Flashcards in test 4 Deck (48):
Epinephrine, as an adrenergic (sympathomimetic) drug, produces which therapeutic effect?
increased heart rate and contractility
The physician has ordered dopamine to treat the patient’s hypovolemic shock secondary to severe blood loss. For the medication to be effective, the physician must also order
When assessing for cardiovascular effects of an adrenergic (sympathomimetic) drug, the nurse understands that these drugs produce
a positive inotropic, positive chronotropic, and positive dromotropic effect.
A hypertensive crisis may occur if adrenergic (sympathomimetic) drugs are given along with
The nurse assesses the intravenous infusion site of a patient receiving dopamine and finds it is infiltrated. The nurse will prepare which medication to treat this infiltration?
A patient using Afrin nasal spray complains of worsening cold symptoms and tells the nurse, “I don’t understand why this is not working. I am using it almost every 3 hours!” The nurse’s response is based on knowledge that
the patient is suffering from rebound congestion related to excessive use of the Afrin nasal spray.
Your patient is receiving dobutamine as a continuous infusion. Titration of this medication is based upon which factors? (Select all that apply.)
beta 1 blockers affect
beta 2 blockers affect
ending for beta blockers
action of beta blockers
blocks the beta receptors in the heart causing:
↓ HR, ↓ force of contraction, ↓rate of A-V conduction
side effects of beta blockers
lethargy, GI disturbance, congestive heart failure, ↓BP, depression
Nonselective beta blockers may be used to treat hypertension and
supra ventricular dysrhythmias
An example of a cardioselective beta blocker includes
When teaching a patient about beta blockers such as atenolol (Tenormin) and metoprolol (Lopressor), it is important to inform the patient that
abrupt medication withdrawal may lead to a rebound hypertensive crisis.
Propranolol (Inderal) is an effective
nonselective beta-adrenergic antagonist
During assessment of a patient diagnosed with pheochromocytoma, the nurse auscultates a blood pressure of 210/110 mm Hg. The nurse would expect to administer which medication?
When assessing for cardiovascular effects of a beta blocker, the nurse understands that these drugs produce
a negative inotropic, negative chronotropic, and negative dromotropic effect
The priority nursing diagnosis for a patient taking metoprolol (Lopressor) would be
Risk for decreased cardiac tissue perfusion related to effects of medication.
Patient teaching for a patient being discharged on a beta blocker includes which statement?
“If you take your pulse and it is less than 60, hold your medicine and call your health care provider for instructions.”
The nurse is admitting a patient with a history of angina and hypertension who is currently experiencing moderate heart failure. The patient’s current medication regimen includes digoxin (Lanoxin), furosemide (Lasix), and quinapril (Accupril). Which medication would be most beneficial for the health care provider to add to this patient’s treatment plan?
Beta blockers are used to treat which disorders? (Select all that apply.)
increased force of contractions
increased heart rate
increased conduction through AV node
1. used for?
1. heart failure
2. increase cardiac contractility (↑ CO/SV)
1. used for?
2. effect? (3)
1. short and cardiac arrest
2. Low dose= dopaminergic (dilate blood vessels to brain, heart, and kidneys)
high does= beta 1 (improve cardiac contractility and CO)
highest dose= alpha 1 (vasoconstriction)
epinephrine (Adrenaline) used for?
allergic reactions/ anaphylaxis
norepinephrine (Levophed) used for
tx of hypotension and shock
drug interactions with adrenergics
anesthetics, MAOIs, antidepressants and antihistamines
tx benign prostate hyperplasia
alpha adrenergic blocker
regulatory fxn of cholinergic drugs (6)
↑ gastric secretions
emptying of bladder &bowel
focus eye for near vision
contracting bronchial smooth muscle
at recommended doses, what receptors do cholinergic drugs act on?
at HIGH doses, what receptors do cholinergic drugs act on?
increases tone and motility of bladder and GI tract
helpful post-op for urinary retention
indirect-acting anti cholinesterase drugs used for?
tx of Alzheimer's disease
increases ACh by inhibiting anti cholinesterase to improve muscle strength (i.e. myasthenia gravis and paralysis from NMBDs)
increases ACh to tx Alzheimers
not a cholinergic but used to tx Alzheimers
decrease muscle rigidity and tremor
naturally occurring muscarinic used for CV disorders
tx for urinary frequency/urgency
do not use in open angle glaucoma
overdose of cholinergic blocking drug
↑ temperature, confusion, flushed face, decreased secretions/thirsty
angle clousure glaucoma
displacement of the iris preventing exit of aqueous humor from the anterior chamber
decreases production of aqueous humor
as effective as beta blockers with fewer adverse effects; realized the ciliary muscle