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In a COPD patient ABG (Arterial Blood Gases) is decreasing and he is close to respiratory failure, the nurse should first assess the patient:

In a COPD patient ABG (Arterial Blood Gases) is decreasing and he is close to respiratory failure, the nurse should first assess the patient: Correct Answer Cyanosis

Concept:-

  • COPD (chronic pulmonary disease): it can define as a disease characterized by progressive airflow limitation that is not fully reversible. The airflow limitation is usually both progressive and associated with an abnormal inflammatory response of the lungs to noxious particles or gases.
  • ABG (Arterial blood gases): an arterial blood gas analysis is a blood test taken from an artery that measures the amount of oxygen and carbon dioxide that is found in the blood.

Explanation:

Cyanosis:

  • It is a bluish or purplish tinge to the skin and mucous membranes.
  • Approximately 5 g/dl of deoxygenated hemoglobin in the capillaries generates the dark blue color appreciated clinically as cyanosis.
  • It is recognized at a higher level of oxygen saturation in patients with polycythemia and at a lower level of oxygen saturation in patients with anemia

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