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Test your basic knowledge |
Cardiology
Start Test
Study First
Subject
:
health-sciences
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. delta wave on ECG - accesory conduction pathway from atria to ventricles - reentry leading to supraventricular tachycardia
Ischemic heart dz - mitral valve prolapse - LV dilation
Cardiac tamponade - asthma - obstructive sleep apnea - pericarditis and croup
Wolff - Parkinson white syndrome
3rd degree block - pacemaker - Lyme disease
2. What does an isoelectric ST segment indicate?
Ventricles are depolarized
LAD
Late diastolic murmur following an opening snap
ASD - VSD - AV septal defect (endocardial cushion defect)
3. What causes orthopnea?
3rd degree syphillus - syphillit heart disease can lead to aortic valve incompetence
Inc venous return exaccerbates pulm vasc congestion
Inc interstitial osmotic pressure pulling fliud out of capillaries
Tetrology of fallot - pulmonary stenosis - RVH - overiding aorta - VSD
4. How does a patient with Tet of fallot learn to improve symptoms?
10%
Dec plasma proteins
Preload
Squat. Compression of femoral arteries - inc TPR - dec
5. What is sudden cardiac death most commonly due to...
2nd degree AV block - mobitz type 1
Anterosuperior displacement of the infundibular septum
S. epidermidis
V fib arrhythima
6. What stimulates release of calcium from the SR?
CHF
Inc central venous pressure - inc resistance to portal flow
Extracellular calcium - calcium induced calcium release
Ventricles are depolarized
7. How do beta blockers decrease contractility?
Transposition of great vessels
The operating point of the heart
Decrease in cAMP
Increased efferent SANS and decreased efferent PANS
8. What causes tet of fallot?
Increase contractility
Anterosuperior displacement of the infundibular septum
Posterior descending (80% off the RCA - 20% off the circumflex)
Vasocxn - while other tissues it causes vasodilation
9. What other sign is often present with congenital long QT syndrome - why?
Lymphangiosarcoma
Sensironeural deafness - defects in sodium and potassium channels - jervell and lange - neilsen syndrome
Mechanican contraction of the ventricles
LAD > RCA > circumflex
10. Which artery supplies the SA and AV nodes?
In RA return (inspiration)
Venodilators (nitrogylcerine)
Transfusion
RCA
11. in the JVP - What is the v wave?
Abdominal aorta>coronary artery>popliteal artery>carotid artery ACoPCa
Inc RA pressure - due to filling against closed tricupsid valve
Atrial contraction
Purkingee>atria>ventricles>AV node
12. Which murmur is heard in aortic stenosis?
Takayasu's arteritis
Fever - erythema marginatum - valvular damage - ESR - red hot joints - subQ nodules - St. vitus dance (chorea)
Tricuspid - don't tri drugs - S. aureus - pseudomonas - candida
Crescendo - decrescendo systolic ejection murmur following ejection click
13. On the cardiac cycle graph - on which corners do the opening and closing of the aortic and mitral valves occur?
Lower right - MC - upper right - AO - upper right AC - lower left MO
Mitral valve prolapse
Beta 1 inc HR and cont - alpha 1 venocxn - alpha 1 arteriolar vascxn
Granulomatous vasculitis with eosinophilia. Asthma - sinusitis - skin lesions and periphereal neuropathy (wrist/foot drop) heart - GI - kidneys
14. Which organ has ht highest blood flow per gram of tissue
Subendocardial
Kidney
HypoK and bradycardia
In RA return (inspiration)
15. lymphatic malignancy associated with persistant lymphadema - post radical mastectomy
Lymphangiosarcoma
Increase in Pc
In HF
Troponin I
16. decrease blood flow to the skin due to arteriolar vasospasm in cold temp - emotional stress - also in SLE and CREST
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17. most common primary cardiac tumor in adults - ball - valve obstruction in left atrium
Myxomatous degeneration - RF - chordae rupture
Tetrology of fallot - pulmonary stenosis - RVH - overiding aorta - VSD
Cardiac tamponade - asthma - obstructive sleep apnea - pericarditis and croup
Myxoma
18. Which murmur is characteristic of mitral/tricuspid regurg?
Angiosarcoma
RV contraction (closed tricuspid valve bulding into atrium
Holosystoiic
Decreases
19. In an anteroseptal infarct - which artery is effected - and which leads show Q waves?
LAD - V1- V2
Neg inotropy - HF - narcotic overdose
Fetal right to left - neonate left to right leading to RVH and failure
EKG
20. What is the formula for EF?
SV/ EDV
Fast volatge gated Na channels
Venodilators (nitrogylcerine)
Initial repol - inactivation of of voltage gated Na channels - voltage gated K channels begin to open
21. EDV - ESV
Increase contractility
ASD - VSD - AV septal defect (endocardial cushion defect)
Stroke volume
LCX - V4- V6
22. fibrinous pericarditis several weeks post MI
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23. Which bacteria can cause endocarditis from prosthetic valves?
Aneurysms - ischemia - infarcts - peripheral vasc dz - thromboemboli
S. epidermidis
Troponin I
The plateau period
24. When do you find hemosiderin laden macrophages in the lungs?
Metastasis from melanoma or lymphoma
Hematocrit
During HF from microhemorrhages from inc pulm cap pressure
Dilated cardiomyopathy
25. serum marker for wegener's
Viridans streptococci
C - ANCA
In RA return (inspiration)
Inc interstitial osmotic pressure pulling fliud out of capillaries
26. PCWP is an estimate of...
During diastole
Left atrial pressure
Arteriorles
Hemorrhage
27. Which bacteria causes endocarditis in the presence of colon cancer
Liver
S. bovis
During HF from microhemorrhages from inc pulm cap pressure
LAD > RCA > circumflex
28. dilated tortous veins due to chronically inc venous pressure - poor wound healing - varicose ulcers
Kussmaul's sign - cardiac tamponade - pulsus paradoxus
Holosystolic - harsh sounding murmur - loudest over tricuspid area
CFX
Varicose veins - thromboembolism rare
29. When and why do you hear the S4 sound
Increase intracellular Na - resulting in increased Ca
Left heart failure
Late in diastole - high atrial pressure - pushing against a stiff LV wall - associated with ventricular hypertrophy
Truncus - tet of fallot
30. What is the early and late lesion in rheumatic heart disease
Aneurysms - ischemia - infarcts - peripheral vasc dz - thromboemboli
QRS complex
Myxoma
Mitral valve prolapse
31. in the JVP - What is the c wave?
Stroke volume
Unstable/crescendo angina
RV contraction (closed tricuspid valve bulding into atrium
At least 55%
32. What is the progression of atherosclerosis?
Tricuspid - don't tri drugs - S. aureus - pseudomonas - candida
Endothelial cell dysfxn - mac and LDL accum - foam cell - fatty streaks - smooth muscle cell migration - fibrous plaque - comlex atheromas
Fluid movement through capillaries
V fib arrhythima
33. Which class of drugs decrease preload
Polyarteritis nodosum
Venodilators (nitrogylcerine)
S. bovis
Gap junctions
34. What are the complications from bacterial endocarditis?
Pulse pressure
Myxoma
Dilation
Chordae rupture - GN - suppurative pericarditis - emboli
35. Mitral stenosis is most often secondary to which condition?
Atrial contraction
RF
LAD > RCA > circumflex
Gap junctions
36. In a lateral wall infarct - which artery is effected - and which leads show Q waves?
3rd degree syphillus - syphillit heart disease can lead to aortic valve incompetence
The operating point of the heart
LCX - I - aVL
Wolff - Parkinson white syndrome
37. Irregularly irregular ECG - no p waves: dx and treatment
PDA
P02
Angiosarcoma
A fib - beta block or ca channel block - warfarin - thromboembolism prophylaxis
38. Which bacteria causes rheumatic heart disease
The plateau period
Decrease in activity of Na/Ca exhanger and increase in contractility
Group a beta hemolytic strep
The LA - can cause dysphagia because of compression of the esophageal nerve or hoarseness by compressing the the recurrent laryngeal nerve
39. congenital heart defect with congenital rubella
Fast volatge gated Na channels
Can progess to V fib
Septal defects - PDA - pulm art stenosis
Late in diastole - high atrial pressure - pushing against a stiff LV wall - associated with ventricular hypertrophy
40. When is the scar completely formed in an MI?
Shunt - VSD - PDA or patent foramen ovale - due to failure of the aorticopulmonary septum to spiral
7 weeks
Hyperlipidemia
Increased efferent SANS and decreased efferent PANS
41. What causes ankle - sacral edema - jugular venous distention
No
RV failure - in venous pressure
Arteriorles
The operating point of the heart
42. The carotid sinus transmits along which nerve?
Cyclophosphamide and corticosteroids
Polyarteritis nodosum
Glossopharyngeal to soliary nucleus of medulla
Increasing activity of Ca pump in SR
43. congenital heart defect with 22q11
Truncus - tet of fallot
Kussmaul's sign - cardiac tamponade - pulsus paradoxus
Group a beta hemolytic strep
Transmural
44. What causes the early cyanosis in Tet of Fallot?
No
R to L shunt caused by stenoic pulmonic valve
Activated histiocytes
SA and AV nodes
45. What happens with a decrease of extracellular Na
Afterload (proportional to peripheral resistance)
Decrease in activity of Na/Ca exhanger and increase in contractility
CFX
Pulmonic stenosis and RBBB
46. bening capillary hemangioma of elderly - does not regress
Liver
Atrial contraction
Conduction delay through AV node - nl < 200 msec
Cherry hemangioma
47. What is associated with paradoxical spliting of S2
At least 55%
Henoch - Schlonlein purpura
Endothelial cell dysfxn - mac and LDL accum - foam cell - fatty streaks - smooth muscle cell migration - fibrous plaque - comlex atheromas
Aortic stenosis or LBBB
48. What does prolonged QT predispose to?
Truncus - tet of fallot
Shunt - VSD - PDA or patent foramen ovale - due to failure of the aorticopulmonary septum to spiral
Torsades de pointes
Unstable/crescendo angina
49. What is the characteristic pulse in aortic stenosis?
Stroke volume affected by contractility - afterload - and preload
Pulsus parvus and tardus - weak - can lead to syncope
Increase contractility
RF
50. PCWP > LV diastolic pressure
Mitral stenosis
Non
A fib - beta block or ca channel block - warfarin - thromboembolism prophylaxis
Torsades de pointes