NUR 222 Hemodynamic Monitoring Week 3_LATEST | Hemodynamic Monitoring Week 3_A Grade
NUR 222 Hemodynamic Monitoring Week 3 Complete the following statements: and online for A&P review #1 A&P review #2 1. During systole, the aortic and pulmonary valves are open and the Tricuspid and Mitral valves are closed. (p. 740; AP review) 2. During diastole, the Mitral and Tricsupid valves are open and the pulmonary and aortic are closed. 3. Atrial contraction is referred to as atrial kick and is responsible for as much as 20% contribution to CO. (P. 851) 4. The left ventricle never ejects the entire volume it receives during systole. The portion of blood the left ventricle ejects during systole is referred to as the Ejection Fraction. What amount is normal- 60% (p. 822) 5. Preload is the volume of blood that is in the ventricle just before ejection occurs and is called the Left Ventricle End Diastolic pressure and when measured is known as p. 1738 6. What is the formula for calculating the MAP? At what point is perfusion to vital organs compromised? SBP + 2 (DBP)/3 Normal range is 70-90 mm Hg 7. Define SVR and factors that would increase SVR and factors that would decrease SVR. SVR is an estimate of LV afterload. It represents the average of resistence of all vascular beds. An SVR increases with vasoconstriction and hypovolemia. A SVR decreases with vasodilation. 8. Define preload. What conditions/factors affect preload? Preload is the amount of stretch in the myocardial fibers at the end of diastole. It represents VOLUME. Volume overload increases preload while fluid volume deficit decreases it. - - - - - -- - Continued
Información del documento
- Subido en
- 26 de marzo de 2021
- Número de páginas
- 12
- Escrito en
- 2020/2021
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
