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abutler5
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Each normal heartbeat is initiated by which of the following?
SA node in the wall of the R. Atrium
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During on cardiac Cycle, which of the following occurs?
Atria contract first, followed by the ventricles
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Which of the following detects changes in blood pressure?
Pressoreceptors in the carotid and aortic sinuses
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Epinepherine increases blood pressure because it does what?
increases HR and force of cardiac contraction
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When blood pressure decreases, the kidneys help raise it by secreting which of the following?
Renin
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Which of the following prevents the backflow of blood in the veins?
Valves
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A patient has a bilateral mastectomy, so the nurse obtains BP readings from a patients legs. The pt's baseline in arms was 112/78. What does the nurse expect it to be when taking BP in legs?
- 10 mmHg higher in the leg
- 122/84
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The nurse obtains a lower blood pressure in the pt's l. arm than the right. Which of the following arms should the nurse use, for ongoing BP measurement?
Right Arm
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The nurse checking pts bp for orthostatics, patient asks why is there such a difference between bp laying and sitting. Nurses best response?
BP usually compensates for a change in position by going down by about 15 mmHg so this is normal.
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