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A 73-year-old woman with a chronic obstructive pulmonary disease, diabetes mellitus, and squamous cell carcinoma of the lung treated with right lower lobectomy in 2005 presents to the outpatient clinic with fevers, chills, myalgias, and headache. She admits to recently attending a social event five days ago, and several other attendees are experiencing similar symptoms. Clinical suspicion for COVID-19 is high, which of the following is the most appropriate medical management?

A 72 yo man presents to the UF Health ED with acute shortness of breath. Three days prior, he had just returned from a trip to Asia to visit his ailing sister. Since his return, he has not been feeling well, but he has attributed it to jet lag. A number of tests are conducted and the following clinical data are obtained with the patient breathing room air; pH = 7.26, PaO2 = 50 mm Hg, PaCO2 = 48 mm Hg, HCO3- = 21 mEq/L. His physiological dead space is measured and found to be at the predicted value for someone of his age, gender, and height. The mostly likely cause of the hypoxemia is

A 60 year old man with bacterial endocarditis (infection of the heart) develops acute onset of shortness of breath and hypoxemia. A chest x-ray is shown.   Which of the following is the most likely diagnosis?

Acute respiratory distress syndrome (ARDS) is characterized by which of the following?

What is the pathway of respiratory neuronal recruitment during active expiration?

In patients at high altitude, what is the most important aspect contributing to their hypoxemia?

With respect to the transport of CO2 in the blood, which of the following is true?

In the UF Health ED, you are evaluating a 65 year old male that is complaining of shortness of breath. He states that he was fine until an hour ago, when he started having difficulty breathing. He tells you that he has been fighting a cold for the past week, thought he was getting better, but now his cough has changed from dry, to productive and purulent. He also complains of chest pain when he takes a deep breath. He has a history of diabetes and hypertension. Upon physical exam, he has tachycardia, tachypnea, and decreased breath sounds in the right lower lobe. You also notice his SpO2 = 89% on room air. After starting the patient on oxygen therapy, how will you confirm his diagnosis?

From the following list which restrictive lung diseases is heavily associated with smoking?

A 64 yo female is evaluated for a 6-month history of dyspnea, cough, and weight loss. She has been diagnosed with recurrent pneumonia and has been treated with azithromycin and levofloxacin, without significant improvement. The patient has never smoked, has had no known environmental exposures, and has not traveled recently or been exposed to anyone with a similar illness. Her only medications are aspirin and a multivitamin. On physical examination, temperature is 37.8°C (100.0°F); other vital signs are normal. Cardiac examination is normal. There are scattered crackles in the mid-lung zones with associated rare expiratory wheezes. There is no digital clubbing. Musculoskeletal and skin examinations are normal. Chest imaging and a transbronchial biopsy was performed (see the three images).       Which of the following is the most likely diagnosis?