5 Questions
Which of the following indicates partially compensated respiratory alkalosis?
PH ↑ PaCo2 ↑ HCO3 ↑
In compensated respiratory alkalosis, what is the status of PaCo2 and HCO3?
PaCo2 normal, HCO3 abnormal
What are the ABG interpretations for PH: 7.50, PaCO2: 31, HCO3: 25?
PH: Abnormal (Alkalosis), PaCo2: Abnormal (Respiratory alkalosis), HCO3: Normal
What does a PH of 7.47, PaCO2 of 33, and HCO3 of 20 indicate?
Partially compensated respiratory alkalosis
What does a combination of respiratory and metabolic alkalosis indicate in ABG interpretation?
PH abnormal, PaCo2 abnormal, HCO3 abnormal
Study Notes
ABG Interpretation Elements
- ABG Interpretation consists of four essential elements: pH, PaCO2, HCO3, and PaO2
- Normal ranges for each element:
- pH: 7.35-7.45
- PaCO2: 35-45 mmHg
- HCO3: 22-26 mEq/L
- PaO2: 80-100 mmHg
- Sao2: 95-99%
Interpretation of ABG Results
- Increased pH value:
- Indicates alkalemia or alkalosis
- Can be due to respiratory acidosis or metabolic alkalosis
- Decreased pH value:
- Indicates acidemia or acidosis
- Can be due to respiratory alkalosis or metabolic acidosis
Oxygen Therapy and Hypoxemia
- Oxygen therapy is indicated for hypoxemic patients
- Degree of hypoxemia:
- Mild: PaO2 < 80 mmHg
- Moderate: PaO2 < 70 mmHg
- Severe: PaO2 < 60 mmHg
Case Study Example
- Given values: pH 7.41, PaCO2 30, HCO3 18
- Interpretation:
- pH: Normal
- PaCO2: Abnormal (indicating respiratory alkalosis)
- HCO3: Abnormal (indicating metabolic acidosis)
Test your knowledge of ABG interpretation with this quiz. Identify the elements of ABG and their normal ranges, as well as the implications of increased or decreased values. Perfect for medical students and healthcare professionals.
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