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DictionaryMedical term start from AABG (Arterial Blood Gas)

ABG (Arterial Blood Gas)

ABG stands for Arterial Blood Gas, which is a diagnostic test that measures the levels of gases, such as oxygen and carbon dioxide, as well as the acidity and the amount of bicarbonate in the blood. This test provides valuable information about the respiratory and metabolic functions of the body, as well as the acid-base balance.

The ABG test is typically performed on arterial blood, which is drawn from an artery, usually in the wrist, using a syringe. The blood is then analyzed in a laboratory, and the results are used to evaluate a patient’s respiratory and metabolic status.

The ABG test measures several key parameters, including:

  1. Oxygen saturation (SaO2): The amount of oxygen that is bound to hemoglobin in the blood. This measurement is used to assess the efficiency of the lungs in oxygenating the blood.
  2. Partial pressure of oxygen (PaO2): The pressure of oxygen dissolved in the arterial blood. This measurement is used to evaluate the oxygen-carrying capacity of the blood.
  3. Partial pressure of carbon dioxide (PaCO2): The pressure of carbon dioxide dissolved in the arterial blood. This measurement is used to assess the effectiveness of the lungs in removing carbon dioxide from the blood.
  4. pH: The measure of acidity or alkalinity of the blood. This measurement is used to evaluate the acid-base balance in the body.
  5. Bicarbonate (HCO3-): The concentration of bicarbonate ions in the blood. This measurement is used to assess the metabolic status of the body.

The ABG test is commonly used in critical care settings, such as intensive care units (ICUs) and emergency departments, to monitor the respiratory and metabolic status of patients with severe or life-threatening conditions, such as respiratory failure, shock, or acid-base disturbances. The results of the ABG test can help clinicians to diagnose and manage these conditions and to adjust the patient’s treatment plan accordingly.

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