Deck 19: Adrenergic Agonists

Question 1

The nurse is getting ready to use an EpiPen auto-injector for a client who was bitten by a wasp.The nurse knows that for the EpiPen to be fully effective, it should be stored:
1)In the refrigerator.
2)In a dark place.
3)On the counters.
4)At a warm temperature.

Answer 1

2

Question 2

A client diagnosed with Parkinson's disease is prescribed entacapone (Comtan).The client is to be given epinephrine for cardiopulmonary resuscitation.The nurse should be aware that entacapone (Comtan)causes an increased effect of epinephrine on the heart due to:
1)Stimulation of enzyme COMT in the synaptic cleft.
2)Inhibition of enzyme COMT in the synaptic cleft.
3)Excessive secretion of enzyme COMT from the synaptic vesicles.
4)Increased reuptake of the enzyme COMT from the synaptic cleft.

Answer 2

2

Question 3

A client who was stung by a bee is treated with an EpiPen auto-injection.The nurse monitors for which one of its major therapeutic effects?
1)Spasm of the bronchus
2)Constriction of the pupils
3)Increased urinary output
4)Increased blood pressure

Answer 3

4

Question 4

The nurse is teaching a client about the use of phenylephrine (Neo-Synephrine)nasal spray.The nurse should include which of the following statements as part of the teaching plan? Select all that apply.
1)"You can use this spray for treating other members in the family."
2)"You must use this spray for a period of ten days continually for maximal effects."
3)"Avoid caffeine-containing beverages while taking this drug."
4)"Do not use this drug if you have heart disease."
5)"Report symptoms of excessive use of this drug, like palpitations and nervousness."

Question 5

Adrenergic agonists like epinephrine are not given orally but parenterally or by inhalation because:
1)They produce toxic by-products in the blood.
2)They are metabolized by the enzyme COMT in the intestinal tract.
3)They are rapidly absorbed by the blood.
4)They are not easily digested in the gastrointestinal tract.

Question 6

A client is prescribed oxymetazoline (Ocu-clear)ophthalmic solution for redness of the eye and eye irritation.The nurse should include which of the following statements in the client teaching? Select all that apply.
1)Transient stinging can occur.
2)Headache or brow pain can occur.
3)Expect some dizziness.
4)Vomiting is a common occurrence with this drug.
5)Blurred vision is possible.

Question 7

The nurse is to start a client on a high-dose dopamine infusion.The nurse would expect to see an increase in blood pressure because of dopamine's effect on:
1)Beta-1-adrenergic receptors.
2)Alpha-1-adrenergic receptors.
3)Beta-2-adrenergic receptors.
4)Dopaminergic receptors.

Question 8

A client receives epinephrine for anaphylactic shock.The nurse should be aware of which one of the following mechanisms by which epinephrine acts?
1)Indirectly, by promoting release of norepinephrine
2)Directly, by stimulating adrenergic receptors
3)Inhibiting reuptake of norepinephrine from the synaptic cleft
4)Inhibiting destruction of norepinephrine by enzyme MAO

Question 9

A low-dose dopamine infusion is to be started for a client with hypovolemic shock.For which of the following desired therapeutic effects of this drug should the nurse be monitoring?
1)Increased urine output
2)Nausea
3)Chest pain
4)Tinnitus

Question 10

A client diagnosed with narcolepsy is prescribed ephedrine, and asks the nurse how this medication will improve the problem.The nurse's response will be based on which one of the following physiologic concepts?
1)Ephedrine can be easily destroyed by the enzymes in the synaptic cleft.
2)Ephedrine can easily cross the blood-brain barrier.
3)Ephedrine cannot be easily absorbed through the intestinal tract.
4)Ephedrine will prevent any attacks of epilepsy.

Question 11

The nurse is starting a high-dose dopamine infusion for a client diagnosed with shock.The nurse should monitor the client for which of the following side effects of this drug?
1)Angina
2)Bronchospasm
3)Urinary retention
4)Ventricular tachycardia

Question 12

A client is prescribed albuterol (Proventil)oral tablets for asthma.During client teaching, the nurse should include which one of the following?
1)"This drug is very effective in treating acute attacks."
2)"This drug must be taken 15 minutes before exercise."
3)"This drug can be taken every five minutes for maximal effect."
4)"The dosage for this drug should be doubled up if no effect is seen in a short time."

Question 13

A client is given ephedrine (Efedron)for bronchial asthma.The nurse should ask the client to report which one of the following effects of this drug?
1)Increased appetite
2)Palpitations
3)Drowsiness
4)Excessive vomiting

Question 14

A client is prescribed tetrahydrozoline (Tyzine)for redness of the eye.The nurse knows that this medication is indicated because it causes:
1)Relaxation of the radial muscles of the iris.
2)Constriction of the pupil.
3)Vasoconstriction of the arterioles in the eye.
4)Absorption of fluid in the conjunctival sac.

Question 15

Isoproterenol is an effective bronchodilator.It also produces cardiovascular adverse effects because of its effect on:
1)Alpha-1 receptors.
2)Alpha-2 receptors.
3)Beta-1 receptors.
4)Dopamine receptors.

Question 16

A client is prescribed salmeterol (Serevent)by inhalation for asthma.The client asks the nurse how the medication can help.The nurse's response should be based on the fact that salmeterol (Serevent)is a:
1)Selective beta-1 agonist.
2)Selective beta-2 agonist.
3)Selective alpha-1 agonist.
4)Non-selective adrenergic agonist.

Question 17

Phenylephrine is to be used for a client to reverse hypotension caused by spinal anesthesia.The nurse should inquire for symptoms of which of the following conditions in the client as a contraindication to this drug? (Select all that apply.)
1)Severe hypertension
2)Angina
3)Narrow-angle glaucoma
4)Asthma
5)Parkinson's disease

Question 18

A client taking an MAO inhibitor for hypertension asks the nurse for medication to relieve nasal congestion.The nurse should know that phenylephrine will be a poor choice for this client because it might cause:
1)Hypertension.
2)Dizziness.
3)Hypokalemia.
4)Tinnitus.

Question 19

A client diagnosed with asthma asks the nurse why an albuterol (Proventil)inhaler is better than isoproterenol (Isuprel).The nurse's response should be based on the physiologic concept that isoproterenol affects:
1)Alpha-1 receptors.
2)Beta-2 receptors.
3)Beta-1 and beta-2 receptors.
4)All of the receptors.

Question 20

One of the reasons epinephrine causes an intense fight-or-flight response throughout the body is because it stimulates:
1)All four types of adrenergic receptors.
2)Only the alpha receptors.
3)Only the beta-1 receptors.
4)Only the beta-2 receptors.

Question 21

A client is to be given isoproterenol for ventricular dysrhythmia.The nurse should question the order of this drug if the client is also on which one of the following drugs?
1)MAO inhibitors
2)Cardiac glycosides
3)Analgesics
4)Anti-inflammatory drugs