*NURSING > EXAM PROCTORED > A&P 3 FINALExam filled out (All)
Bios 255 Final exam review Be familiar with left and right sided heart failure and what the consequences are (remember the case study that we did in lecture and lab?) (698) Left side: One cause of ... mitral insufficiency, in which there is backflow of blood from the left ventricle into the left atrium, is mitral valve prolapse (MVP). In MVP one or both cusps of the mitral valve protrude into the left atrium during ventricular contraction. Mitral valve prolapse is one of the most common valvular disorders, affecting as much as 30% of the population. It is more prevalent in women than in men, and does not always pose a serious threat. The left side of the heart receives blood rich in oxygen from the lungs and pumps it to the remainder of the body. As the ability to pump blood forward from the left side of the heart is decreased, the remainder of the body does not receive enough oxygen especially when exercising. This results in fatigue. In addition, the pressure in the veins of the lung increases, which may cause fluid accumulation in the lung. This results in shortness of breath and pulmonary edema. Right side: In aortic stenosis the aortic valve is narrowed, and in aortic insufficiency there is backflow of blood from the aorta into the left ventricle. In right-sided heart failure, the right ventricle loses its pumping function, and blood may back up into other areas of the body, producing congestion. Congestion affects the liver, the gastrointestinal tract, and the limbs. In addition, the right ventricle may be unable to pump blood efficiently to the lungs and to the left ventricle. [Show More]
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