NUR 101
NUR 101/ NUR101 EXAM 2 ASSESSMENT |
QUESTIONS & ANSWERS| GRADE A| (VERIFIED
SOLUTIONS) (2025/ 2026 UPDATE)
1. Systole mechanical component of heart: - Mitral & Tricuspid
valves close
- Aortic & Pulmonic valves open
- this causes ejaculation of blood into aorta and pulmonic arteries
2. Diastole mechanism of the heart: - Aortic & Pulmonic valves close
- Mitral & Tricuspid valves open
- as blood is ejaculated, pressure decreases and the ventricles relax
3. Pathway through the heart: Inferior and superior vena cava -->
Right Atrium
--> Tricuspid Valve --> Right Ventricle --> Pulmonary valve -->
Pulmonary Artery
--> Pulmonary veins & capillaries (get O2) --> Left Atrium --> Mitral
Valve --> Left
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NUR 101
,Ventricle --> Aortic Valve --> Aorta --> out to body parts
4. Stroke Volume: Amount of blood pumped out of each ventricle
with each contraction
- Preload, Contractility, & Afterload
5. Preload: Amount of blood in ventricles at the end of diastole
6. Contractility: strength of cardiac contractions
7. Afterload: force the ventricles must exert to open the aortic and
pulmonic valves
8. Systemic Vascular Resistance: Resistance to ejaculated blood
based on diameter of vessel
9. Peripheral Tissue Perfusion: - blood flows through arteries and
capillaries to target tissue
- Pressure from cardiac contractions push blood through vessels into
interstitial spaces
10. Arterial Blood Pressure Equation: BP= Cardiac Output
(CO) x SVR
11. Neonates Perfusion: - have weak left ventricles low systolic
BP which increases after 6 weeks
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NUR 101
12. Puberty: - Heart vessels grow
- BP increases
- HR decreases
13. Perfusion in older adults: - Heart stiffens & thickens
- Heart vales calcify --> reduces cardiac efficiency
- Arteries lose elasticity --> increases BP
14. Perfusion: flow of blood through arteries and capillaries that
deliver nutrients and oxygen to cells & removes cellular waste
products
15. Central Perfusion: -Force of blood movement generated by
cardiac output
- Requires adequate Cardiac Output, BP, and Blood Volume
16. Cardiac Output Equation: CO= SV x HR
17. BP equation: Systolic/Diastolic
18. Cardiac Output: amount of blood pumped out of the heart in
1 minute
- Normal is 4-6mL/min in adults
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NUR 101
, - Has mechanical and electrical components
19. What happens to BP when there is vasodilation?: Lowers
BP
20. What happens to BP when there is vasoconstriction?:
Raises BP
21. Modified Risk Factors for poor perfusion: - Smoking
- Hyperlipidemia
- Sedentary lifestyle
- Obesity
- Diabetes
- HTN
- Excessive alcohol intake
22. Non-modifiable risk factors: Age, Gender, & Genetics
23. Electrical Conduction of the Heart: - SA nodes fire (if not
working AV fires) - AV nodes
- Bundle of HIS
- Purkinje Fibers