Cardiovascular differential diagnosis Flashcards
Diagnosis
An imbalance of myocardial oxygen supply and demand resulting in ischemic chest pain
acute coronary syndrome (ACS)
When do symptoms present with acute coronary syndrome?
when lumen is at least 70% occluded
What is Levine’s sign?
patient clenching fist over their sternum
(indicative of angina)
What are the 3 types of angina?
- unstable angina (crescendo angina)
- stable angina
- variant angina (Prinzmetal’s angina)
definition
Classic angina occurring during exercise or activity; occurs at a predictable rate-pressure product (RPP) and is relieved with rest and/or nitroglycerin
RPP = (HR x BP)
stable angina
diagnosis
coronary insufficiency without any precipitating factors or exertion. Chest pain is difficult to control and increases in severity, frequency, and duration.
unstable angina
(true/false) unstable angina is responsive to treatment such as nitroglycerin
false
increased risk of MI and/or lethal arrythmia
What is variant angina?
Angina caused by vasospasm of the coronary arteries in the absence of an occlusive disease
(true/false) Variant angina is unresponsive to nitroglycerin and/or calcium channel blockers
false - it is responsive
calcium channel blockers are used long-term
diagnosis
prolonged ischemia, injury, and death of an area of the myocardium caused by occlusion of one or more coronary arteries
myocardial infarction
What are the zones of infarction? Describe them.
- Zone of infarction: consists of necrotic, noncontractile tissue - ECG showed ST segment deviation
- Zone of injury: area immediately adjacent to the central zone; tissue is noncontractile and the cells are undergoing metabolic changes; electrically unstable with elevated ST segments over the injured area
- zone of ischemia: outer area with cells undergoing metaolic changes; electrically unstable with T-wave inversion
What are the types of heart failure?
- Left-sided HF (CHF)
- right-sided HF
- bicentricular failure
diagnosis
Characterized by pulmonary congestion, edema, and low cardiac input due to backup of blood from the left ventricle to the left atrium and lungs.
- cardiac arryhtmias and/or heart damage
- occurs with insult of the left ventricle from myocardial disease and excessive workload of the heart
Left-sided heart failure (CHF)
diagnosis
Characterized by increased pressure load on the right ventricle with higher pulmonary vascular pressures
- produces hallmark signs of jugular vein distention and peripheral edema
- mitral valve disease or chronic lung disease (cor pulmonale)
right-sided heart failure
diagnosis
- severe left ventricle pathology producing back up of blood into the lungs
- increased PA pressure
- Right ventricular pathology s/s
biventricular failure
What are associated symptoms to HF?
- osteoporosis
- myopathies
- muscle wasting
What is compensated heart failure?
When the heart returns to functional status with reduced cardiac output and exercise tolerance
Control achieved by:
- medical therapy
- physiological compensatory mechanisms: SNS stimulation, LV hypertrophy, anaeroic metaolism, cardiac dilation, and arterial vasoconstriction
What is decompensated heart failure?
Structural or functional change in heart leads to the heart’s inability to eject and/or accommodate blood within normal physiological levels
Does decompensated heart failure occur abruptly or gradually?
Can occur abruptly or gradually
medical emergency
What are the s/s of right-sided HF?
- dyspnea
- fatigue
- rales
- peripheral edema
What are the color zones associated with clinical manifestations of heart failure and PT recommendations?
- Green
- yellow
- red
What are the s/s associated with the green zone of heart failure? What are the PT recommendations?
- no s/s
- continue activity as tolerated
What are the s/s associated with the yellow zone of heart failure? What are the PT recommendations?
- 2 to 3 pound weight gain within 24 hours
- increased cough
- peripheral edema
- SOB
- orthopnea
- symptoms can indicate an adjustment in medications and warrants communication with physician
What are the s/s associated with the red zone of heart failure? What are the PT recommendations?
- SOB at rest
- unrelieved chest pain
- wheezing or chest tightness at rest
- paroxysmal nocturnal dyspnea
- weight gain/loss of 5+ pounds within 3 days
- confusion
- immediate medical attention is needed
- pt must sit in a chair to sleep
diagnosis
elevation of blood glucose levels and accelerated atherosclerosis
diabetic angiopathy
What is a major complication of diabetic angiopathy?
- neuropathy
- neurotropic ulcers that can lead to gangrene and amputation