Exam (elaborations)
NSG 117 Exam 1 Questions And Answers Latest Update
- Course
- NSG 117
- Institution
- Chamberlain College Of Nursing
NSG 117 Exam 1 Questions And Answers Latest Update
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Solution 2024/2025Pepper
NSG 117 Exam 1 Questions And Answers Latest
Update
Perfusion ANS✔✔ the flow of blood through arteries and capillaries
delivering nutrients and oxygen to cells
What is required to transport blood trough through patent blood vessels for
distribution in the tissues throughout the body ANS✔✔ Sufficient cardiac
output
When blood supply is available but decreased it is called ANS✔✔ Ischemia
Chest pain produced from ischemia is called ANS✔✔ Angina pectoris
-the function of myocardial cells is reduced but cells do not die
Prolonged ischemia leads to ANS✔✔ necrosis and eventually infarction if
blood supply is not restored.
Myocardial infarction indicates ANS✔✔ Death of myocardial tissue with an
inability to regenerate
Disorders that lead to changes in perfusion include ANS✔✔ Acute illnesses
such as myocardial infarction or shock
Chronic disorders such as hypertension, heart failure, and stroke.
, Solution 2024/2025
Pepper
Central perfusion is generated by ANS✔✔ Cardiac output;
The amount of blood pumped by the heart each minute
Cardiac output is an outcome of ANS✔✔ coordinated effects of electrical and
mechanical factors that move blood through the heart into the peripheral
vascular vessels.
-this central perfusion propels blood to all organs and their tissues from
patent arteries through capillaries and returns blood to the heart through
patent veins.
Central perfusion of blood begins when ANS✔✔ the heart is stimulated by an
electrical impulse that originates in the sinoatrial (SA) node and travels to
the atrioventricular (AV) node
Central perfusion requires ANS✔✔ adequate cardiac function, blood
pressure, and blood volume
CO=SV x HR
Normal cardiac output ranges from ANS✔✔ 4 to 6 L/minute in the adult
Two variables that contribute to cardiac output are ANS✔✔ Stroke volume
(amount of blood ejected with each contraction) and Heart rate
Systemic Vascular Resistance (SVR) ANS✔✔ The amount of resistance within
the vasculature the heart pumps against (afterload)
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