Abbott i-Stat CG4 + Venous - Point of Care Testing (POCT)


Abbrev Code:STAT4V   
Order Code:POC203Order Name:ISTAT CG4+ Gases Lactate Venous POCT
Synonyms:CG4; Blood Gas; Lactic Acid
Methodology:Electrochemistry
CPT Codes: 82803 x1, 83605 x1
Test Includes:Venous pH, pCO2, pO2, HCO3, BE, sO2, Lactate
Turnaround Time:Performed daily; results are available immediately.


Collection Instructions

Specimen:Blood
Optimal Volume:0.5 mL
Minimum\Peds Volume:0.1 mL
Container:See Collection Instructions
Alternate Containers: Dry heparin syringe
Collection Instructions:For blood gases: Test immediately. Must be tested within 10 minutes of collection. Avoid or remove immediately any air drawn into syringe to maintain anaerobic conditions, If not tested immediately, re-mix sample by rolling syringe between palm for at least 5 seconds each in two different directions, then invert the syringe repeatedly for at least 5 seconds. Discard the first two drops of blood.
Causes for Rejection:Specimen not tested within 10 minutes of collection.


Processing and Shipping

Stability:Test immediately; must be tested within 10 minutes of collection.For questions, contact the point of care team at your facility.
Test Performed at or Referral Lab Point of Care  (CSC Mpls, Northland, Range, Ridges, Southdale, UMMC East Bank, UMMC/UMMCH-West Bank)


Interpretive

Critical Range:
 
pH Less than 7.2 Greater than 7.60
pCO2 Less than 20 mmHg Greater than 75 mmHg
pO2 capillary Less than 30 mmHg  
dHCO3 Less than 11 mmol/L Greater than 45 mmol/L
Lactate   Greater than 3.9
Reference Range:
pH
All ages venous 7.32-7.43
 
pCO2
All ages venous 40-50 mmHg
 
pO2
All ages venous 25-47 mmHg
 
dHC03
0-1 y venous 16-24 mmol/L
2 y & older venous 21-28 mmol/L
 
Lactate
All ages 0.7-2.0 mmol/L
Use:Monitor blood gases and lactate values at the patient's bedside.


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