Misc. Flashcards
1
Q
Arrhythmogenic right ventricular myopathy - Gene
A
desmoglein 2
2
Q
Dilated (congestive) cardiomyopathy - etiologies
A
ABCCCD HP: chronic Alcohol abuse wet Beriberi Coxsackie B virus myocarditis chronic Cocaine use Chagas disease Doxorubicin toxicity Hemochromatosis Peripartum cardiomyopathy
3
Q
Law of LaPlace
A
Wall stress = (cavity pressure x radius)/(2 x wall thickness)
4
Q
pulsus paradoxus
A
Dec systolic bp by more than 10mmHg during inspiration
Seen in severe tamponade, asthma, obstructive sleep apnea, pericarditis, croup
5
Q
Sinus arrhythmia
A
HR increases during inspiration
Inspiration –> more blood flow through R heart, less through L –> lower bp –> baroreflex speeds HR
(opposite for expiration)
