Deck 16: Adrenergic Antagonists

Question 1

Phentolamine is an antidote used for treating hypertensive emergencies caused by catecholamine overdose because it blocks which type of receptors?

A)Alpha₁ receptors
B)Alpha₂ receptors
C)Both beta₁ and beta₂ receptors
D)Both alpha₁ and alpha₂ receptors

Answer 1

Both alpha₁ and alpha₂ receptors

Question 2

A client is prescribed alfuzosin (Uroxatral)for benign prostatic hyperplasia (BPH).The nurse should anticipate which intended effect of this drug?

A)Increased formation of residual urine in the bladder
B)Increased reabsorption of sodium in the kidney tubules
C)Excessive excretion of sodium in the urine
D)Increased frequency of urinary excretion

Answer 2

Increased frequency of urinary excretion

Question 3

An older client who is prescribed terazosin (Hytrin)for treatment of benign prostatic hyperplasia (BPH)asks the nurse the reason why this drug should initially be taken at bedtime.Which rationale will the nurse base the response to the client?

A)It can cause a sudden fall in blood pressure.
B)It can depress the vasomotor center in the brain.
C)It can decrease the blood supply to the kidneys.
D)It can reduce the formation of urine at bedtime.

Answer 3

It can cause a sudden fall in blood pressure.

Question 4

Which instruction should the nurse include in the discharge teaching plan of a client being treated with propranolol (Inderal)for angina?

A)"Salt and salt substitutes can be used with this medication."
B)"Take a double dose if you miss a dose."
C)"Do not stop taking this medication without talking to your health care provider."
D)"Use an OTC medication in case you develop nasal allergies."

Question 5

The nurse should order for propranolol (Inderal)in treatment of hypertension when the client has which associated disorders? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Angina pectoris
B)Dysrhythmias
C)Hyperlipidemia
D)Asthma
E)Liver failure

Question 6

An older adult client who is taking doxazosin (Cardura)for hypertension is given a prescription of sildenafil for erectile dysfunction.The nurse should caution the client about which effect?

A)Sildenafil causes rapid elimination of doxazosin through the kidneys.
B)Sildenafil will potentiate the hypotensive effects of doxazosin.
C)Sildenafil blocks the absorption of doxazosin from the gastrointestinal tract.
D)Sildenafil causes hypertension,counteracting the effect.

Question 7

In preparing a teaching plan for a client who is on acebutolol (Sectral),the nurse should include which instructions? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Take the radial pulse before each dose and report any irregular pulse.
B)Report cold,painful,or tender feet or hands to your health care provider.
C)If you miss a dose,take a double dose next time.
D)Stop the medication completely if dizziness or headache occurs.
E)This drug must not be stopped abruptly but must be taken regularly.

Question 8

A client diagnosed with hypertension is prescribed atenolol (Tenormin).The nurse knows that this medication is a selective beta₁ blocker and can be safely used for clients with which concurrent diagnosis?

A)Asthma
B)Diabetes
C)Heart failure
D)Hepatic disease

Question 9

A client diagnosed with hypertension is prescribed carvedilol (Coreg)and complains of dizziness and faintness immediately after taking this medication.The nurse knows that this effect is due to the action of which receptors?

A)Beta₂ receptors only
B)Beta₁ and beta₂ receptors
C)Beta₁ receptors only
D)Alpha₁,beta₁,and beta₂ receptors

Question 10

A client is prescribed sotalol (Betapace)for a cardiac dysrhythmia.The nurse knows that sotalol (Betapace)is used in this client because it performs which action?

A)Increases secretion of renin from the kidneys
B)Decreases sympathetic output from the vasomotor center in the brain
C)Slows the travel of impulse across the myocardium
D)Diminishes myocardial contractility

Question 11

A client prescribed propranolol (Inderal)for angina asks the nurse why this drug should not be abruptly discontinued.The nurse would be correct in telling the client that abrupt withdrawal could lead to which result?

A)Extreme weight loss
B)Increase in blood glucose levels
C)Rebound chest pain or heart attack
D)Insomnia

Question 12

For which symptoms should the nurse teach the client to monitor when taking doxazosin (Cardura)?

A)Dizziness and headache
B)Difficulty in breathing
C)Decreased urinary frequency
D)Constipation

Question 13

The nurse is evaluating a client's response to a newly prescribed adrenergic agonist.Which assessment findings does the nurse anticipate this client will exhibit? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Increased peristalsis
B)Dilated pupils
C)Increased salivation
D)Deep respirations
E)Decreased heart rate

Question 14

A client is seen in the clinic for migraine headaches.The nurse anticipates that which medication might be prescribed as a prophylaxis for migraines?

A)Propranolol (Inderal)
B)Acebutolol
C)Carvedilol (Coreg)
D)Metoprolol (Lopressor)

Question 15

The nurse is preparing a care plan for an elderly client diagnosed with hypertension,who is prescribed prazosin (Minipress)1 mg 2 times a day.Which instructions should the nurse include in the care plan for this client? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)This drug decreases urinary output and causes urinary retention.
B)The first dose should be given at bedtime.
C)Monitor for drug-related side effects such as dizziness,fatigue,and weakness.
D)Client must be recumbent for 3 to 4 hours if the first dose is given during the daytime.
E)This drug can cause severe constipation,so a high-fiber diet is advisable.

Question 16

A client is given tamsulosin (Flomax)for benign prostatic hyperplasia (BPH).The nurse knows that the action of this drug is due to selective blockade of which receptor?

A)Alpha₁
B)Alpha₂
C)Beta₂
D)Beta₁

Question 17

Prazosin (Minipress)is prescribed for hypertensive client.Which measure should be used by the nurse to prevent the first-dose phenomenon?

A)Give the dosage early in the morning before breakfast.
B)Give initial low doses at bedtime.
C)Give the dosage with meals.
D)Give initial high dosage and then lower gradually.

Question 18

A client is to be treated for an overdose of propranolol (Inderal).Which medications should the nurse anticipate being used? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Prazosin
B)Isoproterenol
C)Atropine
D)Metoprolol
E)Digoxin

Question 19

Which medication should the nurse anticipate to be prescribed for a client with asthma and hypertension?

A)Metoprolol (Lopressor)
B)Propranolol (Inderal)
C)Sotalol (Betapace)
D)Nadolol (Corgard)

Question 20

Which symptom is the client who is prescribed alpha₁-antagonist therapy likely to complain of within the first 24 hours?

A)Difficulty swallowing
B)Blurring of vision
C)Decreased urinary frequency
D)Attacks of dizziness and faintness

Question 21

A client with hypertension is prescribed a beta blocker.The effects that this medication will have on the client's blood pressure are due to which factors? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Reduced myocardial contractility
B)Reduced release of renin
C)Relaxed arteriole smooth muscle
D)Reduced sympathetic output from the brain
E)Reduced lipolysis

Question 22

A client asks the nurse,"What would happen if I stop taking the Inderal?" Which response by the nurse is the most appropriate? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)"You could start sweating and have palpitations."
B)"You could get a headache."
C)"You could develop nausea and vomiting."
D)"Nothing will occur."
E)"The medication will not work if prescribed again."

Question 23

The nurse is preparing discharge instructions for a client who is prescribed an adrenergic antagonist.What should be included in this teaching? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Weighing self daily,at the same time each day
B)How to measure blood pressure
C)How to measure pulse
D)Notifying the health care provider with a weight gain or loss of 2 lbs in one day
E)Stopping taking the medication if dizziness occurs

Question 24

The nurse learns that a client has been taking a beta-adrenergic antagonist but does not know why.For which disease processes should the nurse focus assessment with this client? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Angina pectoris
B)Dysrhythmias
C)Glaucoma
D)Hypertension
E)Chronic obstructive pulmonary disease

Question 25

A client reports feeling lightheaded and dizzy with palpitations after being instructed to increase the dose of a prescribed beta-adrenergic antagonist.How should the nurse respond to this client's symptoms? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)"This is first-dose phenomenon."
B)"If the dose is increased again,take the medication at bedtime."
C)"This will go away in time."
D)"Maybe you have another health problem that needs to be examined."
E)"You may have taken too much medication."

Question 26

A client is prescribed an alpha₁ antagonist for blood pressure control.When instructing the client,the nurse will include that this medication performs which action? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Blocks alpha₁ receptors on arterial smooth muscle
B)Dilates veins
C)Blocks alpha₂ receptors on arterial smooth muscle
D)Reduces the heart rate
E)Decrease the force of myocardial contraction

Question 27

Prior to administering a newly prescribed order for metoprolol (Toprol),the nurse reviews the client's medications and decides to order for which reason? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)The client is also prescribed a calcium channel blocker.
B)The client is already taking an antihypertensive medication.
C)The client is using cimetidine.
D)The client is taking oral contraceptives.
E)The client is taking aspirin.

Question 28

The nurse is concerned that a client who received a dose of phentolamine (Regitine)is experiencing adverse effects.Which assessment findings support this? Note: Credit will be given only if all correct choices and no incorrect choices are selected.Standard Text: Select all that apply.

A)Hypotension
B)Tachycardia
C)Nausea
D)Vomiting
E)Headache