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Peds - Module 3&4
Cardio - Chapter 17
| Question | Answer |
|---|---|
| Trabeculated | covered with trabeculae, cords of tissue that serves as a supporting structure by forming a septum that extends into an organ from its wall or capsule |
| regurgitation | a backward flowing, as in the return of solid fluids to the mouth from the stomach or the blackflow of blood through a defective heart valve |
| cardiac output | amount of blood discharged from the left or right ventricle per minute; product of stroke volume and heart rate |
| stroke volume | amount of blood ejected by the left ventricle with each heartbeat; product of preload, afterload, and contractility (inotropy) |
| B-type natriuretic peptide | a hormone secreted by the left or right ventricle of the heart; concentration of this peptide in the bloodstream rises during episodes of decompensated heart failure |
| positive inotropes | drugs used when poor contractibility is the cause of CHF (digoxin, or stronger dopamine drugs) |
| increased preload | the end-diastolic stretch of a heart muscle fiber - in the intact ventricle - approx. equal to the end- diastolic volume or pressure - est by measuring the central venous pressure or the pulmonary capillary wedge pressure |
| increased afterload | the force that impedes the flow of blood out of the heart. The resistance is primarily composed of the pressure in the peripheral vasculature, the compliance of the aorta, and the mass and viscosity of blood |
| stenosis | the constriction or narrowing of a passage or orifice |
| hypertropy | enlargement of existing cells |
| prostaglandin (PGE1) | chemical mediators produced by the tissues and found in many parts of the body |
| dilated (DCM) or congestive cardiomyopathy | cardiomyopathy associated with enlargement of the left ventricle of the heart and congestive heart failure |
| hypertrophic cardiomyopathy (HCM) | an autosomal dominant cardiomyopathy marked by excessive and disorganized growth of myofibrils, impaired filling of the heart (diastolic disfunction), a reduction in the size of ventricle cavities, and often ventriclular arrhythmias and sudden death |
| restrictive cardiomyopathy (RCM) | cardiomyopathy associated with lack of flexibility of the ventricle walls |
| atherosclerotic | marked by cholesterol-lipid-calcium deposits in the walls of arteries that may restrict blood flow |
| baroreceptors | a sensory nerve ending stimulated by changes in pressure |
| postinterventional catherization | BP should remain normal, watch for pulse pressure(the difference between systolic and diastolic BP) Normal pulse pressure is 40 - PDA may have wide pulse pressure but after closure should be normal. |
Created by:
Blackbeltmom
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