12:54 Heart Case Study READ INSTRUC...T AONALCENTER FOR CASE STOOY TEACHNGIN SCE

Question

12:54 Heart Case Study READ INSTRUC...T AONALCENTER FOR CASE STOOY TEACHNGIN SCENCE Part Ill Cardiovascular Involvement Dr Collins called Nune Nan foom the patient's soom and confided. "Me. Helms is in bad shape. His lef posteromedial papillary muncle was damaged from his beant arack The papillary muncle is no longer able to maincal closue of the valve, and this has resulsed in mitrall valve peollage. Wih decreasing candiac ourput, this patiene is in for a fighe for his life. Nure Nan knew char maintaining candiac ourput was necewary for adequate blood How through the body. As Dr. Collins walked away. Nune Nan comgosed henself so ell Mn. Hdms the bad news and scturned to the patient's room. Nune Nan explained so Mrs He chr e hand had lef-sided hean failure and that his blood pressuse was slowly and steadily decreasing Questions 1. In genetal, how is the dinection of blood Bow disnee because of micral valve peolapse 2. Does the mitral valve prolaincrea, decrea, or ot change stroke volume (the amount of blood exiting the venericle with each ventricular contraction) 3. How does mitral valve prolapse decrease cardiac--(the mount of blood exing the ventricle per minute Explain how cardiac output determines blood possun Why is Mr. Helms' heart rate higher than nomal The Hean of the Poblen by Gamer and

Explanation / Answer

question 1:The mitral valve, is the heart valve that prevents the backflow of blood from the left ventricle into the left atrium of the heart. It is composed of two leaflets, one anterior and one posterior, that close when the left ventricle contracts.

Mitral valve prolapse (MVP) occurs when the leaflets of the mitral valve bulge (prolapse) into the heart's left upper chamber (left atrium) like a parachute during the heart's contraction.Mitral valve prolapse sometimes leads to blood leaking backward into the left atrium, a condition called mitral valve regurgitation.

question 4:The cardiac output is simply the amount of blood pumped by the heart per minute.

the cardiac output is the product of the heart rate, which is the number of beats per minute, and the stroke volume, which is amount pumped per beat.

CO = HR X SV

Increases in cardiac output, increase blood pressure. ... Cardiac Output = Heart Rate X Stroke Volume 22. Heart rate, cardiac output, and blood pressure all decrease with parasympathetic stimulation. They all increase with sympathetic stimulation.

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