Physiology

A 24-year-old man presents with two hours of palpitations. He is alert, has no chest pain, and his blood pressure is 124/76 mmHg. The radial pulse is regular at…

A 34-year-old man is seen in the medical tent 20 minutes after finishing a marathon run on a cool, overcast morning. He drank water at every drink station. He h…

A 4-year-old girl has had puffy eyelids each morning for two weeks and now has swollen legs and a distended abdomen. Her blood pressure is 96/58 mmHg. Urine tes…

A 74-year-old man is reviewed on the ward because he has become drowsy. He is cold and mottled to the mid-forearms. Pulse 108 beats per minute and regular; bloo…

A 62-year-old man describes tightness across the chest when he walks up the hill to his home; it settles within three minutes of rest. He first noticed it a mon…

A 24-year-old man is brought to the emergency department 40 minutes after he came off his motorcycle. He has a closed fracture of the right femur and a tense, s…