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NR283 Exam 2 (week 4) Chamberlain 80 QUESTIONS AND ANSWERS GRADED A RATED A+
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NR283 Exam 2 (week 4) Chamberlain 80 QUESTIONS AND ANSWERS GRADED A RATED A+
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NR283 Exam 2 (week 4) Chamberlain 80 QUESTIONS ANDANSWERS GRADED A RATED A+
what happens during ventricular diastole? - CORRECT ANSWERthe ventricles are filling with blood
what happens during ventricular systole? - CORRECT ANSWERthe ventricles contract, blood is forced
through pulmonary and aortic valves into the pulmonary artery and aorta
client with decreased peripheral pulses with lab results that show hypocalcemia. what is likely the
problem?
preload, afterload, or contractility? - CORRECT ANSWERcontractility
What is the job of the right side of the heart? what kind of blood vessels empty into this side of the
heart? - CORRECT ANSWER-send deoxygenated blood to the lungs
-veins
what is the job of the left side of the heart? what kind of blood vessels does it empty into? - CORRECT
ANSWER-send oxygenated blood to the body
-arteries
flow of blood in the right side of the heart - CORRECT ANSWER-enters superion/inferior vena cava
-R atrium
-tricuspid valve
-R ventricle
-pulmonic valve
-pulmonary artery
-TO LUNGS
flow of blood through the left side of the heart - CORRECT ANSWER-pulmonary vein
,-L atrium
-bicuspid valve
-L ventricle
-aortic valve
-aorta
-TO BODY
what is the function of the heart? - CORRECT ANSWERpump blood through the body to supply oxygen
to the tissues and remove CO2
where does the conduction of the heart rhythm start? - CORRECT ANSWERSA node
what can problems with the SA node lead to? - CORRECT ANSWERArrhythmia, dysrhythmia, and other
rhythm problems in the heart
What is the cardiac output equation? - CORRECT ANSWERCO=HRxSV
what is cardiac output? - CORRECT ANSWERamount of blood pumped out in 1 minute
what is heart rate? - CORRECT ANSWER-beats (#) per minute
-60-100 BPM
what is stroke volume? - CORRECT ANSWERamount of blood pumped out with one contraction
what is preload? - CORRECT ANSWER-think VOLUME
-volume loaded into ventricles before contraction
what is preload affected by? - CORRECT ANSWER-venous return
-blood volume
, what is afterload? - CORRECT ANSWER-think RESISTANCE
-the amount of force needed to empty ventricles during contraction
-heart vs all arteries -> has to be STRONG
what is afterload affected by? - CORRECT ANSWER-systemic vascular resistance (SVR)
-BP
what is contractility? - CORRECT ANSWERstrength of cardiac contraction
what is contractility affected by? - CORRECT ANSWER-electrolytes (Ca+)
-myocardial stretch
-myocardial O2 supply
Patient is hypovolemic
which physiological principle is primarily affected?
Preload, Afterload, or Contractility - CORRECT ANSWERpreload
Patient has chronic inflammation and constriction of his blood vessels
which physiological principle is primarily affected?
Preload, Afterload, or Contractility - CORRECT ANSWERafterload
Patient is retaining fluid and has increased blood volume
which physiological principle is primarily affected?
Preload, Afterload, or Contractility - CORRECT ANSWERpreload
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