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, swollen thigh. He is alert but restless. Pulse 116 beats per minute, blood pressure 116/94 mmHg, respiratory rate 24 per minute. His hands are cool and capillary refill takes four seconds. He has passed 10 mL of urine in the past hour.
Compared with his state before the crash, which one of the following combinations of left ventricular end-diastolic volume (EDV), stroke volume (SV) and systemic vascular resistance would you expect in this man now?
Keep going — a set of ten like this one, one at a time.
Practise moreMore from Physiology
See allA 46-year-old man attends the clinic nine months after cardiac transplantation. He feels well, has no chest pain and walks four kilometres most days. He takes n…
Foundations · middle twist
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…
Foundations · common
A 22-year-old woman is brought to the emergency department 30 minutes after an argument at home, breathing rapidly and deeply. She complains of tingling around…
Foundations · middle twist
A 43-year-old man is brought in 18 hours after a meal that included home-bottled vegetables. Over the past six hours his eyelids have drooped, his vision has do…
Foundations · middle twist
A 58-year-old man is freed after six hours trapped beneath a collapsed brick wall. He is alert, and both thighs are swollen and tender. He reports tingling in b…
Foundations · middle twist