Laboratory: Clinical Biochemistry
Test Name:
CHLORIDE (iSTAT) - (B)
Test Code: CLWB
Clinical Information:
Only available in rural Manitoba.
For WRHA and Westman see CHLORIDE - (P)

State whether the sample is venous or arterial.
 
Collection Devices:
Specimen Required: Skin puncture: lancet and capillary collection tube (plain, lithium heparin, or balanced heparin for electrolytes and blood gases)
Venipuncture:  lithium or sodium heparin collection tubes and disposable transfer device
(e.g. 1cc syringe and a 16 to 20 gauge needle)
Arterial puncture:  Plain syringe or blood gas syringe with heparin and labeled for the assays performed
Referral:

Only available at sites which perform iStat testing onsite.
Requisition:
Reference Values:
Venous & Capillary:  98 - 109 mmol/L
Arterial:  98 – 109 mmol/L

Note:  Reference ranges are specific to the Abbott iStat (POC instrument)
 
Availability:
Turn around time (TAT): < 60 minutes
See Also:
More Information:
Interferences:
Substance                 Concentration Producing Interference Maximum Expected In Vivo Concentration
β-Hydroxybutyrate 16 mmol/L Increase (+) CL by 3 mmol/L­
Bromide 12.5 mmol/L Increase (+) CL by 30 mmol/L­
Lactate 11 mmol/L Increase (+) CL by 3.5 mmol/L­
Salicylate 4 mmol/L Increase (+) CL by 5 mmol/L­
Thiocyanate 24 mmol/L May cause falsely elevated chloride results