Heart Failure Flashcards
What is Ejection Fraction?
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(Stroke Volume) / (End Diastolic Volume)
The percentage of diastolic volume ejected from the heart during diastole
What is normal EF at the end of diastole & at the end of systole?
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End of Diastole = 120
End of Systole = 50 (aim for 70)
What is the ejection fraction in Heart Failure with Reduced Ejection Fraction (HFrEF) / Systolic?
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< 50%
What is normal ejection fraction in Heart Failure with Preserved Ejection Fraction (HFpEF) / diastolic?
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50 - 70%
What are precipitating causes of Heart Failure?
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Faulty heart valves
Arrhythmias (a-fib & tachycardia)
I – myocardial Infarction / CAD
Lineage (genetic)
Uncontrolled HTN
Recreational drugs
Evaders (infections)
Signs & Symptoms of Left sided Heart Failure
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Dyspnea
Rales
Orthopnea
Weakness
Nocturnal paroxysmal dyspnea (gasp for air when sleeping; it wakes you)
Increased heart rate – increased volume (heart works harder & faster to try & meet the demand)
Nagging cough
Gaining weight
DROWNING
Signs & Symptoms of Right sided Heart Failure
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Swelling of legs
Weight gain
Edema
Large neck veins
Lethargic
Irregular heart beat
Nocturia
Girth (ascities)
SWELLING
Explain cardiogenic shock
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Failure to pump blood adequately
- Most common cause of MI
- Ineffective pumping can be caused by mechanical defects, arrhythmias, ventricular aneurysm or valve dysfunction
S&S: S3, JVD, decreased MAP, SOB, weak pulse, pale skin, cool hands & feet, decreased urine output
What are signs & symptoms of cardiogenic shock?
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- S3
- JVD
- Decreased MAP
- Shortness of breath
- Weak pulse
- Pale skin
- Cool feet & hands
- Decreased urine output
What can be used to diagnose heart failure?
- BNP: indicates how the heart is functioning (normal < 100)
- Echocardiography (checks EF % right away) (Gold Standard)
- 12 Lead EKG
- Chest X-ray
- Cardiac catheterization
- Stress Test
Nursing Interventions for Heart Failure
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- Assess worsening symptoms
- Labs: Potassium, BUN, Troponin, Dig level, BNP, Creatinine
- Fluid Status (monitor I&Os + fluid restriction)
- Cardiac status
- Diet (low sodium)
- Edema
- Response to medications
- Safety
How to remember drug classes for heart failure
What medications can be used for heart failure?
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Always Administer Drugs Before A Ventricle Dies
- Ace inhibitors
- ARBs (Angiotensin II receptor blockers)
- Diuretics
- Beta blockers
- Anticoagulatns
- Vasodilators
- Digoxin
What are the significant six of patient education?
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- Smoking cessation
- Weight monitoring
- Symptoms to report
- Diet
- Activity
- Medications
What is Hypertrophic Obstructive Cardiomyopathy (HCM)?
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Enlarged heart muscle
- genetically enherited
Enlarged muscle surrounding the heart
What is Dilated Cardiomyopathy?
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Entire heart is enlarged
- idiopathic
What is an S3 Heart Sound / When is it produced?
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Produced by passive filling stage of diastole
- Normally inaudible
- Represents overloaded ventricle (when heard)
What is endocarditis?
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Bacteria in the bloodstream that enters the heart
- Bacterial: vegetative areas cover the valve (common w/ artifical valve)
- Infective: vegetative lesions around the heart
Abx for treatment
What is mitral regurgitation? What are signs & symptoms?
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Improper closing of valve causing blood to backflow
S&S:
* Fatigue
* Dyspnea
* Palpitations
* Angina
* S3
What is aortic stenosis?
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Valve becomes very stiff
- Causes: congenital rheumatic heart disease or classification
What is billowing?
Inflammation around the valve making it
What kind of symptoms are associated with right sided heart failure?
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Peripheral symptoms
- S3
- JVD
- Crackles
- Cheyne-Stokes Breathing
- Pulmonary & peripheral edema
- Frothy sputum
- Dyspnea
- Tachycardia
- Cyanosis
- RUQ Pain
- Hepatomegaly
Clinical manifestations of right sided heart failure include whcih of the following?
a.) Elevated central venous pressure (CVP) & sacral edema
b.) Pulmonary congestion & jugular vein distention (JVD)
c.) Hypertension & chest pain
d.) Liver tenderness & pulmonary edema
a.) Elevated central venous pressure (CVP) & sacral edema
The patient is scheduled for implantable cardiovert defibrillator (ICD) for treatment of a dysrhythmia. The nurse explains that the action of this procedure is
a.) Trigger electrical impulses in the hart
b.) Take over SA node function
c.) Block AV node transmission impulses
d.) Increase ventricular conduction
a.) Trigger electrical impulses in the heart
A measurement of what percent may be evidence of heart failure or cardiomyopathy?
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under 40%
What is another name for Heart Failure with preserved Ejection Fraction (HFpEF)?
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Diastolic Heart Failure
What is another name for Heart Failure with reduced Ejection Fraction (HFrEF)?
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Systolic Heart Failure
What are the KEY symptoms of Systolic Heart Failure / Heart Failure with reduced Ejection Fraction (HFrEF)?
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- Dyspnea
- Fatigue
- Decreased urine output
- Cheyne stokes respirations
- S3 heart sounds (due to fluid overload)
- JVD (due to fluid overload)