N331 EKG Nursing Quiz
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An EKG machine is used by doctors to measure the rate at which the heart is beating and the position of the heart chambers. This machine is the best for noticing when the heart rhythm is out of the normal. Are you studying to be a nurse and need help revising the N331 EKG course? Take the test below and see how much you know.
- 1.Decreased oxygen levels at the tissue level is known as?
- A.
Arterial pressure
- B.
Hypoxemia
- C.
Hypoxia
- D.
Cyanosis
- 2.After having several Stokes-Adams attacks over 4 months, a client reluctantly agrees to implantation of a permanent pacemaker. Before discharge, the nurse reviews pacemaker care and safety guidelines with the client and spouse. Which safety precaution is appropriate for a client with a pacemaker?
- A.
Stay at least 2′ away from microwave ovens
- B.
Never engage in activities that require vigorous arm and shoulder movement
- C.
Avoid going through airport metal detectors
- D.
Avoid having magnetic resonance imaging (MRI).
- 3.Which location of the heart is normally the pacemaker site and usually has the fastest firing rate?
- A.
SA node
- B.
AV node
- C.
Bundle of His
- D.
Purkinje fibers
- 4.Atrial depolarization is manifested on an EKG as _______.
- A.
U waves
- B.
QRS complex
- C.
T waves
- D.
P waves
- 5.Which of the following blood vessels supplies most of the oxygen and nutrients to the SA node?
- A.
Brachioradialis
- B.
Right coronary artery
- C.
Left coronary artery
- D.
Inferior coronary sinus
- 6.Why is there a delay in conduction time from the SA node to the AV node?
- A.
Delays occur throughut all sections of the conduction system.
- B.
The Na/ K pumps are fewer in number near the SA node.
- C.
To enable the atria to completely empty its contents into the vetricles.
- D.
Primary ventricular blocks
- 7.True of False. EKGs can determine the contractility of the heart?
- A.
True
- B.
False
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