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


Sunquest Code:STAT4V  
Epic Code:POC203Epic Name:ISTAT Gases Lactate Ven POCT
Synonyms:CG4; Blood Gas; Lactic Acid
Methodology:Electrochemistry
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 (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  (Range, UMMC-East Bank, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center)


Interpretive

Critical Range:
 
pH Less than 7.2 Greater than 7.60
pCO2 Less than 20 mmHg Greater than 75 mmHg
pO2, arterial Less than 40 mmHg  
pO2 capillary Less than 30 mmHg  
Bicarbonate Less than 11 mmol/L Greater than 45 mmol/L
Lactate   Greater than or equal to 3.9
Reference Range:
pH
0-127 y venous 7.32-7.43
 
pCO2
0-127 y venous 40-50 mmHg
 
pO2
0-127 y 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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