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 #

OSMOLALITY, SERUM

Message
Chemistry


Test Code
LAB107


CPT Codes
83930

Preferred Specimen
Gold top (serum separator tube)


Minimum Volume
Whole blood: 300 uL (one red top microtainer)

Serum: 20 uL


Other Acceptable Specimens
Red Top tube acceptable


Instructions
Should be adequately clotted before centrifugation. Specimen can be refrigerated at 2 to 8°C or stored room temperature for up to 48 hours. These specimens should be tested immediately or up to 48 hours of collection.  


Specimen Stability
Refrigerated: 48 hours
​Room temperature: 48 hours


Methodology
Freezing-Point Thermodynamics

Report Available
Same day


Reference Range
Age 0-61: 275 - 295 MOSM/KG
Age >61: 280 - 301 MOSM/KG




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.