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Arterial Blood Gas (ABG)

Methodology

Radiometer ABL90

Performing Laboratory

Heart of the Rockies Regional Medical Center

Specimen Requirements

Must be collected at HRRMC

Specimen Type: Whole blood, arterial
Container/Tube:

Preferred: Safe PICO self-filling syringe

Acceptable: Dark-green top
Specimen Volume: 1 mL
Collection Instructions:

1. Specimen must be collected at HRRMC

2. Draw blood at least 20 minutes after  a ventilator adjustment.

3. If physician collects sample from femoral artery, then whole blood from a dark-green tube is appropriate.

4. Other arterial collections (brachial or radial artery) should be collected in Safe PICO self-filling syringe, but a dark-green tube is acceptable.

4. Specimen should be brought to the laboratory immediately.

Specimen Transport Temperature

Room Temperature, deliver ASAP

Reference Values

pH: 7.35-7.45

pCO2: 32-48 mmHg

tCO2: 22.30-28.4 mmol/L

pO2: 60-83 mmHg

HCO3: 20-28 mmol/L

Base Excess: -2.0-2.7 mmol/L

mO2 SAT: 90-95%

Applications: Traditional pH and blood gas analysis establishes the acid-base status of blood by measuring pH, pCO2, tCO2, HCO3, base excess and hemoglobin. It also gives information concerning the oxygen status of blood by measuring pO2, mO2, Saturation, O2 content and O2 capacity.

Day(s) Test Set Up

All

Test Classification and CPT Coding

 82805