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93 Cards in this Set
- Front
- Back
If an unnamed branch of an artery has significant atherosclerosis, what does the pt. probably also have?
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Diabetes
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What is the number one risk factor for atherosclerosis?
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high LDL
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What is the key lesion of atherosclerosis?
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atheroma or plaque
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What disease leaves cholesterol esters all over the tissues? (hint: orange tonsils)
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tangier's disease
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Risk factors for atherosclerosis? (lonnnng list)
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LDL, smoking, HTN, DM, lack of exercise, (hereditary) hypercoagulable blood, metabolic syndrome (X), elevated homocysteine, chronic kidney disease/uremia, adult onset growth hormone deficiency
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According to Friedlander, you can eat what you please if your cholesterol remains under what?
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200 mg/dl
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What causes death do due ischemic heart disease?
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Rhythm disturbances
Muscle loss Rupture (free wall, septum, papillary muscle) Aneurysm formation, mural thrombi Chronic ischemic heart disease |
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What can cause subendocardial watershed infarcts?
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hypotension, shock
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What can you see in minutes 0-30 of MI?
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Wavy fibers (glycogen loss)
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What can you see in 1-2 hours of MI?
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Mitochondrial calcification, maybe contraction bands,
maybe hydropic change / fatty change |
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What can you see in 4-8 hours of MI?
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Earliest nuclear changes; neutrophils appear;
Maybe dark mottling grossly |
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What can you see in 8-24 hours of MI?
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Pallor grossly, coagulation necrosis, soft by 24 hr
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What can you see in 24-72 hours of MI?
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Lots of polys, obvious necrosis, yellow grossly
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What can you see in 3-7 days of MI?
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Macrophages and polys; granulation tissue at rim
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What can you see in 10 days of MI?
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Macrophage cleanup, good granulation tissue
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What can you see in 2-6 weeks of MI?
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Macrophage cleanup continues; scar develops
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Match the occluded vessel w/ its transmural infarct type:
Left anterior descending Left circumflex Left main Right main |
Left anterior descending: Anteroseptal infarct
Left circumflex: Anterolateral infarct Left main: Entire anterior wall Right main: Inferior wall |
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What is Lipomatosis cordis?
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excessive epidardial fat; patients are not necessarily overweight
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What are the 3 ways that atherosclerosis causes harm?
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1. occluding arteries slowly over time (i.e. angina)
2. occluding arteries suddenly by rupture of plaques or hemorrhages into plaques 3. weakening the wall os arteries (aneurysms) |
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In descending order, top 5 manageable risk factors for atherosclerosis?
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high LDL, smoking, HTN, DM, lack of exercise
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What does smoking do to LDL
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oxidizes it yo
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What is the main molecular problem w/ DM causing atherosclerosis?
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glycosylation end-products (non-enzymatic glycosylation of proteins)
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Pt. has near-zero HDL, orange tonsils, low LDL, defect of ABCA1 gene. What disease?
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tangier disease
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What may elevate homocysteine?
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1. inborn error of metab.
2. low intake of folic acid 3. low intake of vit. B12 |
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What are 3 bad effects of homocysteine?
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1. mitogen for vascular smooth muscle
2. damages endothelium 3. makes blood hypercoagulable |
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In atherosclerosis, what are the innocent precursors, time bombs, and the killers
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fatty streaks, fibrous plaques, and complicated plaques
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If injury in atherosclerosis reaches the media, what will surely happen?
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activation of the clotting cascade, smooth muscle cells will migrate in, and fibrosis will occur
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How do you know the dominant coronary artery?
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whichever supplies the posterior descending coronary artery
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What is cardiac syndrome x?
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classic angina clinically but wide-open coronaries
smooth muscle of BV's don't dilate or constrict to easily |
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Two most common causes of MI?
Other (possible) causes? |
1. atherosclerosis
2. cocaine Others: prinzmetals coronary spasm, myocardial bridging, vasculitis, emobolization, syphilis, dissecting hematoma, shock + LHF |
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What are some common complications of MI's?
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rhythm disturbances, LHF, cardiogenic shock (>40% necrosis), rupture (softest on days 3-7), aneurysm formation, mural thrombus, and embolization
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Post MI rupture of free wall results in what? rupture of septum? rupture of papillary muscle?
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free wall: hemopericardium, tamponade, and instant death
septum: sudden L-R shunt papillary: severe MR |
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Causes of sudden cardiac death?
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coronary atherosclerosis (most common, usually 75% concentric stenosis of all 3 coronaries)
cocaine heart coronary malformations (e.g. having only one) inflow problems (atrial myxoma) outflow problems (AS, cor pulmonale) WPW amyloid in bundle of HIS commotio cordis (blow to chest) glue sniffing hemochromatosis (iron overload) myocarditis (even just a patch) VSDs involving bundle of His long QT brugada syndrome (Na channel): elev. ST in V1,2,3, |
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What vitamin protects from heart problems (sudden cardiac death)?
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vit. E.... goldstrich says no though...... who to believe... neither?
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What size dust particle are deposited at respiratory bronchioles (the bad ones)?
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1-3 microns
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RA or SLE or PM-DM w/ inorganic pneumoconiosis
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caplan's syndrome
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Coal dust increases risk for what cancer?
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stomach cancer
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What about the structure of silica is essential to its fibrogenicity?
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tetrahedral configuration
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Before 1970, where could one get the heaviest exposure to asbestos?
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shipyards
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What is the principal risk factor for mesothelioma?
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asbestos
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Asbestosis most often causes which cancer?
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common bronchogenic carcinoma.... did he trick you?
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A pt. whose occupation was in the "rocket and fluorescent bulb" industry presents w/ interstitial lung fibrosis. Closer look reveals granulomas w/ activated macrophages and Th cells. DIagnosis?
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berylliosis
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IgE-mediated type III-injury vasculitis.... spores from moldy hay... diagnosis?
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hypersenitivity pneumonitis (farmer's lung)
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Pt. exposed to mold in dry sugar cane. now has ... bad lungs. diagnosis?
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bagassosis
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I gots the 'monday asthma' after returning to the cotton fields. diagosis?
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byssinosis (cotton lung)
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Down's syndrome: most likely heart defect?
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endocardial cushion defect
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turner's syndrome: most likely heart defect?
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PDA and preductal coarcation
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kartagener's... what happens to the heart?
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dextrocardia
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fetal alcohol syndrome. likely heart defect?
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VSD
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How do you pathologically define cyanosis?
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5gm/dL or greater of UNoxygenated hemoglobin in art blood
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pulmonary artery and aorta are single vessel overriding a VSD. diagnosis?
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truncus arteriosis
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Most common type of ASD?
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ostium secundum defect (90%)
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mitral stenosis + ASD...
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lutembacher's syndrome
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machinery murmur, pathognomonic for ?
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PDA
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Tricuspid valve is way to low!
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ebstein's anomaly
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Diabetes and prolonged HTN can do what to arterioles?
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hyaline arteriolar sclerosis
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malignant HTN, scleroderma, and HUS can do what do vasculature?
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hyperplastic (onion-skinning) atereriolar sclerosis... and probably necrotizing sclerosis later
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Hepatitis B infection in the past. ANCAS. migraine, vague aches, stroke, heart attack, bowel infarcts, gangrene. THREE-layer vasculits?
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polyarteritis nodosa
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type III injury of venule w/ palpable purpura
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leukocytoclastic vasculitis
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eosinophilic vasculitis w/ asthma
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churg-strauss disease
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lung cavities, segmental necrotizing glomerulonephritis, granulomas, anti-proteinase 3....
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wegener's granulomatosis
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Pt over 60. jaw claudication. polymyalgia rheumatica. granulomatous thickening of the inner portions of the branches of the external carotids. elevated sed rate. heachache
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temporal (giant-cell) arteritis.... oh and his temporal arteries were tender
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Young adult pt. aortic arch and its branches undergo thickening. granulomas. weak pulse in upper extremities.
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takayasu's pulseless disease
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febrile toddler pt. Japanese. non-purulent conjunctivitis in both eyes. rash. red, cracked lips. red palms and soles....
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Kawasaki's disease
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Young smoker. inflamed/scarred neurovascular bundles. neutrophils adjacent to epithelioid giant cells deep inside thrombi....
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buerger's disease (thromboangiitis obliterans)
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What diameter of abdominal aorta constitutes an aneurysm?
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3 cm (5 cm or more is likely to burst)
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What bug may infect atherosclerotic aortic aneurysm?
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salmonella
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tree bark grooves on the intima of the aortic root dilation
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syphilitic aneurysm
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What genetic conditions can increase risk for an aortic dissection (not peeps w/ HTN)?
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marfans and ehler danlos
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What is responsible for the stasis pigmentation inf ischemic stasis ulcers?
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hemosiderin
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What usually causes trosseau's migratory thrombophlebitis?
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cancer of the pancreas
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resembles erectile tissue, but nothing special happens when you rub it
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hemangioma
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giant hemangioma over skin, hemangion in the meninges.... common is what syndrome?
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sturge-weber
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painful tumor of smooth muscle of a little thermoregulatory structure (vestigial)?
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glomus tumor
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You see these red spots (vascular malformations) most often on the lips in this disease....
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hereditary hemorrhagic telangiectasia (Osler-weber-rendu)
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AIDS pt. HHV-8. nasty skin lesions.
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kaposi's sarcoma
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Pt. presents w/ deep reddening of the skin in a streak up his arm w/ warmth, lymphandentitis, and a raised border around the affected area.
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lymphangitis
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What is a characteristic feature of an EM of endothelium?
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Weibel-Palade bodies
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Heart is big, but emptying fine. myocytes are thicker w/ sarcomeres laid down alongside existing ones. accompanied by AS
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concentric hypertrophy
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Big heart. NOT empyting properly. myocytes are longer and laid down beyond existing ones.
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eccentric hyperptrophy
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hypertrophic heart. uneven fiber enlargement and scrambling
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hypertrophic cardiomyopathy
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Causes of high-output HF?
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anemia, hyperthyroidism, high fever, shunts b/w artery and vein (beriber, paget's)
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neutrophilic myocarditis. probably caused by what?
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meningococcemia
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eosinophilic myocarditis w/ fibrosis of the endocardium... what is it?
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loeffler's
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eponym of idiopathic giant-cell myocarditis
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fiedler's myocarditis
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EKG w/ epsilon wave. fatty ingrowth and fibrosis in the wall of the RV. diagnosis?
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ARVC/ARVD (fibrolipomatosis)
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What conditions can lead to dilated cardiomyopathy?
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alcoholism, pregnancy, acromegaly, polymyositis-dermatomyositis, myocarditis, sarcoidosis, chagas, radiation, etc.
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Very enlarged trabeculae w/ blood lakes in the wall of one or both ventricles. can produce dilated or restrictive pattern. what is it?
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noncompaction cardiomyopathy
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Most common cause of sudden death in competitive athletes?
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hypertrophic cardiomyopathy
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Amyloid, bouncing heart....
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restrictive cardiomyopathy
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How much fluid is required to produce a tamponade?
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~150 ml, rapid accumulation (but this is FRIEDLANDER'S estimate... Johnston says 250... so great)
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2 probable causes of hemorrhagic pericarditis?
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TB and cancer
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Marker for CHF?
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natriuretic peptide (BNP)
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