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46 Cards in this Set
- Front
- Back
What is a major sign of Ventricular dysfunction-
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exertion dyspnea
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HF can develop after these conditions
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a. long-standing hypertension, coronary artery disease (CAD), and myocardial infarction
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What are the symptoms of the pump of the heart not being effective
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edema, orthopnea, exertional dyspnea
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orthopnea
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shortness of breath while lying flas
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HF symptoms when not perfusing
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i. restlessness, confusion, and decreased attention span LOC
ii. Cyanosis(saturation) and ↓CR(perfusion) from a lack of oxygen iii. Fatigue or weakness iv. Rapid or irregular heart beat |
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HF pulmonary congestion causes what symptoms
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1. cough
2. wt gain 3. DJV 4. increased urination 5. anorexia, indegestion |
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what position is recommended for pt w/ HF
DON'T PUT BED BELOW why |
90 degrees
NOT BELOW 30 DEGREES fluid would rush back into lungs |
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talk about diabetes and HF
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all diabetics are at risk of HF regardless if they have HTN or MI
* constant inflammatory response causes hypertrophy |
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risk factors for HF
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>65
HTN smoking diabetes obesity high serum cholesterol |
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1. normal ejection fraction
2. HF ejection fraction 3. EF % that is life threatening arrhythmia |
1. normal: 60-80%
2. HF: <40% 3. life threatening arrhythmia: <35% |
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G. Systolic HF causes:
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a. Impaired contractile function (e.g., MI)
b. Increased afterload (e.g., hypertension) c. Cardiomyopathy (increased preload, contraction) d. Mechanical abnormalities (e.g., valve disease) |
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what is diastolic HF
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inability of the heart to relax and refill
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what is the ejection fraction in diastolic HF
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normal
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what's going on w/ lungs and heart in diastolic HF
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pulmonary congestion
pulmonary HTN ventricular hypertrophy |
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b. Diastolic failure is characterized by
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high filling pressures due to stiff or noncompliant ventricles and results in venous engorgement in both pulmonary and systemic vascular systems.
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a. NYHA: I-IV- classified according
B. ACC/AHA Stage- classified according |
a. NYHA: I-IV- classified according to pt funtioning
b. ACC/AHA Stage- classified according to stage of disease |
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which stage has conditions or behaviors associated w/ HF (atherosclerosis, CAD, diabetes, family hx cardiomyopathy, hx alcohol, rheumatic fever, cardiotoxic meds
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Stage A: ACC/AHA
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Which stage has structural chg but no s/s
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Stage B: ACC/AHA
class 1 of NYHA |
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Which stage has structural chg and sysmptoms
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stage C AHA/ACC
class II or III NYHA |
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what is a huge clinical sign of HF
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s3
gallop |
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when the heart is struggling, what are the compensatory mechanisms
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SNS stimulation
Activation of RAAS system myocardial hypertrophy activation of peptides and hormones |
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What effects does an increase of SNS have on cardio
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increases HR
increases conductivity peripheral constriction |
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Pulsus alternans- what is this? When is it seen
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alternates in strength- bound and then goes regular
SNS stimulation in HF |
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What are you going to see w/ pt w/ HF and SNS stimulation
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2. Tachycardia-how do you know it’s tachy?
3. Pulsus alternans- alternates in strength- bound and then goes regular how do you know? 4. PAC premature atrial contractions or AF atrial fibrillation 5. S3 gallop first sign of HF |
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activation of RAAS causes
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Na/H2o retention
cardiac remodeling- hypertrophy, fibrosis |
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monitoring and assessment of HF includes:
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1. lung ausculations wheeze, crackles that don't go away w/coughing- inspiration and expiration, r/t engourged blood vessels
2. neck veins, abd girth, hepatomegalay, 3. I&O, daily wt |
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labs to check w/ HF
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1. BNP/serum creatinine, creatine clearance
2. urine analysis for proteinuria microalbuminuia early indicator of decreased compliance of the heart 3. electrolytes |
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When are these activated? TNF, IL-1 and IL-6, BNP, ADH, Endothelin
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Compensatory mechanisms w/ heart failure
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1. What is endothelin
2. what stimulates its release 3. what does it cause in the body |
ii. Endothelin a potent vasoconstrictor is stimulated by ADH, catecholamines, and angiotensin II, causing:
1. Arterial vasoconstriction 2. Increase in cardiac contractility 3. Hypertrophy |
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What are antagonist to Endothelin and Aldosterone
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ANP and BNP
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What is Paroxysmal nocturnal dyspnea:
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after falling asleep edema rushes to lungs pt wakes with breathlessness.
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what s/s will a patient w/ HF display
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a. Dyspnea:
b. Excertional dyspnea: c. Orthopnea: d. Paroxysmal nocturnal dyspnea: e. Ventricular dysrhythmias- the collateral circulation does not keep with the growth of cardiac tissue. |
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what type of V/Q mismatch occurs with heart failure
Why is this more dangerous than respiratory V/Q mismatch |
dead space, problem w/perfusion
heart cannot give any more output |
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M. Clinical manifestations of left sided heart failure:
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a. Orthopnea-POSITIONAL DIFF BREATHING
b. Dyspnea, tachypnea c. Paroxsymal nocturnal dyspnea- d. Cyanosis e. Cool extremities/weak pulses- f. Cough with frothy, blood-tinged sputum- g. Breath sounds: Crackles, wheezes h. Tachycardia i. Hypotension or hypertension |
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clinical manifestations of Rt sided heart failure
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i. Jugular venous distention
ii. Hepatomegaly, splenomegaly iii. Vascular congestion of GI tract iv. Peripheral edema |
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b. COR PULMONALE:
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right sided heart failure
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Pitting edema: how assess
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apply pressure 3 sec, over 2 mm= pitting
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w/ HF, what does sudden wt gain indicate
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treatment is not working
condition exacerbated |
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What is unacceptable wt gain
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> 3 lbs over 2 days
3-5 lbs over wk |
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What ongoing assessments are important w/ HF
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i. History and physical examination
ii. Chest x-ray useful for spotting Lt ventricular failure iii. ECG does not indicate extent or presence of HF- ONLY TELLS ABOUT CONDUCTION iv. Lab studies (e.g., cardiac enzymes, (TRIPONIN- released by muscle when there has been heart damage)B-type Natriuretic peptide {BNP}) v. MUGA- TELLS HOW BAC HF IS: GIVES: EF and velocity vi. Echocardiogram best assessment tool vii. Hemodynamic assessment PAP/PAW |
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Goals of HF treatment:
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a. Improving gas exchange
b. Improving cardiac output c. Decreasing fatigue and weakness d. Preventing or Managing Pulmonary Edema |
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What steps are taken to Improve gas exchange:
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a. High Fowler’s position first step if pt has difficulty breathing, put arms on pillow.
b. Supplemental oxygen keep sats at 90% c. Continuous ECG monitoring vitals q hr |
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Na restriction to
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2.5 grams/day
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Type drug: Catopril
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ACEi
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ACEi:
1. SE |
1. 1st dose orthostatic hypotension
2. cough 3. hyperkalemia- due to decrease of aldosterone 4. renal failure 5. angio edema 6. fetal injury |
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ACEi
pt teaching Labs to monitor |
sit up slowly, dangle feet
monitor: K, kidney function- creatine clearance |