A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Body Fluid Specific Gravity

Message
Performed in the Hematology Laboratory x5475, 76.


Test Code
BFSG


CPT Codes
84315

Preferred Specimen
Body Fluid  (CSF, ascites, peritoneal, pleural)


Minimum Volume
0.5 mL


Transport Container
CSF in sterile screw cap tube, 3 mL Purple top (EDTA), or other sterile container for all other fluid types


Transport Temperature
Room Temperature


Specimen Stability
Stable for 4 hours at RT or up to 24 hours at 2-8° C


Methodology
refractometry

Setup Schedule
24/7


Limitations
test cannot be performed on extremely viscous fluids


Reference Range
1.010-1.014 mg/dL for most body fluids


Clinical Significance
To assess whether a body fluid is an exudate or a transudate.  Specific gravity is >1.015 in exudates and < 1.015 in transudates. 




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.