NSG 251 Exam Need to Study Questions and Verified
Answers
alpha 1 receptors are found in ----causing----- - ✔✔smooth muscle /vasoconstriction
While alpha 1 receptors cause vasoconstriction it can also cause ------ where? -
✔✔relaxation/GI smooth muscle
Beta 1 receptors are found - ✔✔The heart
When beta 1 receptors are stimulated, 3 things happen.... - ✔✔1). Increase in force of
contraction
2. increase in heart rate
3). increase in conduction
Beta 3 receptors decreases - ✔✔urinary frequency of bladder contractions which increases
filling phase of bladder
Beta 2 receptors - ✔✔bronchodilation in lungs
Some beta 2 receptor drugs - ✔✔-terol drugs like albuterol, ephedrine, terbutaline
Nasal Decongestants - ✔✔alpha 1 receptors
Nasal Decongestant drugs - ✔✔ephedrine, tetrahydrozoline, naphazoline
Ophthalmics stimulate ---- causing----- - ✔✔alpha receptors /arteriole vasoncontriction
,Adrenergics in eyes can treat - ✔✔open angle glaucoma
adrenergics in the eyes can reduce - ✔✔intraocular pressur e
Adrenergics in the eyes can dilate the eyes by stimulating ---- and ---- receptors -
✔✔alpha/beta 2
adverse for alpha receptor drugs - ✔✔headache, insomnia, euphoria, hypertension, reflexive
bradycardia
adverse for beta receptor drugs - ✔✔headache, dizziness, dysrhythmias and fluctuations in
BP
toxic effects of adrenergic drugs (2 most life threatening) and ---- - ✔✔CNS/Cardiovascular
systems /seizures
adrenergic drugs have very short ---- - ✔✔half lives
Since adrenergic drugs have short half lives, if overdosed what can be done to fix the situation?
- ✔✔Stopping the drug
Dobutamine - ✔✔beta 1 agonist
-inotropic agent, inc. contractility and CO, does NOT inc HR.
-used in acute management of heart failure
Dopamine - ✔✔beta 1 and alpha 1
dopamine at low doses - ✔✔dilate blood vessels in the brain and kidneys
, dopamine at higher doses - ✔✔heart contractility and CO
dopamine at highest doses - ✔✔alpha 1 / vasoconstriction
dopamine is contraindicated in patients who have - ✔✔pheochromocytoma
Epinephrine acts on both the ---- and ----- - ✔✔alpha and beta receptors
epinephrine is a ------ adrenergic agonist - ✔✔nonselective
epinephrine at low doses stimulates -----receptors and increases ---- of -----and ----- - ✔✔beta
1/force of contraction/heart rate
epinephrine is also a ------treating anaphylactic shock - ✔✔bronchodilator
epinephrine has broncodilatory effects on the ---- receptors - ✔✔beta 2
epinephrine at high doses acts as a -----elevating-----and acts on ----- receptors -
✔✔vasoconstrictor/blood pressure /alpha
Fenoldapam is a peripheral ---- agonist lowering---- - ✔✔dopamine 1 (D1) /blood pressure
Fenoldopam also increases ------ - ✔✔renal flow
Midodrine acts on ---- receptors - ✔✔alpha 1
Answers
alpha 1 receptors are found in ----causing----- - ✔✔smooth muscle /vasoconstriction
While alpha 1 receptors cause vasoconstriction it can also cause ------ where? -
✔✔relaxation/GI smooth muscle
Beta 1 receptors are found - ✔✔The heart
When beta 1 receptors are stimulated, 3 things happen.... - ✔✔1). Increase in force of
contraction
2. increase in heart rate
3). increase in conduction
Beta 3 receptors decreases - ✔✔urinary frequency of bladder contractions which increases
filling phase of bladder
Beta 2 receptors - ✔✔bronchodilation in lungs
Some beta 2 receptor drugs - ✔✔-terol drugs like albuterol, ephedrine, terbutaline
Nasal Decongestants - ✔✔alpha 1 receptors
Nasal Decongestant drugs - ✔✔ephedrine, tetrahydrozoline, naphazoline
Ophthalmics stimulate ---- causing----- - ✔✔alpha receptors /arteriole vasoncontriction
,Adrenergics in eyes can treat - ✔✔open angle glaucoma
adrenergics in the eyes can reduce - ✔✔intraocular pressur e
Adrenergics in the eyes can dilate the eyes by stimulating ---- and ---- receptors -
✔✔alpha/beta 2
adverse for alpha receptor drugs - ✔✔headache, insomnia, euphoria, hypertension, reflexive
bradycardia
adverse for beta receptor drugs - ✔✔headache, dizziness, dysrhythmias and fluctuations in
BP
toxic effects of adrenergic drugs (2 most life threatening) and ---- - ✔✔CNS/Cardiovascular
systems /seizures
adrenergic drugs have very short ---- - ✔✔half lives
Since adrenergic drugs have short half lives, if overdosed what can be done to fix the situation?
- ✔✔Stopping the drug
Dobutamine - ✔✔beta 1 agonist
-inotropic agent, inc. contractility and CO, does NOT inc HR.
-used in acute management of heart failure
Dopamine - ✔✔beta 1 and alpha 1
dopamine at low doses - ✔✔dilate blood vessels in the brain and kidneys
, dopamine at higher doses - ✔✔heart contractility and CO
dopamine at highest doses - ✔✔alpha 1 / vasoconstriction
dopamine is contraindicated in patients who have - ✔✔pheochromocytoma
Epinephrine acts on both the ---- and ----- - ✔✔alpha and beta receptors
epinephrine is a ------ adrenergic agonist - ✔✔nonselective
epinephrine at low doses stimulates -----receptors and increases ---- of -----and ----- - ✔✔beta
1/force of contraction/heart rate
epinephrine is also a ------treating anaphylactic shock - ✔✔bronchodilator
epinephrine has broncodilatory effects on the ---- receptors - ✔✔beta 2
epinephrine at high doses acts as a -----elevating-----and acts on ----- receptors -
✔✔vasoconstrictor/blood pressure /alpha
Fenoldapam is a peripheral ---- agonist lowering---- - ✔✔dopamine 1 (D1) /blood pressure
Fenoldopam also increases ------ - ✔✔renal flow
Midodrine acts on ---- receptors - ✔✔alpha 1
