The patient is in chronic junctional escape rhythm with no atrial activity noted. Studies have demonstrated normal AV node function. This patient may be a candidate for which type of pacing?
a. Atrial pacing
b. Ventricular pacing
c. Dual-chamber pacing
d. Transcutaneous pacing
A
Pacemakers may be used to stimulate the atrium, ventricle, or both chambers (dual-chamber pacemakers). Atrial pacing is used to mimic normal conduction and to produce atrial contraction, thus providing atrial kick. This is the case in the scenario provided. Ventricular pacing stimulates ventricular depolarization and is commonly used in emergency situations or when pacing is required infrequently. Dual-chamber pacing allows for stimulation of both atria and ventricles as needed to synchronize the chambers and mimic the normal cardiac cycle. However, with this patient, ventricular and AV function are normal.
You might also like to view...
Which action by the nurse is the final step in a complete assessment?
a. Forming diagnostic conclusions b. Documentation of findings c. Auscultation d. Palpation
Which finding is the patient with Peyronie disease most likely to report?
A) Inability to retract foreskin of penis B) A painful, bent erection C) Urinary meatus on the underside of the penis D) Inability to attain an erection
While caring for a preterm newborn receiving oxygen therapy, the nurse monitors the oxygen therapy duration closely based on the understanding that the newborn is at risk for which of the following?
A) Retinopathy of prematurity B) Metabolic acidosis C) Infection D) Cold stress
The nurse asks you to use a hair conditioner on a person's hair. To use the hair conditioner correctly, you must:
a. Follow the nurse's directions b. Follow the directions on the container c. Ask the person what to do d. Rinse thoroughly