KR is a 57-year-old female who presents to the emergency department complaining of shortness of breath of recent onset. She has a history of and is currently being treated for non-small cell lung cancer. She is alert and oriented and visibly short of breath. Her respiratory rate is 32, temperature is 98.7o F. SpO2 on room air is 93%. She is not coughing.
Use the Auscultation and Blood Pressure tabs to capture heart rate, blood pressure and lung sounds.
Which of the following is the best diagnostic test to perform at this time?
a. arterial blood gases