific Gravity
Specimen and Container/Tube
Specimen Type: Body fluid (not CSF)
Preferred Specimen: Sterile container
Other Acceptable specimens: Not applicable
Volume
Preferred Volume: 4.0 mL
Minimum Volume: 1.0 mL
Specimen Stability
|
Storage Temperature |
Stability |
|
Room temperature (20 - 25°C) |
4 hours |
|
Refrigerated (2 - 10°C) |
24 hours |
|
Frozen (-20°C) |
not acceptable |
Collection Instructions
Collect specimen per standard laboratory collection procedures.
Specimen Handling and Transport Instructions
UCMC Onsite Instructions: Collect specimen per standard collection procedure and send to laboratory immediately.
UCMC Offsite and UC MedLab Outreach Instructions: Collect specimen per standard collection procedure and send to laboratory immediately. Specimens must be received within 4 hours. If transport is delayed, refrigerate specimens prior to transport.
Rejection Criteria
- Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits.
- Frozen or heated specimens will be rejected
- Clotted or quantity not sufficient specimens are not suitable for testing and will be rejected.
Reference Values
Not applicable
Critical Values
Not applicable
Clinical Indications
- May aid in the distinction between transudative and exudative fluid
Test Components
Specific gravity
Methodology
Refractometer
CPT Codes
84315
LOINC Codes
GRAV 35414-2
Additional Information
Not applicable
Turnaround Time
Turnaround times are relative to the time the specimen is received in the test laboratory.
STAT Turnaround Time: Not available STAT
Routine Turnaround Time: 24 hours
Testing Schedule: 24/7
Synonyms/Search Keywords
Fluid specific gravity
Last Reviewed Date
8/12/2024