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Test Code ABG ABG Analysis - Respiratory Care

Useful For

Helps to assess the acid-base status or respiratory oxygenation status of the patient. It is used in the management of respiratory and metabolic disorders such as asthma, chronic pulmonary disease, and diabetes. It is also used in the management of the patient during cardiovascular and pulmonary surgeries.

Patient Preparation

No special patient preparation required

Special Collection Instructions

Arterial collection. See Policy for current collection instructions and limitations.

Collection Method

Arterial collection, venous collection, capillary collection

Minimum Volume

0.5 mL

Container


Balanced Heparin Syringe

Preferred Specimen

Balanced Heparin Syringe

Acceptable Specimens

Arterial collection, venous collection, capillary collection, cord blood

Reference or Target Ranges

  Cord Blood Arterial
Adult
>13 years		 Aterial
Child
1 month -
13 years		 Arterial
Newborn
0 – 28 days		 Venous
Adult
>13 years		 Venous
Child
1 month -
13 years		 Capillary
Newborn		 Mixed Venous
General
PH Arterial
7.21 – 7.31
Venous
7.31-7.37		 7.35 – 7.45 7.35 – 7.45 7.30 – 7.45 7.31 – 7.45 7.30 – 7.45 7.27 – 7.42 7.34 – 7.36
PCO2
(mmhg)		 35 – 45 35 – 45 35 – 45 35 – 45 35 – 45 35 – 45 35 – 45 35 – 45
PO2
(mmHg)		 Arterial
9 – 19
Venous
21 – 31		 75 – 100 80 – 100 50 – 90 40 – 45 40 – 45 40 – 90 40 – 45
HCO3
mEq/L		 22 – 28 22 – 28 22 – 28 22 – 28 22 – 28 22 – 28 22 – 28 22 – 28
BE
(mEq/L)		 Arterial
-2 to +2
Venous
-5 to +5		 -5 to +5 -5 to +5 -5 to +5 -5 to +5 -5 to +5 -5 to +5 -5 to +5
Total Hb
(g/dL)		 N/A 12 – 15 10 – 14 10 – 22 12 – 15 10 – 14 14 – 24 12 – 15
Hct
%		 34 – 51 34 – 51 28 – 42 39 – 60 34 – 51 28 – 42 39 – 60 34 – 51
MetHb <2% <2% <2% <2% <2% <2% <2% <2%
COHb <2% <2% <2% <2% <2% <2% <2% <2%
O2 Saturation
%		 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100 80 – 100
FiO2
%		 21 – 100 21 – 100 21 – 100 21 – 100 21 – 100 21 – 100 21 – 100 21 – 100
Na+
(mmol/L)		 N/A 135 – 145 135 – 145 135 – 145 135 – 145 135 – 145 135 – 145 135 – 145
K+
(mmol/L)		 N/A 3.5 – 5.1 3.5 – 5.1 3.5 – 5.1 3.5 – 5.1 3.5 – 5.1 3.5 – 5.1 3.5 – 5.1
Ca++
(mmol/L)		 N/A 1.12 – 1.30 1.12 – 1.30 1.12 – 1.30 1.12 – 1.30 1.12 – 1.30 1.12 – 1.30 1.12 – 1.30
Lactate
(mmol/L)		 N/A 0.5 – 2.2 0.5 – 2.2 0.5 – 2.2 0.5 – 2.2 0.5 – 2.2 0.5 – 2.2 0.5 – 2.2

Reportable Units

Varies

Critical Value

  Cord Blood Arterial
Adult
>13 years		 Aterial
Child
1 month -
13 years		 Arterial
Newborn
0 – 28 days		 Venous
Adult
>13 years		 Venous
Child
1 month -
13 years		 Capillary
Newborn		 Mixed Venous
General
PH Arterial
Not Defined
Venous
Not Defined		 <7.2 or >7.6 <7.2 or >7.6 <7.2 or >7.6 <7.2 or >7.65 <7.2 or >7.6 <7.2 or >7.6 <7.2 or >7.6
PO2
(mmHg)		 Arterial
Not Defined
Venous
Not Defined		 <45 <55 <50 or >90        
Total Hb
(g/dL)		 N/A <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
MetHb >5% >5% >5% >5% >5% >5% >5% >5%
COHb >15% >15% >15% >15% >15% >15% >15% >15%
Na+
(mmol/L)		 N/A <120 or >160 <120 or >160 <120 or >160 <120 or >160 <120 or >160 <120 or >160 N/A
K+
(mmol/L)		 N/A <2.5 – >6.5 <2.5 – >6.5 <2.5 – >6.5 <2.5 – >6.5 <2.5 – >6.5 <2.5 – >6.5 N/A
Ca++
(mmol/L)		 N/A <0.75 or >1.45 <0.75 or >1.45 <0.75 or >1.45 <0.75 or >1.45 <0.75 or >1.45 <0.75 or >1.45 N/A
Lactate
(mmol/L)		 N/A >4.5 >4.5 >4.5 >4.5 >4.5 >4.5 N/A

Reasons for Rejection

 

Hemolysis Threshold N/A
Icterus Threshold N/A
Lipemia Threshold N/A
Other QNS, contaminated, improperly labled, improper specimen type

Specimen Stability

 

Ambient N/A
Refrigerated (4°C to 8°C) 30 Minutes
Frozen(-40°C to 0°C) N/A

Performance Information

 

Days and Time Performed 24/7
Expected Turn Around Time 60 minutes
Stat Availabilty Yes
Performing Bench Blood Gas Lab
Methodology/Method Description ABL90 FLEX – Blood Gas electrodes, electrochemistry

Special Handling

Send to RT lab on Ice

Panel Components

ABG A
  • pH
  • PCO2
  • pO2
  • BE
  • O2 Saturation
  • HCO3
ABG/Hct/Na/K/Ca
  • pH
  • PCO2
  • pO2
  • BE
  • O2 Saturation
  • HCO3
  • Hct
  • Na+
  • K+
  • Ca++
ABG/Na/K/Ca
  • pH
  • PCO2
  • pO2
  • BE
  • O2 Saturation
  • HCO3
  • Na+
  • K+
  • Ca++
ABG/CoOx/Na/K/Ca  
  • Hct
  • THb
  • O2 Sturation
  • O2Hb
  • METHb
  • COHb
  • Na+
  • K+
  • Ca++
ABG/CoOximetry
  • Hct
  • THb
  • O2 aturation
  • O2Hb
  • METHb
  • COHb