Effects of beta blockers on the heart are all of the following except:
ADecreases duration of systole
BDecrease in heart rate
CMay decrease cardiac output initially.
DMay precipitate heart failure in acute settings.
Which of the following neurotransmitters is primarily released from the sympathetic nervous system to increase heart rate in response to a DECREASE in blood pressure?
ANorepinephrine
BDopamine
CAcetylcholine
DEpinephrine
Shock is clinically best assessed by:
ACVP
BBP
CHydration
DMental status
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