27: Volume changes and disease states

Question 1

Epinephrine

Answer 1

Release from adrenal medulla via ACTH and splanchnic sympathetic drive

Question 2

Angiotensin

Answer 2

Decreased renal arterial pressure
Increased renal symp drive
renin release

Question 3

Vasopressin

Answer 3

Decreased baroreceptor input

Ang 2 trigger stimulation

Question 4

Moderate blood loss

Answer 4

Chemoreflex: increase sympatho excitation

Increase respirator aided venous return

Question 5

Short term response of moderate hemorrhage

Answer 5

Inc. respiratory effort = decreased resp rate
Increased tidal volume= central venous pressure drops= increased venous return during inspiration = increased cardiac output