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The test yields information that can guide the management of acute and chronic illnesses. This information indicates a patient's acid-base balance, the effectiveness of their gas exchange and the state of their ventilatory control. Interpretation of an arterial blood gas result should not be done without considering the clinical findings.The results change as the body compensates for the underlying problem. Factors relating to sampling technique, specimen processing and environment may also influence the results.
Arterial blood gas analysis is a common investigation in emergency departments and intensive care units for monitoring patients with acute respiratory failure. It also has some application in general practice, such as assessing the need for domiciliary oxygen therapy in patients with chronic obstructive pulmonary disease. An arterial blood gas result can help in the assessment of a patient's gas exchange, ventilatory control and acid–base balance.
Values measured in the test:
- The acidity or basicity of the blood (ph);
- Partial pressure of carbon dioxide in the blood;
- Partial pressure of oxygen in the blood;
- Level of bicarbonate in the blood;
- Base-excess of bicarbonate in the blood.
In the app you will find:
- Different approaches;
- Hydroeletrolitic balance;
- Acid-base balance;
- Anion Gap Calculators and many other calculators.
Also, you will find how to treat, the concept of each of the approaches and the clinical manifestations.
Many methods exist to guide the interpretation of the ABG, the most common one is the anion gap, using the Henderseon-Hasselbach equation.
Purposes for testing:
- Diabetic ketoacidosis;
- Lactic acidosis;
- Metabolic acidosis;
- Respiratory acidosis;
- Respiratory alkalosis.
- Urinary anian gap to determine if the loss is extrarenal or renal etiology.
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