Nur 111(Perfusion, Physical Assessment ) Exam 2 Questions And Answers Elaboration!!

NUR 111(PERFUSION, PHYSICAL ASSESSMENT ) EXAM 2
QUESTIONS AND ANSWERS ELABORATION!!
Ventilation
Answers :movement of air in and out of the lungs
(expiration and inspiration)
Experation


Answers :breathing out
inspiration


Answers :breathing in
Compliance


Answers :the ability of the lungs to distend or expand in response to increased
intraalveolar pressure
airway resistance


Answers :the increase in pressure that occurs as the diameter of the airways
decreases from mouth/nose to alveoli
residual volume


Answers :Amount of air remaining in the lungs after a forced exhalation
vital capacity


Answers :the maximum amount of air that can be exhaled after a maximum
inhalation

,pulmonary circulation


Answers :moves blood to and from the lungs during alveolar gas exchange
Difussion


Answers :movement from an area of higher concentration to an area of lower
concentration (occurs at alveoli capillary membrane)
oxygen transport system


Answers :consists of the lungs and cardiovascular system
3 things influencing the capacity of blood to carry oxygen


Answers :amount of dissolved oxygen in plasma, amount of hemoglobin, ability of
hemoglobin to bind with oxygen
Stroke Volume


Answers :The amount of blood ejected each heartbeat
cardiac output


Answers :amount of blood pumped by each ventricle in one minute
- If HR increases so does the cardiac output
- provides more energy to the muscles
Afterload


Answers :how much pressure it takes to open valves
How does blood flow through the unoxygentated side of the heart?

, Answers :SVC/ IVC -> RA -> tricuspid -> RV -> pulmonary valve-> pulmonary
artery -> lungs
How does blood flow through the oxygenated side of the heart?


Answers :lungs -> pulmonary veins -> LA -> mitral valve -> LV -> Aortic Valve -
> Aorta
systolic pressure


Answers :Blood pressure in the arteries during contraction of the ventricles
- The most pressure that the heart will exert to open the lungs
diastolic pressure


Answers :the pressure in the arteries when the heart is at rest
- The least about of pressure that the heart exerts
S1


Answers :first heart sound
- Atria and Vent close
S2


Answers :aortic and pulmonic valves close
Explain the route of an action potential


Answers :Action potential -> SA node -> AV node -> Bundle of His -> purkinje
Fibers -> Ventricle of the heart