Your grandmother, a cook at a nearby school, was recently ho…

Your grandmother, a cook at a nearby school, was recently hospitalized when she lost an extensive amount of blood in a work-related accident. She tells you that she heard the nurse say that she would keep feeling faint until her brain made more blood. You recognize that when her blood pressure dropped, the pressure in her carotid arteries decreased. This was detected by baroreceptors in the carotid arteries, which acted then to:

A 20-year-old college student has a pelvic fracture and a se…

A 20-year-old college student has a pelvic fracture and a severed leg from a motorcycle accident. She lost several units of blood at the accident scene. When she arrived in the ER her blood pressure was very low, pulse was high and her skin was pale. What caused altered tissue perfusion in this patient?

A 20-year-old college student was being treated for a kidney…

A 20-year-old college student was being treated for a kidney infection and developed a temperature of 104ºF, in spite of treatment with antibiotics. Her pulse was high, blood pressure was low and her skin was hot, dry, and flushed. What caused altered tissue perfusion in this patient?