Blood Gas, Arterial

Test Code

ABG, ABG2, ABG3, EABG2

Alias/See Also

ABG, ABG2, ABG3, ABGOR, EABG, EABG2, EPOC Arterial Blood Gas

CPT Codes
82803

Includes

pH, pCO2, pO2, and calculated values

Preferred Specimen

Syringe, Li Heparinized (SYR)

Minimum Volume

150 uL
92 uL for EPOC

Instructions

Correct sample handling is critical to ensure that the blood gas values obtained accurately reflect the in vivo state. Ensure samples are well mixed. Analyze within 30 minutes of draw time. Storing samples on ice is NOT recommended.

Methodology
Nova, IL Gem, Radiometer, EPOC

Setup Schedule

24x7

Report Available

<15 minutes

Reference Range

Test-ABG	Age and Gender	Reference Range	Critical Low	Critical High
APH	0-3 Months	7.35-7.45	<7.25	>7.46
	> 3 Months	7.35-7.45	<7.24	>7.60
APCO2 mm{HG}	0-3 Months	32-45	<30	>80
	Female > 3 Months	32-42	<20	>60
	Male > 3 Months	35-45	<20	>60
APO2 mm{HG}	0-3 Months	75-100	<45
	> 3 Months	75-100	<50
AOSAT %	All	95-98
AHCO3 mmol/L	ALL	21-28	<10	>40
ATCO2 mmol/L	ALL	22-29

Clinical Significance

pH, pCO2, and pO2.
Whole blood measurement of blood gases is used in the diagnosis and treatment of life-threatening acid-base disturbances in critically ill patients with numerous metabolic and pulmonary diseases.

pH: pH is the measure of the amount of acidity or alkalinity or hydrogen ion concentration in the blood.
pCO2: The partial pressure or tension of carbon dioxide in solution is defined as the partial pressure of carbon dioxide in the gas phase in equilibrium with the blood.
pO2: The partial pressure or tension of oxygen in solution is defined as the partial pressure of oxygen in the gas phase in equilibrium with the blood. pO2 provides an indication of the availability of oxygen in inspired air.

Performing Laboratory
CRMC Laboratory
CCMC Laboratory
FHSH Laboratory
EPOC POCT at CRMC and CCMC

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.