Alpha/beta receptors

Question 1

A selective alpha agonist is given. What affect does this have on BP, HR, eyes, bladder, and prostate

Answer 1

Alpha 1 activated

BP: increased
HR: increased
eyes: mydriasis
bladder: relaxation
prostate: contraction

Question 2

If a non-selective alpha agonist is given, what happens to BP and GI?

Answer 2

Alpha 1 and 2 activated

BP: increase
GI: decreased tone and motility

Question 3

If a selective beta agonist is given, what happens to the heart and kidneys?

Answer 3

HR: increased
BP: increased

Question 4

If a nonselective beta agonist is given, what happens to GI, lungs, uterus, and liver?

Answer 4

Beta 1 and beta 2 will be activated

GI: decreased tone and motility
Lungs: bronchodilation
Uterus: relaxation of uterine smooth muscle
Liver: increased blood sugar

Question 5

A selective beta agonist is given. What effect would this medication have on the BP and HR?

Answer 5

Increased BP and HR

Question 6

A non-selective beta 2 antagonist is given. What would happen to lungs?

Answer 6

Bronchoconstriction

Question 7

A selective alpha agonist is given. What effect would this have on the GI?

Answer 7

Peristalsis would slow

Question 8

A selective alpha antagonist is given. What would happen to the GI?

Answer 8

Peristalsis would speed up.

Question 9

A patient is given a non-selective agonist. What would happen to their blood glucose levels?

Answer 9

Blood glucose would increase

Question 10

A patient is given a non-selective antagonist medication. What would happen to their blood glucose levels?

Answer 10

Hypoglycemia which is commonly masked by beta 1 reactions besides sweating.