Methodology
Quantitative Ion-Selective Electrode
Synonyms
CL
Specimen Type
Body Fluid
Performing Lab
ARUP
Epic ID
Other Reference Test
Lab Test Days
Daily
Standard TAT
24 Hours from receipt of sample
Collection Information
Specimen Required
0.2-1 mL Body Fluid (CSF, Drain, Pancreatic, Pericardial, Peritoneal/Ascites, or Pleural fluid)
Container Type
Sterile Container
Processing Information - Lab Use Only
Transport Temperature
Room Temp-OK/Refrigerated-OK/Frozen-OK
Specimen Stability
Room Temp: 1 Week; Refrigerated: 1 Week (preferred); Frozen: 6 Months
Rejection Criteria
Specimen types other than those listed; Specimens too viscous to be aspirated by instrument; Specimens containing sodium fluoride/potassium oxalate as anticoagulants
Test Volume Required
1 mL Body Fluid
Minimum Test Volume
0.2 mL Body Fluid
Processing Instructions
Centrifuge to remove cellular material. Transfer 1 mL body fluid into a transport tube. Complete an ARUP requisition and submit with specimen refrigerated. Send with Apollo Courier Service pick up Monday-Friday.
CPT Codes
82438
Revised
5/14/25
Initials
SA