Your patient is an 80-year-old man. He was previously diagnosed by his physician with bradycardia. This means the patient has a history of:

You have just inserted a large-bore catheter into the chest of a patient with a tension pneumothorax and received a return of air. Which of the following should NOT be done?

A) Insert a second, or even a third, catheter if the patient is symptomatic, despite the release of air. B) Leave the catheter in place, and create a flutter valve. C) Leave the catheter in place and open to air. D) Remove the catheter.

An example of an acute manifestation is:

a. arthritis. b. broken arm. c. Alzheimer's dementia. d. progressive multiple sclerosis.