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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?

In order to gain a competitive advantage for you participation in the UF Grad Cup Olympics, you train at high altitude. After three months of training, your hemoglobin concentration has increased to 17.5 g/dL. As you return to Gainesville and show up at the Southwest Rec Center to start the competition, what is your arterial oxygen content (mls/dL)?

A 47 year old woman is killed in an automobile accident. She had a history of progressive shortness of breath and fatigue and two years ago was diagnosed with pulmonary hypertension. Which of the following is most likely to be present in her lungs at autopsy?

A 4 yo boy is brought to the UF Health ED with acute shortness of breath. He had been playing with some plastic toys in his bedroom when a piece of a toy broke off and became lodged in his lungs. He immediately began coughing and gagging for about 1 minute. He is not current on vaccinations as his parents do not believe in them. He is otherwise healthy. Upon X-ray, which region of the respiratory system is most likely to appear abnormal?

What is the main side effect of Fluticasone as used in asthma?

A 55-year-old woman who tested positive for Sars-CoV-2 presents with complete anosmia, but reports no respiratory symptoms. After three weeks, she experiences her first olfactory sensations and her sense of smell returns after two months. Which cell in this image of olfactory epithelium stained with H&E functions as a stem cell to restore olfaction in this patient?