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103 Cards in this Set

  • Front
  • Back
____ is a condition in which the heart can no longer pump enough blood to the rest of the body.
Heart Failure
2 diagnostic tests used for heart failure are
EKG and Echocardiogram.
An EKG is used with heart failure because the patient is at risk for ______ and it looks at _____
dysrhythmias
electrical activity
The echocardiogram looks at the
heart chambers and the valves.
The 3 main causes of heart failure are:
CHD
MI
HTN
Causes for heart failure other than CHD, MI and HTN are:
valvular heart disease
congenital heart disease
alcohol and drugs
The heart has the ability to adjust _____ based on the body's needs (exercise, sleep, illness).
cardiac output
Cardiac output=
stroke volume x heart rate
Heart failure occurs when there is one or more alterations in preload, afterload, contractility and heart rate leading to _____.
decreased cardiac output.
When the heart begins to fail, adaptive mechanisms are activated to maintain its pumping function. These 3 main adaptive mechanisms are:
1-neuroendocrine responses (SNS, RAAS)
2-Frank Sterling Mechanism
3-Ventricular remodeling
Ventricular remodeling results in cardiac muscle mass ____ or _____ or ______.
dilation
hypertrophy
both
As heart failure progresses compensatory mechanisms become ____ to muscle function.
detrimental
2 neuroendocrine responses that are part of the compensatory mechanisms which take over during heart failure are:
sympathetic nervous system and renin angiotensin aldosterone system
When there is decreased CO and BP the aortic baroreceptors will sense it and activate the _____. This causes increased HR and contractility as well as increased ____. The result is increased _____
SNS
vasoconstriction
CO
When the body detects decreased renal perfusion, the ____ is activated.
Renin angiotensin aldosterone system
Angiotensin I is converted to Angiotensin II in the ____.
lungs
Angiotensin II stimulates the secretion of _____ which increases ____ and _____ retention.
aldosterone
water and sodium
Angiotensin II stimulates secretion of _____ and this increases _____. Angiotensin II also causes constriction of vascular smooth muscle which increases ______.
Aldosterone
increases preload

afterload
The _____ initially causes an increase in end-diastolic volume and myocardial stretch- therefore a more powerful ____ and increased ______.
Frank Starling Mechanism
contraction
stroke volume
Eventually, the Frank-Starling Mechanism will result in ______.
ineffective contraction
_____ happens over time with the hearts use of compensatory mechanisms.
Ventricular remodeling
____ is ventricular remodeling in which the ventricular walls thin.
Dilation
____ is ventricular remodeling in which there is an increase in muscle cell size.
Hypertrophy
The most common type of heart failure is ____.
left sided.
____ failure means the heart is unable to contract.
Systolic
_____ failure means the heart is unable to relax.
Diastolic
The primary cause of right sided heart failure is ____.
left sided heart failure
Left-sided failure happens when the ____ is not effective. Blood backs up into the left atria then pulmonary veins and lungs causing _____.
left ventricle
pulmonary congestion
Symptoms of pulmonary congestion include:
SOB, cough, wheezing, crackles
Right sided failure occurs when the blood continues to back up into pulmonary artery, right ventricle and atria, SVC/IVC and then the rest of the body causing...
visceral and peripheral congestion
Manifestations of Left sided heart failure are
-paroxysmal nocturnal dyspnea
-cough, crackles, wheezes
-restlessness
-orthopnea, tachycardia
-exertional dyspnea
Manifestations of right-sided heart failure are
-ascites
-enlarged liver and spleen
-distended jugular vein
-anorexia
-c/o GI distress
-swelling in hands and fingers
-dependent edema
If a patient has severe heart failure, the ____ heart sound may be present.
S3
S3 heart sounds is also called the ______.
ventricular gallop
S3 closes after S2. It is during ____ and when there is closure of the _____.
diastole
AV valves
S3 heart sound indicates...
increased volume of blood within the ventricle.
The S3 heart sound appears to be related to a sudden limitation of the movement of blood during _____.
ventricular filling
The S3 heart sound is best heard with the ____ of the stethoscope because it is used for lower frequency sounds.
bell side
The New York Heart Association scale classifies heart failure based on ____ in relation to _____.
patient's symptoms
physical activity
The American Heart Association and the American College of Cardiology Foundation staging system for heart failure focuses on ___ and ____.
prevention and progression
The Heart Failure classifications for the AHA and ACCF are
Stages A-D
Classification of HF with the NYHA is
Stage I-IV
A person with Stage ___ HF is symptomatic at rest.
IV
A pt with Stage D HF is
on the heart transplant list.
A person with Stage A HF is
at high risk for HF
A person with Stage B HF is _____.
asymptomatic
A person with Stage C HF is _____.
symptomatic
____ is the lab test done to see if SOB is r/t HF.
BNP
BNP or brain natriuretic peptide is a protein stored primarily in the _____.
ventricular myocardium
BNP is released when ____ rises.
ventricular diastolic pressure
An increased ventricular volume causes an increased ____.
BNP
A BNP > ____ suggests HF.
100
In addition to a BNP you should look at ___ and ____ for HF.
electrolyte panel and CBC.
Burdens of Heart Failure include:
-Congestive symptoms
-Activity Limitation
-Dysrhythmias
-Hospitalizations
-Reduced survival
Medications that are prescribed for heart failure include:
ACE inhibitors
Angiotensin II Receptor Blockers
Beta Blockers
Diuretics
Nitrates
Cardiac Glycosides
"-pril" medications are _____.
ACE Inhibitors
_____ are the med of choice for heart failure.
ACE inhibitors
ACE inhibitors work by
reducing angiotensin II synthesis and therefore reduce aldosterone secretion and cause vasodilation.
Reduced aldosterone secretion causes ____ preload.
decreased
Vasodilation causes ____ afterload.
decreased
ACE inhibitors decrease mortality and slow
ventricular remodeling.
Adverse effects of ACE Inhibitors are
hyperkalemia
hypotension
renal insufficiency
acute angioedema
dry cough
A life threatening adverse effect of ACE inhibitors is ____.
acute angioedema
Acute angioedema is the swelling of
face, tongue and cheeks.
Nursing responsibilities for pt on ACE inhibitors include:
-monitor K for hyperkalemia
-check BP
-teach pt about orthostatic hypotension
-educate pt abt high K foods to avoid
-teach pt to report acute angioedema and dry cough
"sartan" medications are _____.
Angiotensin II Receptor Blockers (ARBs)
ARBs work in the ____ not the lungs and block the action of _____ at its receptor sites directly.
periphery
angiotensin II
Nursing care for a pt on ARBs includes:
-check BP
-monitor K (hyperkalemia)
-teach pt abt orthostatic hypotension
-educate abt acute angioedema
Dry cough is not an issue with ARBs because they do not
work in the lungs.
_____ don't allow conversion of Angiotensin I to Angiotensin II whereas ____ don't allow Angiotensin II to attach to receptor sites.
Angiotensin Converting Enzyme (ACE) Inhibitors

Angiotensin II Receptor Blockers (ARBs)
-"olol" meds are _____.
beta blockers
Beta blockers work by blocking beta receptors on the heart muscle and therefore they
decrease heart rate and contractility
Adverse effects of beta blockers include:
bradycardia
hypotension
dizziness
fatigue
A serious side effect of taking beta blockers is
rebound tachycardia.
Rebound tachycardia may be seen within ____ if beta blockers are stopped abruptly.
48-72 hours
Nursing care for a pt taking beta blockers includes:
-assess HR and BP prior
-assess for a report contraindications to therapy (HF, bradycardia, AV block, asthma, COPD)
-teach pt to take radial pulse before taking
-med may cause fatigue
____ diuretics inhibit the exchange of chloride and sodium in the distal loop of henle.
Thiazide
______ diuretics inhibit reabsorption of Na in the distal and collecting tubules.
K-sparing/Aldosterone Antagonists
____ diuretics inhibit exchange of chloride, sodium and potassium in the ascending loop of henle.
Loop
2 diuretics that are most commonly prescribed for the HF patient due to Fluid Volume excess are:
K-sparing and Loop diuretics
Nurses should monitor K for patients who are on ____ diuretics.
loop
"-actone/-one" meds are ____.
K-sparing diuretics (Aldosterone antagonists)
K-sparing diuretics (Aldosterone antagonists) work by
blocking aldosterone receptors in the distal and collecting tubules in the kidney. This increases the excretion of sodium and water.
If a patient is on a K-sparing diuretic they should be told to
maintain regular diet; don't increase intake of bananas, cantaloupe, etc...
Patients with heart failure have trouble with ventricular contraction. ____ improves the ventricular contraction making it more forceful.
Digoxin
Cardiac Glycosides, like Digoxin, slow conduction thru the ____ and improve myocardial contraction by interfering with the _____.
AV node
Na/K/ATPase pump
Digoxin binds to the N/K/ATPase pump causing more sodium to stay inside the cell and slowing down the Na Ca exchange. Since Ca is inside the cell longer there is a _____.
more forceful contraction
Digoxin does not cause hypokalemia, however, it the pt is already hypokalemic and digoxin is administered, they are at increased risk for ____.
digoxin toxicity
S/Sx of digoxin toxicity are
anorexia, nausea, vomiting, and vision changes.
Nursing care for a pt taking digoxin includes:
-check apical pulse 1 full minute
-monitor for hypokalemia
-check therapeutic levels
-monitor for signs of digoxin toxicity
-teach pt check radial pulse 1 minute at home
-withhold digoxin if pulse<60
The therapeutic range for digoxin is _____ng/mL.
0.8-2.0
1 liter fluid= ___kg= ____lb
1 liter fluid= 1 kg = 2.2 lb
Some nursing diagnoses for HF are
-Decreased CO
-Excess Fld Volume
-Activity Intolerance
-Knowledge deficient
-Ineffective Therapeutic Regimen Management
Nursing interventions for a patient with HF are:
-teach about Na restriction (2g/day)
-daily weights
-fluid restriction (2L/day)
-avoid smoking
-limit alcohol
-stress management
-take prescribed meds as ordered
-give written med schedule
HF discharge instructions include providing well written instructions and or educational material regarding:
-activity level
-diet
-medications
-f/u appointment
-weight monitoring
_____ is excessive edema even when pt is on extensive medication regimen.
Acute Pulmonary Edema
During Acute Pulmonary Edema the lungs are....
filling rapidly with fluid.
Acute Pulmonary Edema is characterized by
-dyspnea of sudden onset
-crackles
-gasping respirations
-rapid pulse
-decreased urine output
-skin that is cool, moist, ashen gray or cyanotic
Manifestations of Acute Pulmonary Edema include:
-tachypnea
-labored breathing
-productive cough
-pink, frothy sputum
-crackles, wheezes
-congestion
Treatment options for a patient with Acute Pulmonary Edema are:
-reduce excess fluid with loop diuretic
-O2 by mask
-MS by IV
-diuretics
MS by IV is used for Tx of Acute Pulmonary Edema because is causes ____ and reduces ____ to heart which alleviates effects of the SNS.
vasodilation
preload
Pulmonary Edema is a
MAD DOG
Morphine
Assess R, O2, lung sounds
Dobutamine

Diuretics (Lasix)
Oxygen
Gases (ABGs)
Positioning for a pt with Acute Pulmonary Edema includes
HOB raised and allow feet/legs to dangle