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SPECIFIC GRAVITY, BODY FLUID

Mnemonic

CSF SG 1, BF SG

Synonym

Specific Gravity Body Fluid - Specific Gravity CSF - Relative Density

Specimen Collection Requirements

Collect

Body fluid or CSF in sterile container

Preferred Volume

1.0 mL

Minimum Volume

0.5 mL

Transport

Refrigerated

Rejection Criteria

Frozen specimen, specimen submitted on swab, completely clotted specimen

Stability

OPENED (top removed post collection) Ambient: 4 hours; Refrigerated: 4 hours; UNOPENED Ambient: 8 hours; Refrigerated: 24 hours

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Refractometry

Reference Values

Reference Values

Not established.

CPT Codes

84315

Last Updated: Thursday, March 14, 2019 12:51:08 PM


Client Services: 503-413-1234