Following acute haemorrhage, the following compensatory mechanisms occur:
a. increased chemoreceptor discharge
b. increased level of circulating angiotensin II
c. vasoconstriction of renal efferent arterioles
d. all above
a. increased chemoreceptor discharge
b. increased level of circulating angiotensin II
c. vasoconstriction of renal efferent arterioles
d. all above