adrenergic: chapter 19

Question 1

what do a1 receptors on blood vessels do

Answer 1

vasoconstriction

Question 2

what do b2 receptors on the heart do

Answer 2

increase contractility and hr

Question 3

what do b2 receptors on blood vessels do

Answer 3

vasodilation

Question 4

what do b1 receptors on the kidneys do

Answer 4

increase renin secretion

Question 5

what do b2 receptors on the liver do

Answer 5

glycogenolysis

Question 6

what do a1 and b2 receptors on gi muscle do

Answer 6

relaxation

Question 7

what do a1 receptors on the bladder sphincter do

Answer 7

constriction

Question 8

what do b2 receptors on the uterus do

Answer 8

relaxation

Question 9

what do b2 receptors son the bronchial muscles do

Answer 9

relaxation

Question 10

what response do adrenergic drugs produce

Answer 10

sympathetic

Question 11

what does binding to a1 receptors lead to (2)

Answer 11

vasoconstriction, relaxation

Question 12

what does stimulation of b1 receptors lead to (4)

Answer 12

positive intotropic, positive chronotropic, positive dromotropic, increase renn secretion

Question 13

respiratory indications for adrenergic drugs

Answer 13

bronchodilation, asthma, bronchitis, anaphylaxis

Question 14

indiciations for topical nasal decongestants

Answer 14

dilate arterioles and reduce nasal blood flow

Question 15

opthalmic indications for adrenergic drugs

Answer 15

vasoconstriction of arterioles, reduce intraocular pressure to treat open angle glaucoma, dilate pupils

Question 16

cardiovascular indications for adrenergic drugs

Answer 16

support cv system during heart failure or shock

Question 17

what are 2 serious side effects of adrenergic drugs

Answer 17

seizure, extreme elevation in blood pressure

Question 18

what drug can be used to control extreme elevations in blood pressure

Answer 18

rapid acting sympatholytic

Question 19

what receptors does dobutamine target

Answer 19

b1

Question 20

what effect does dobutamine have on the body

Answer 20

increase cardiac output by increasing contractility (positive inotrophy)

Question 21

what receptor does dopamine target

Answer 21

b1 and b1

Question 22

what effect does dopamine have when given at lower infusion rates

Answer 22

dilate blood vessels in the brain, heart, kidneys, and mesentary

Question 23

what effect does dopamine have when given at higher infusion rates

Answer 23

improve heat contractility and output, cause vasoconstriction

Question 24

what receptors does epinephrine act on

Answer 24

A and B

Question 25

how does epinephrine have an effect on b1 receptors

Answer 25

increase the force of contraction and hr

Question 26

how does epinephrine have an effect on b2 receptors

Answer 26

cause bronchodilation and decrease release of histamine

Question 27

how does epinephrine have an effect on a1 receptors

Answer 27

cause vasoconstriction which reduces upper airway obstruction, increase bp, and prevent shock

Question 28

what effect does norepinephrine have on a receptors

Answer 28

vasoconstriction

Question 29

besides a receptors, what other receptors does norepinephrine stimulate

Answer 29

b1

Question 30

what receptors does phenylephrine have an effect on

Answer 30

a

Question 31

indication for the use of phenylephrine

Answer 31

short term treatment to raise bp, control dysrhythmia, and cause vasoconstriction

Question 32

why may epinephrine not be used in the case of shock

Answer 32

it can cause vasoconstriction of renal vessels leading to possible kidney damage

Question 33

what is the drug of choice for treating shock. why

Answer 33

norepinephrine because it can cause vasoconstriction of peripheral blood vessels and increase bp without constricting renal vasculature

Question 34

what order should the patient take their medications if they are prescribed a bronchodilator and a corticosteroid

Answer 34

take the bronchodilator first, wait 5min, then take the corticosteroid

Question 35

what should be done after taking inhalent forms of adrenergic drugs. why

Answer 35

rinse mouth to prevent irritation and infection