NUR 231 Week 1 Ch. 19 Review Questions and Correct Answers
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NUR 231
Adrenergic blockade at the alpha-adrenergic receptors leads to which effects? (select all that apply)
a. Vasodilation b. Decreased BP c. increased BP d. Constriction of the pupil e. Tachycardia A, B, D
The nurse discovers that the IV infusion of a patient who ahs been receiving an IV vasopressor ...
adrenergic blockade at the alpha adrenergic recept
the nurse discovers that the iv infusion of a pati
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NUR 231 Week 1 Ch. 19 Review
Questions and Correct Answers
Adrenergic blockade at the alpha-adrenergic receptors leads to which effects? (select
all that apply)
a. Vasodilation
b. Decreased BP
c. increased BP
d. Constriction of the pupil
e. Tachycardia ✅A, B, D
The nurse discovers that the IV infusion of a patient who ahs been receiving an IV
vasopressor has infiltrated. The nurse will expect which drug to b e used to reverse the
effects of the vasopressor in the infiltrated area?
a. Phentolamine
b. Prazosin
c. Epinephrine
d. Metoprolol ✅A
A patient has a new prescription for a beta blocker as part of treatment for HTN. The
nurse is reviewing the patient's current medications and notes that there may be a
concern regarding interactions with which medication?
a. Thyroid hormone supplement
b. Antibiotic for a sinus infection
c. Oral hypoglycemic for type 2 diabetes mellitus
d. Oral contraceptive ✅C
A patient has been given an alpha blocker as treatment for BPH. Which instruction is
important to include when the nurse is teaching him about the effects of this
medication?
a. Avoid foods and drinks that contain caffeine
b. Change to sitting or standing positions slowly to avoid a sudden drop in BP
c. Watch for weight loss of 2 lb within 1 week
d. take extra supplements of calcium ✅B
A patient who ahs been taking a beta blocker for 6 months tells the nurse during a
follow-up visit that she wants to stop taking this medication. She is wondering if there is
any problem with stopping the medication today. What is the nurse's best response?
a. "No, there are no ill effects if this medication is stopped."
b. "There should be only minimal effects if you stop this medication."
c. "You may experience orthostatic hypotension if you stop this medication abruptly."
d. "If you stop this medication suddenly., there is a possibility you may experience chest
pain or rebound hypertension." ✅D
, A patient has been taking tamsulosin for about 1 year. During today's office visit, he
asks the physician about taking a drug for erectile dysfunction. How does the nurse
expect the physician to respond?
a. "These drugs are safe to take together."
b. "You can take them together, but the dosage of the Flomax will need to be reduced. "
c. "Taking these two drugs together may lead to dangerously low BP."
d. "You will be able to try taking these two drugs together, but watch for side effects.
✅C
Which instruction should take priority in teaching patients how to manage the adverse
effects of alpha blockers?
a. Avoid the intake of grapefruit or grapefruit juice
b. Drink plenty of fluids throughout the day.
c. Eat plenty of green leafy vegetables
d. Change positions slowly ✅D
Which statement correctly describes the method of action of the drug in treating BPH?
a. It reduces smooth muscle contraction of the bladder neck and the urethra, decreasing
resistance to urine outflow.
b. It reverses prostatic hypertrophy, reducing the size of the prostate gland.
c. It inhibits production of prostate-specific antigen, decreasing gland size.
d. It enhances the diameter of the urinary meatus, improving urine flow. ✅B
Which of the following drug orders should alert the nurse to the possibility of drug error?
a. tamsulosin for a 65-year-old woman
b. Inderal for a 35-year-old patient with asthma
c. Carvedilol for a 50-year-old with hypertension
d. Metoprolol for a 55-year-old woman with hypertension ✅A
Mrs. W., a patient on a cardiac step-down unit, is receiving a dopamine IV infusion.
When the nurse first comes on the late-night shift, Mrs. W. seems just fine. However,
the next time the nurse checks on her, the IC line ahs dislodged and the infusion has
infiltrated. What could happen as a result? is this serious? What treatment will the nurse
expect to see ordered? Describe the procedure and provide the rationale.
✅Extravasation can cause vasoconstriction and ultimately tissue death (necrosis). If
the vasoconstriction is not reversed quickly, the whole limb can be lost. Phentolamine,
an alpha blocker, can reverse this potent vasoconstriction and restore blood flow to the
ischemic, vasoconstricted area. When phentolamine is injected SQ in a circular fashion
around the site, it causes alpha adrenergic receptor blockade and vasodilation. This in
turn increases blood flow to the ischemic tissue and thus prevents permanent damage..
Mr. C. has had a MI. He is told that he wil be prescribed a "cardioprotective drug." He
asks the nurse to explain. How can some betablockers be said to "protect" the heart?
✅Some beta blockers are considered cardioprotective because they inhibit stimulation
by the circulating catecholamines that were released during muscle damage, such as
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