Cardiovascular Pharmacology & Delegation Flashcards
The transference of responsibility and authority of an activity to a competent individual
Delegation
The individual who accepts responsibility for the work
Delegate
The individual who assigns the task but still remains accountable for the outcome
Delegator
The active support of an issue that has importance
Advocacy
When is it acceptable for a nurse to delegate nursing activities to another nurse?
As long as the second nurse is free
Rights of delegation
Right: task, circumstance, person, direction, supervision
Right of delegation by which the delegator must ensure that the task can be delegated according to facility procedures and state regulations
Right task
Right of delegation by which the delegator must determine that the task addresses the patient’s needs and contributes to a desired outcome
Right circumstances
Right of delegation by which the delegator makes sure that the delegate has the right experience and skills to carry out the task
Right person
Right of delegation in which the delegator must provide a clear, concise description of the task along with its limits, objectives and expectations, and ensures the instructions are understood
Right direction
Right of delegation in which the delegator must monitor and evaluate the delegate’s performance and give feedback when necessary
Right supervision
Tasks that can be delegated to UAP
Vital signs, I&O, patient transfers and ambulation, bathing, feeding, weighing
Tasks that cannot be delegated to UAP
Assessment, interpreting data, making NSG diagnosis, care planning, evaluation, care of invasive lines, inserting NG tube, patient education, care of any unstable patient
Principles for delegating to UAP
Nurse must assess patient prior to delegating, patient must be medically stable, task should be considered routine (not skill), task should have predictable outcome, nurse is responsible for assessing UAP’s ability/knowledge
Delegation benefits to the nurse
Time management (more time spent on complex care)
Delegation benefits to delegate
Allows learning of new skills and increase confidence
Delegation benefits to manager
Unit functions at higher and more cost-efficient way
Legal case by which patient with cognitive deficits was left unattended in the bathtub and drowned. Both UAP and nurses were liable
Ferry v. State of Oklahoma (2007)
Legal case by which nurse documented completion of care without evaluation (falsifying records)
Williams vs. West Virginia Board of Examiners (2004)
Class of medications that increase sodium excretion and vasodilate arterial blood vessels
Diuretics
Diuretics decrease
Preload
Diuretics preferred in patients with adequate renal function
Thiazide diuretics (HCTZ)
Diuretics that can be used in patients with reduced renal function
Loop diuretics
Side effects of thiazide and loop diuretics
Hypokalemia, hyponatremia, postural hypotension
Examples of thiazide diuretics
Hydrochlorothiazide (HCTZ), Metolazone (Zaroxoyln), and chlorothiazide (Diuril)
Examples of loop diuretics
Furosemide (Lasix) and bumetanide (Bumex)
Diuretics contraindicated in patients with hyperkalemia and renal failure
Potassium sparing
Example of potassium sparing diuretic
Spironolactone
Nursing consideration for thiazide and loop diuretics
Not to be used in patients with sulfa allergy
Goal of all diuretics
Increase urinary output
Medication given to treat or prevent shock following a serious injury, blood loss, surgery, or burns by increasing blood plasma
Albumin
Class of medications that reduces preload and afterload through arterial and venous dilation and inhibition of angiotensin
ACE inhibitors
Side effects of ACE inhibitors
Angioedema, Cough, Hyperkalemia, Acute Kidney Injury
Nursing implications for ACE inhibitors
Hold if rising creatinine, hold 3 days prior to open heart surgery
T or F: it is OK to use ARBs if allergic to ACE inhibitors
True (ARBs are less likely to cause cough, hyperkalemia, or angioedema)
Side effect of ARBs
Hypotension
Examples of ARBs
Irbesartan (Avapro), Losartan (Cozaar), Valsartan (Diovan)
When calcium is blocked, HR is _________
Reduced
Calcium Channel blockers reduce
Afterload through vasodilation
Side effects of calcium channel blockers
Hypotension, bradycardia, heart block, lower extremity edema
Examples of calcium channel blockers
Amlodipine (Norvasc), Verapamil, Nifedipine (Procardia), Cardizem
Alpha blockers lower BP by
Vasodilation
Beta blockers lower BP by
Decreasing HR and CO
Alpha 1 and 2 receptors affect
Vasculature
Beta 1 receptors affect
Heart, vasculature
Beta 2 receptors affect
Bronchial smooth muscle
Antagonist effect of Alpha 1 and 2 receptors
Vasodilation
Antagonist effect of Beta 1 receptors
Vasodilation
Antagonist effect of Beta 2 receptors
Bronchoconstriction
Vasculature refers to
Arteries, arterioles, and veins
Beta ___ receptors are cardioselective, and Beta ___ receptors are non-cardioselective
1; 2
Side effects of Alpha 1 blockers
Orthostatic hypotension, nausea, headache
Examples of alpha 1 blockers
Doxazosin (Cardura) and Terazosin (Hytrin)
Class of medications that diminish the effects of epinephrine and other stress hormones, reducing HR
Beta Blockers
Side effects of beta blockers
Bradycardia, decreased AV conduction, reduced contractility
Examples of nonselective beta blockers
Propranolol, sotalol, nadolol, carvedilol
What beta blocker also has alpha blocking activity?
Carvedilol
Examples of cardioselective beta blockers
Metoprolol (Lopressor), Esmolol (Brevibloc), and Atenolol (Tenormin)
Beta blockers that can be used in patients with asthma
Low dose CARDIOSELECTIVE beta blockers
Class of medications that relax and dilate blood vessels
Vasodilators
Side effects of vasodilators
Flushing, orthostatic hypotension, dizziness/lightheadedness, reflex tachycardia
Examples of vasodilators
Hydralazine, sodium nitroprusside nipride, nitroglycerin
Vasodilator safe to use in kidney patients
Hydralazine
Nursing implications for sodium nitroprusside nipride
Monitor thiocyanate levels because this medication can cause cyanide toxicity after 3 days
S/S of cyanide toxicity
Blurred vision, confusion, seizures
Nursing implications for nitroglycerin
Patient should be seating when inhaling or taking SL nitrated because they can drastically drop BP
Class of medications that dilates veins, arteries, and arterioles
Nitrates
Examples of nitrates
Nitroglycerin, isosorbide, ranolazine
Class of medications that cause vasoconstriction and increase afterload
Vasopressors
Examples of vasopressors
Norepi (Levophed), Epi, phenylephrine, dopamine, vasopressin
Nursing implications for vasopressors
Always use a central line if available
Effectiveness of vasopressors is decreased with severe _________
Acidosis
Nursing implications for epinephrine
Monitor BG (epi raises BG)
Vasopressors that can be used in patients with tachycardia because it has no effect on HR
Phenylephrine (Neosynephrine)
Medication that has a positive inotropic effect and decreases HR and AV conduction allowing for more ventricular filling
digoxin (cardiac glycoside)
Side effects of digoxin
N/V, dizziness, bradycardia
Digoxin toxicity
Visual disturbance (halo effect), arrythmias (AV heart block, Vfib)
Nursing implications for digoxin
Monitor levels due to narrow therapeutic range, monitor HR and hold if less than 60 bpm
__________ increased the risk for digoxin toxicity
Hyperkalemia
Positive inotropic medications increase
Contractility
Examples of positive inotropic medications
Dopamine, dobutamine, primacor
Adverse effects of dobutamine
Increase HR, arrhythmias, hypotension
Abnormality in the rhythm of the heartbeat
Arrhythmia
Medications used to suppress abnormal rhythms of the heart
Antiarrhythmics
Types of antiarrhythmics
Tachyarrhythmics, bradyarrhythmics
Examples of tachyarrhythmics
Amiodarone, cardizem, lidocaine, adenosine
Medication that slows HR and can convert back to sinus rhythm
Amiodarone
Amiodarone caution
Pulmonary fibrosis liver failure
Reversal agent for cardizem
Calcium
Lidocaine toxicity
Mouth/tongue numbness, dizziness, confusion, visual/auditory disturbances, drowsiness, seizures
Lidocaine toxicity intervention
Lipid emulsion infusion
Nursing implications for adenosine
Have patient attached to or close to crash cart just to be safe
Examples of bradyarrhythmias
Atropine, isoproterenol
Medication that increases HR and improves AV conduction by blocking parasympathetic influences on the heart
Atropine
Side effects to be aware of with isoproterenol
Tachyarrhythmias, MI, and hypotension
Class of medications that prevent formation of new clots and extension of clots already present
Anticoagulants
Examples of anticoagulants
Heparin, enoxaparin (Lovenox), warfarin (Coumadin)
Reversal agent for Coumadin
Vitamin K
Nursing implications for Coumadin
Labs required at least once a month OR once a week if not within therapeutic range
Examples of Direct Oral Anticoagulants (DOAC)
Rivaroxaban (Xarelto), apixaban (Eliquis)
Xarelto education
Must be taken with at least 300 calories or can decrease absorption
Nursing implications for novel anticoagulants or DOACs
Need renal/liver function test for dosing, no routine lab monitoring
The only DOAC with reversal agent
Dabigatran (Pradaxa) —> direct thrombin inhibitor
heparin nursing considerations
Risk for HIT, hold 4-6 hrs before any invasive procedure
Lovenox nursing consideration
Hold for invasive procedures
Coumadin nursing considerations
3-5 days to take effect, hold for days prior to any invasive procedure, MANY food/drug interactions
Side effects of anticoagulants
Bleeding (educate patient to not abruptly discontinue these meds because of risk for bleeding and clots)
Examples of antiplatelets
Aspirin, clopidogrel (Plavix), Prasugrel (Effient), ticagrelor (Brilinta)
Prasugrel caution
Can increase risk of bleeding in adults over 75
Prasugrel contraindications
Stroke, CVA
Do not give ASA doses over ___ mg/day because it reduces effectiveness of drug and shortness of breath can be side effect
100
DOAC hold time before procedure
48 hours
Anti-platelets hold time before procedure
5-7 days
Class of medications that dissolve blood clots
Fibrinolytics
Examples of fibrinolytics
Alteplase/tPA (Activase) and streptokinase (Streptase)
Nursing implications for fibrinolytics
Bed rest, monitor neuro status closely
Signs of intracranial hemorrhage
Fall in GCS, neurologic deterioration (limb weakness, speech disturbances), new onset headache, N/V, rise in BP
Signs of anaphylaxis
Marked hypotension, acute onset of SOB and/or wheeze, facial swelling
Medications that reduce cholesterol, LDL, and triglycerides, and increase HDLs
Anti-lipid medications
Why are anti-lipid medications important in acute coronary syndrome (ACS)?
For their anti-inflammatory and plaque stabilizing properties
Side effects of Anti-lipid medications
Elevated LFTs, Rhabdomyolysis, Myalgias
Examples of Anti-lipid medications
Pravastatin, atorvastatin, simvastatin, rosuvastatin
Nursing implications for -statins
Use caution with liver failure
Medications that cause QT prolongation
Antibiotics (quinolones, macrolides), antipsychotics (haldol, risperdal), reglan, zofran