About CG4+

With i-STAT CG4+, healthcare professionals can obtain blood gas and lactate levels in approximately two minutes without leaving the patient’s side. i-STAT CG4+ provides rapid lactate results at the point of care. Using those results, clinicians may quickly determine illness severity and identify those that may be at risk of higher mortality. With this insight, Emergency Departments can direct immediate resources and care to those that need it most.

Through the detection of hyperlactatemia, healthcare providers can rely on i-STAT CG4+ as a valuable tool in the risk stratification of patients diagnosed with sepsis. Serial lactate measurements over the early diagnostic and treatment period can assist in monitoring treatment progress.

For an overview of i-STAT System test cartridges, browse the Test Cartridge Menu.


Results in ≈2 Minutes

Providing lab-quality results fast when every
minute counts.


Ordering CG4+ cartridges and other i-STAT System products is easy using our e-Abbott portal.

Order CG4+

Cartridge Details

chemistries_electrolytes.pngChemistries/Electrolytes  blood_gases-icon.pngBlood Gases
Base Excess (BE)*

The test for lactate, as part of the i-STAT System, is intended for use in the in vitro quantification of lactate in arterial, venous, or capillary whole blood.
The i-STAT lactate test is useful for (1) the diagnosis and treatment of lactic acidosis in conjunction with measurements of blood acid/base status, (2) monitoring tissue hypoxia and strenuous physical exertion, and (3) diagnosis of hyperlactatemia.




Useful for the diagnosis and treatment of lactic acidosis and hyperlactatemia

Sample Size:


Sample type:

Arterial, Venous, or Capillary Whole Blood

Part Number:


Expected Values

chemistries_electrolytes.pngChemistries/Electrolytes blood_gases-icon.pngBlood Gases
Reportable Range Reference Range (Arterial) Reference Range (Venous)
Lactate 0.30-20.00 mmol/L,
2.7-180.2 mg/dL
0.36-1.25 mmol/L, 3.2-11.3 mg/dL 0.90-1.70 mmol/L, 8.1-15.3 mg/dL
pH 6.5-8.2 7.35-7.45 7.31-7.41
PCO2 5-130 mmHg 35-45 mmHg 41-51 mmHg
PO2 5-800 mmHg 80-105 mmHg  
TCO2* 5-50 mmol/L 23-27 mmol/L 24-29 mmol/L
HCO3* 1.0-85.0 mmol/L 22-26 mmol/L 23-28 mmol/L
Base Excess (BE)* (-30)-(+30) mmol/L (-2)-(+3) mmol/L (-2)-(+3) mmol/L
sO2* 0-100% 95-98%  


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