A 50-year-old man comes to the office for an emergency visit complaining that an old, large silver filling fell out of his tooth this morning while he was eating breakfast. He can feel the vold in his tooth and can
see it when he opens his mouth and looks in the mirror, and the tooth is sensitive to cold. His concern is
that he does not have time to stay for a long appointment today as he has a flight to catch in a few hours
and will be away on business for the next week. The patient asks whether there is anything the dentist
can do quickly to make him comfortable over the next week until he returns from his trip. What can be
done?

A92-year-old man with a 45-year history of chronic obstructive pulmonary disease is intubated in the icu because of a bout of viral pneumonia that fails to improve after 72 hours of antibiotics. although the inspired fraction of oxygen is 100%, the patient's po2 remains at 57 mmhg. positive-end expiratory pressure (peep) is added to allow the inspired fraction of oxygen. twelve hours after the introduction of peep the patient suddenly become hypotensive. at the same time, his oxygen saturation drops from 92% to 61%. on physical examination, his bp is 80/50 mmhg and his pulse is 124/min. he has distended neck veins and distant heart sounds. which of the following would also most likely be seen on this patient's physical examination? - absence of breath sounds in the right hemithorax- high amplitude carotid artery upstroke- a pleural friction rub- pulsus alternans- splenomegaly