Learning Guide- Hemodynamic
Monitoring for NUR222
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Learning Guide- Hemodynamic Monitoring
for NUR222
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
m
er as
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
co
eH w
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
o.
beds. An SVR increases with vasoconstriction and hypovolemia. A SVR decreases with
vasodilation.
rs e
ou urc
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.
o
aC s
9. Define afterload. What conditions/factors affect preload? Afterload is the RESISTANCE
vi y re
against which the ventricles pump blood. An increased afterload occurs with
vasoconstriction while a decreased afterload occurs with vasodilation.
10. Describe CO and factors that effect CO. (as above).
ed d
CO= HR x SV
ar stu
Explain Stoke Volume as related to CO
SV is affected by preload, afterload, and contractility. If SV decreases, HR increases to
compensate.
is
Explain Heart Rate as related to CO
Increased HR increases CO, vise versa.
Th
11. Define “contractility” and factors that influence cardiac contractility. The ability of the
muscle cell to become shorter given suitable stimulus.
sh
12. PAWP means Pulmonary Artery Wedge Pressure.
Left ventricular preload is called left ventricular end-diastolic pressure. PAWP, a
measurement of pulmonary artery capillary pressure reflects left ventricular end-
diastolic pressure under normal conditions (what are these conditions?
No mitral valve dysfunciton, intracardiac defect, or dysrhythmia
13. Describe how the PA catheter advances through the heart.
NUR 222 Sp 2016 1
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Monitoring for NUR222
written by
kingamor
www.stuvia.com
Downloaded by: kingamor |
Distribution of this document is illegal
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Learning Guide- Hemodynamic Monitoring
for NUR222
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
m
er as
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
co
eH w
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
o.
beds. An SVR increases with vasoconstriction and hypovolemia. A SVR decreases with
vasodilation.
rs e
ou urc
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.
o
aC s
9. Define afterload. What conditions/factors affect preload? Afterload is the RESISTANCE
vi y re
against which the ventricles pump blood. An increased afterload occurs with
vasoconstriction while a decreased afterload occurs with vasodilation.
10. Describe CO and factors that effect CO. (as above).
ed d
CO= HR x SV
ar stu
Explain Stoke Volume as related to CO
SV is affected by preload, afterload, and contractility. If SV decreases, HR increases to
compensate.
is
Explain Heart Rate as related to CO
Increased HR increases CO, vise versa.
Th
11. Define “contractility” and factors that influence cardiac contractility. The ability of the
muscle cell to become shorter given suitable stimulus.
sh
12. PAWP means Pulmonary Artery Wedge Pressure.
Left ventricular preload is called left ventricular end-diastolic pressure. PAWP, a
measurement of pulmonary artery capillary pressure reflects left ventricular end-
diastolic pressure under normal conditions (what are these conditions?
No mitral valve dysfunciton, intracardiac defect, or dysrhythmia
13. Describe how the PA catheter advances through the heart.
NUR 222 Sp 2016 1
This study source was downloaded by 100000822479833 from CourseHero.com on 04-01-2021 19:23:33 GMT -05:00
https://www.coursehero.com/file/34559681/Answers-Week-3-HWdoc/
Downloaded by: kingamor |
Distribution of this document is illegal
