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St. John Health System
Lab Catalog


Index:

pH Serous Fluid

Order Name SRS PH
Test Number: 3500350
Revision Date 03/06/2020
Test Name Methodology LOINC Code
pH Serous Fluid
2748-2 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Serous Fluid Sterile Screwtop Container On Ice
Instructions Venous blood is often drawn simultaneously.
Note fluid type on requisition and container.
Specimen must be on ice after collection. Deliver to lab immediately.
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days 
Clinical Use Useful in assessing acid-base balance. 
CPT Code(s) 83986
Internal Comments 3/6/2020 not updated since go live on website 6-11-2003 - just made processing instructions more visible. - JK
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Chemistry