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Blood Gas Arterial with CO-Oximetry

Additional Codes

Cerner

Test Code Test Name
  Blood Gas Arterial with CO-Oximetry

 

Specimen Requirements

Preparation of Patient: 

Perform Allen Test and document in EHR.  If analyzing ventilation effectiveness allow 20 - 30 minutes of stable ventilation before specimen collection.

 

Container Type: 

Lithium Heparin Syringe

Capillary Tube (pediatric patients only)

Specimen Type:

Arterial Whole Blood

 

Specimen Volume: 

.5 mL whole blood  minimum 150uL

 

Specimen Handling/Transport:

Specimen must arrive within 10 minutes of draw.  Remove sharp and transport ambient room temperature

 

Specimen Stability/Storage:

Analyze within 30 minutes

 

Specimen Rejection:

Specimens collected > 30 minutes

Clotted specimens

Carbon monoxide > 7 days

< 150ul

 

Performing Laboratory

Munson Healthcare Laboratories - POC & Chemistry Department 

Note:  Testing is not performed in laboratory (performed in Respiratory Department) for Cadillac Hospital

Priority, Frequency, & Turnaround

Priority

STAT, ASAP, Non-Emergent

 

Frequency

7 days/week 24 hours/day

 

Turnaround

40 minutes from receipt in lab

Methodology

Amperometric Method pO2
Potentiometric Method pH, pCO2
Blood Conductivity Method HcT
Optical Measurement Co-Oximetry

 

Reporting

pH

Reference Range:

0 to 1 month 7.3 - 7.45

> 1 month 7.35 - 7.45

 

Critical Decision (automatic call-back): 

0 - 1 month < 7.21, > 7.49

> 1 month < 7.21, > 7.59

 

pCO2

Reference Range:

0 - 1 month 28 - 49 mmHg

> 1 month 35 - 45 mmHg

 

Critical Decision: (automatic call-back):

0 - 1 month < 28, > 69 mmHg

> 1 month < 31, > 69 mmHg

 

pO2

Reference Range:

0 - 1 month 50 - 80 mmHg

> 1 month 83 - 108 mmHg

 

Critical Decision: (automatic call-back):

0 - 1 month < 31, > 149 mmHg

> 1 month < 41 mmHg

 

HCO3 Bicarbonate (Derived Parameter)

Reference Range:

0 - 1 month 20 - 30 mmol/L

> 1 month 24 - 32 mmol/L

 

Critical Decision: (automatic call-back):

0 - 1 month < 17, > 34 mmol/L

> 1 month < 11, > 39 mmol/L

 

Base Excess (Derived Parameter)

Reference Range:

-2 - 3 mmol/L 

 

Critical Decision: (automatic call-back):

None

 

sO2 Oxygen Saturation 

Reference Range:

94‑98%

 

Critical Decision:(automatic call-back):

None

 

Hematocrit (Derived Parameter)

Reference Range:

0 – 1 month 29.2 - 60 %

Male > 1 month 40 - 50  %

Female > 1 month 35 - 45  %

 

Critical Decision: (automatic call-back):

0 – 1 month < 20.1, > 69 %

 

Total Hemoglobin (tHb)

Reference Range:

0 - 1 month  9.8 – 20 g/dL

Male > 1 Month 13.2 - 16.6 g/dL

Female > 1 Month 11.6 - 15 g/dL

 

Critical Decision: (automatic call-back):

0 - 1 Month  < 7.1, > 22.5 g/dL

> 1 Month < 6.2 g/dL

 

Oxyhemoglobin (O2Hb)

Reference Range:

94 - 100  %

 

Critical Decision: (automatic call-back):

None

 

Carboxyhemoglobin (COHb)

Reference Range:

0 - 1 Month  0 - 1.5 %

>1 Months  0 – 2 %

 

Critical Decision: (automatic call-back):

> 14.8 %

 

Methemoglobin (MetHb)

Reference Range:

0 - 1 Month 1 - 5  %

>1 Month  0 - 1.5  %

 

Critical Decision: (automatic call-back):

None

 

Deoxyhemoglobin (HHb)

Reference Range:

1 - 5  %

 

Critical Decision: (automatic call-back):

None

Clinical Significance

Crucial in aiding in the diagnosis and treatment for certain life-threating illnesses, such as acid base disturbances, electrolyte/metobolic imbalances, and the patient's capacity for oxygen delivery.

CPT Code(s)

82803