356
Copyright © 2011 by Wolters Kluwer Health | Lippincott Williams & Wilkins. Skill Checklists for Taylor's Clinical Nursing Skills:
SKILL 16-8
Using an External (Transcutaneous)
Pacemaker (Continued)
Comments
- Apply the anterior pacing electrode (marked ‘Front’),
which has two protective strips—one covering the gelled
area and one covering the outer rim. Expose the gelled
area and apply it to the skin in the anterior position, to the
left side of the sternum in the usual V 2 to V 5 position, cen-
tered close to the point of maximal cardiac impulse. Move
this electrode around to get the best waveform. Then
expose the electrode’s outer rim and firmly press it to the
skin. - Prepare to pace the heart. After making sure the energy
output in milliamperes (mA) is on 0, connect the electrode
cable to the monitor output cable. - Check the waveform, looking for a tall QRS complex in
lead II. - Check the selector switch to ‘Pacer on.’ Select synchronous
(demand) or asynchronous (fixed-rate or nondemand)
mode, per medical orders. Tell the patient he or she may
feel a thumping or twitching sensation. Reassure the
patient you will provide medication if the discomfort is
intolerable. - Set the pacing rate dial to 10 to 20 beats higher than the
intrinsic rhythm. Look for pacer artifact or spikes, which
will appear as you increase the rate. If the patient does not
have an intrinsic rhythm, set the rate at 80 beats/minute
(Craig, 2005). - Set the pacing current output (in milliamperes [mA]). For
patients with bradycardia, start with the minimal setting
and slowly increase the amount of energy delivered to the
heart by adjusting the ‘Output’ mA dial. Do this until
electrical capture is achieved: you will see a pacer spike
followed by a widened QRS complex and a tall broad T
wave that resembles a premature ventricular contraction. - Increase output by 2 mA or 10%. Do not go higher
because of the increased risk of discomfort to the patient. - Assess for mechanical capture: Presence of a pulse and
signs of improved cardiac output (increased blood
pressure, improved level of consciousness, improved body
temperature). - For patients with asystole, start with the full output. If
capture occurs, slowly decrease the output until capture is
lost, then add 2 mA or 10% more. - Secure the pacing leads and cable to the patient’s body.
ExcellentSatisfactoryNeeds Practice