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Author Question: A client's stroke volume (SV) is 85mL/beat and the heart rate (HR) is 71 beats per minute. What ... (Read 400 times)

captainjonesify

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on: Jun 25, 2018
A client's stroke volume (SV) is 85mL/beat and the heart rate (HR) is 71 beats per minute.
 
  What is the client's cardiac output (CO) rounded to the nearest whole number?

Question 2

The nurse educator is teaching a group of student nurses regarding the various layers of the heart. Which statements will the educator include?
 
  Select all that apply.
  A) The endocardium covers the entire heart and great vessels.
  B) The endocardium is the muscular layer of the heart that contracts during each heartbeat.
  C) The outermost layer of the heart is the epicardium.
  D) The myocardium consists of myofibril cells.
  E) The myocardium has four layers.


snackralk

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Reply #1 on: Jun 25, 2018
Answer to Question 1

Answer: 6 Liters (L)

CO = SV  HR
85mL = 0.085 L
CO = 0.085  71 = 6.035 = 6L

Answer to Question 2

Answer: C, D

The heart wall consists of three layers of tissue: the epicardium, the myocardium, and the endocardium. The epicardium covers the entire heart and great vessels, and then folds over to form the parietal layer lining the pericardium and adheres to the heart surface. The myocardium, the middle layer of the heart wall, consists of specialized cardiac muscle cells (myofibrils). The endocardium, which is the innermost layer, is a thin membrane composed of three layers. The myocardium is the muscular layer of the heart that contracts during each heartbeat. The outermost layer of the heart is the epicardium.


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