A patient's cardiac monitor shows a pattern of undulations of varying contours and amplitude with no measurable ECG pattern. The patient is unconscious and pulseless. Which action should the nurse take first?
a. Perform immediate defibrillation.
b. Give epinephrine (Adrenalin) IV.
c. Prepare for endotracheal intubation.
d. Give ventilations with a bag-valve-mask device.
Question 2Which laboratory result for a patient with multifocal premature ventricular contractions (PVCs) is most important for the nurse to communicate to the health care provider?
a. Blood glucose 243 mg/dL
b. Serum chloride 92 mEq/L
c. Serum sodium 134 mEq/L
d. Serum potassium 2.9 mEq/L
Question 3A patient has ST segment changes that support an acute inferior wall myocardial infarction. Which lead would be best for monitoring the patient?
a. I
b. II
c. V2
d. V6
Question 4When analyzing the rhythm of a patient's electrocardiogram (ECG), the nurse will need to investigate further upon finding a(n)
a. isoelectric ST segment.
b. P-R interval of 0.18 second.
c. Q-T interval of 0.38 second.
d. QRS interval of 0.14 second.
Question 5A 20-year-old has a mandatory electrocardiogram (ECG) before participating on a college soccer team and is found to have sinus bradycardia, rate 52. Blood pressure (BP) is 114/54, and the student denies any health problems.
What action by the nurse is most appropriate?
a. Allow the student to participate on the soccer team.
b. Refer the student to a cardiologist for further diagnostic testing.
c. Tell the student to stop playing immediately if any dyspnea occurs.
d. Obtain more detailed information about the student's family health history.
Question 6Which action should the nurse perform when preparing a patient with supraventricular tachycardia for cardioversion who is alert and has a blood pressure of 110/66 mm Hg?
a. Turn the synchronizer switch to the off position.
b. Give a sedative before cardioversion is implemented.
c. Set the defibrillator/cardioverter energy to 360 joules.
d. Provide assisted ventilations with a bag-valve-mask device.
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