NUR 294 Pharmacology Exam II Questions with complete solutions
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Course
RN- Nursing
Institution
RN- Nursing
Beta1 Correct Answer-Increases: heart rate, force of contraction, velocity of conduction in AV node
Renin release by kidney
Beta 2 Correct Answer-Bronchial dilation
relaxation of uterine muscle
vasodilation
Alpha 1 Correct Answer-Vasoconstriciton
Contraction of bladder neck and prostate
...
NUR 294 Pharmacology Exam II Questions with complete solutions
Beta1 Correct Answer-Increases: heart rate, force of contraction, velocity of conduction in AV node
Renin release by kidney
Beta 2 Correct Answer-Bronchial dilation
relaxation of uterine muscle
vasodilation
Alpha 1 Correct Answer-Vasoconstriciton
Contraction of bladder neck and prostate
Alpha 2 Correct Answer-Located in presynaptic junction
autoreceptor- opposing effects of alpha-1 (shuts off NE release)
Also located in the brain stem
Dopamine Correct Answer-Dilates renal blood vessels
What receptors can epinephrine activate ? Correct Answer-All alpha and
beta receptors , but not dopamine
What receptors can NE activate? Correct Answer-Alpha 1 and 2, and Beta 1 (but not Beta2) What receptors can dopamine activate? Correct Answer-Alpha 1, Beta 1,
and dopamine
Dopamine is the only NT capable of activating what receptor? Correct Answer-Dopamine receptors
Many drugs produce their effects by interfering with specific life cycles of which NTs? Correct Answer-acetylcholine
NE
epinephrine
What are the two major divisions of the PNS? Correct Answer-Somatic Motor- voluntary control
Autonomic (ANS)- involuntary control
Three principal functions of ANS Correct Answer-Regulate the heart
Regulate secretory glands
Regulate Smooth Muscle
Main 4 of the 7 regulatory functions of the PNS Correct Answer-
Slowing the heart rate
emptying the bladder
emptying the bowel
contracting bronchial smooth muscle Three regulatory functions of the Sympathetic Nervous System Correct Answer-Regulation of the cardiovascular system
regulation of body temp
implementing the acute stress response (fight or flight)
What are sympathomimetic drugs used for Correct Answer-
Hypertension
Heart failure
Angina pectoris/coronary artery disease
Asthma
3 basic mechanisms by which ANS regulates physiologic processes Correct Answer-Patterns of innervation and control
feedback regulation
autonomic tone
Opposed dual innervation in the heart Correct Answer-sympathetic- stimulates
parasympathetic- vagal nerve, slows
Opposed dual innervation of the lung Correct Answer-Muscarinic receptors- vasoconstriction
Beta2- vasodilation
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