Author Question: When analyzing an electrocardiographic (ECG) rhythm strip of a patient with a regular heart rhythm, ... (Read 115 times)

tnt_battle · **on:** Jun 25, 2018

When analyzing an electrocardiographi c (ECG) rhythm strip of a patient with a regular heart rhythm, the nurse counts 30 small blocks from one R wave to the next. The nurse calculates the patient's heart rate as ____.

Fill in the blank with the appropriate word.

Question 2

A patient who is complaining of a racing heart and feeling anxious comes to the emergency department. The nurse places the patient on a heart monitor and obtains the following electrocardiographi c (ECG) tracing.

Which action should the nurse take next?
a. Prepare to perform electrical cardioversion.
b. Have the patient perform the Valsalva maneuver.
c. Obtain the patient's vital signs including oxygen saturation.
d. Prepare to give a -blocker medication to slow the heart rate.

fraziera112 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

ANS:
50
There are 1500 small blocks in a minute, and the nurse will divide 1500 by 30.

Answer to Question 2

ANS: C
The patient has sinus tachycardia, which may have multiple etiologies such as pain, dehydration, anxiety, and myocardial ischemia. Further assessment is needed before determining the treatment. Vagal stimulation or -blockade may be used after further assessment of the patient. Electrical cardioversion is used for some tachydysrhythmias, but would not be used for sinus tachycardia.