ABG

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ABG Compensation

• NURS 228 Complex Adult Nursing
• Spring 2009
• Tracy Heberlig, MSN, RN, CNE

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Back to the Basics

• Key Players
• Normal Values

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6 Steps of ABG Analysis

• Is the pH normal?
• Is the CO2 normal?
• Is the HCO3 normal?
• Match CO2 or HCO3 w/ pH
• Does CO2 or HCO3 go in opposite direction?
• Are pO2 and O2 sat normal?

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Compensation
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• Balance and Buffers
• Bodys way to balance the primary imbalance
• Partial vs. Full Compensation

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Compensation

• What can the lungs do?
• How will this impact the pH?
• What can the kidneys do?
• How will this impact the pH?
• Who compensates more quickly?

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Compensation

• Metabolic Acidosis
• Metabolic Alkalosis
• Respiratory Acidosis
• Respiratory Alkalosis

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Doctors Charting

• The lab test indicated abnormal lover function.
• Exam of genitalia revealed he is circus sized.
• Rectal exam revealed a normal sized thyroid.
• She stated that she was constipated most of her
  life until 1989 when she got a divorce.
• http//medi-smart.com/charting.htm

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Oxygen Administration

• Room Air (RA) 21
• Administration at gt concentration than RA
• Variable affecting O2 transport
• Cardiac output
• pO2
• Hgb
• Metabolic demand

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Oxygen Administration

• Acute vs. Chronic Deficit
• Symptoms of Hypoxia
• Clinical Considerations
• O2 is a drug
• Goal return to baseline
• Problems with excessive O2 use
• Combustible

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Oxygen Administration

• O2 Toxicity
• Methods of Delivery
• Nasal cannula
• Simple mask
• PRB
• NRB
• Venturi

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Oxygen Administration

• Patent Airway Devices
• Nasal airway
• Oral airway
• ET tube
• Tracheostomy

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