How do you interpret a normal ABG pH?
The first value is the pH, which measures how many hydrogen ions (H+) are in the sample. This determines if the blood is acidotic or alkalotic. Normal values for pH range from 7.35 – 7.45….Normal ABG Levels.
| pH | Hydrogen | 7.35 – 7.45 |
|---|---|---|
| PaCO2 | Carbon dioxide | 35 – 45 mmHg |
| HCO3- | Bicarbonate | 22 – 26 mmol/L |
How do you interpret an ABG?
Rules for rapid clinical interpretation of ABG
- Look at pH – < 7.40 – Acidosis; > 7.40 – Alkalosis.
- If pH indicates acidosis, then look at paCO2and HCO3-
- If paCO2is ↑, then it is primary respiratory acidosis.
- If paCO2↓ and HCO3- is also ↓→ primary metabolic acidosis.
- If HCO3-is ↓, then AG should be examined.
What is a common cause of respiratory acidosis?
Respiratory acidosis involves a decrease in respiratory rate and/or volume (hypoventilation). Common causes include impaired respiratory drive (eg, due to toxins, CNS disease), and airflow obstruction (eg, due to asthma, COPD [chronic obstructive pulmonary disease], sleep apnea, airway edema).
What is the symptoms of respiratory acidosis?
Respiratory acidosis is a condition that occurs when the lungs can’t remove enough of the carbon dioxide (CO2) produced by the body. Excess CO2 causes the pH of blood and other bodily fluids to decrease, making them too acidic….Symptoms of respiratory acidosis
- headache.
- anxiety.
- blurred vision.
- restlessness.
- confusion.
What are nursing interventions for respiratory acidosis?
Nursing Interventions & Considerations
- Remain alert for critical changes in patient’s respiratory, CNS and cardiovascular functions.
- Maintain adequate hydration.
- Maintain patent airway and provide humidification if acidosis requires mechanical ventilation.
- Institute safety measures and assist patient with positioning.
What happens if respiratory acidosis is not treated?
Severe respiratory acidosis is a medical emergency and requires immediate medical attention. If you suspect symptoms are developing, seek evaluation right away. If left untreated, major complications may ensue, including organ failure, shock, and even death.