Gayeon Jung (pronouns she/her/hers) is admitted to the emergency department with dyspnea, wheezing,

Gayeon Jung (pronouns she/her/hers) is admitted to the emergency department with dyspnea, wheezing, and lower leg edema. Gayeon’s spouse reports she has had increased shortness of breath for the past 2 weeks. Upon assessment, the client is pale, diaphoretic, and confused. She has type 2 diabetes mellitus, anemia, and emphysema and was admitted to the hospital last month due to COVID-19 and pneumonia. ​​ Which diagnostic test will provide the most accurate information about an alteration in gas exchange for a client with obstructive lung disease? Arterial blood gas Oxygen saturation Respiratory rate Chest radiograph

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