The patient has a pacemaker with one pacing spike seen on the ECG before every QRS complex. There is no change in the pacemaker rhythm over time, with rest or with activity. The nurse realizes the patient has what type of pacemaker?
1. asynchronous pacing
2. demand pacing
3. dual-chamber pacing
4. atrial single-chamber pacing
Correct Answer: 1
Asynchronous pacing delivers a pacing stimulus at a set rate regardless of intrinsic cardiac activity. A demand pacemaker spike varies with the heart rate. A dual-chamber pacer normally produces two pacing spikes, one before the P wave and one before the QRS. An atrial pacer would produce a spike, normally with a P wave that follows it prior to the QRS.
You might also like to view...
A 33-year-old female comes to the clinic to plan treatment and care after having a positive mammogram. After the physician discusses treatment options, the client tells the nurse that her husband must make the decision. What action should the nurse take?
1. Tell the client that she should make her own decision. 2. Ask the client what she thinks her husband's decision would be. 3. Call the client's spouse and ask for his decision. 4. Suggest that the client bring her spouse to the clinic so that the doctor can discuss treatment with them both.
Which of the following conditions is directly linked to smoking?
a. Chest muscle atrophy b. Coronary heart disease c. Diabetes d. Respiratory tuberculosis
As a woman enters the second stage of labor, her membranes spontaneously rupture. When this occurs, which of the following would you do next?
A) Test a sample of amniotic fluid for protein. B) Ask her to bear down with the next contraction. C) Elevate her hips to prevent cord prolapse. D) Assess fetal heart rate for fetal safety.
One of the five functions in the structural-functional theory of family is affective, which refers to the:
a. general mood of the family b. way feelings are addressed or not addressed in the family c. family meeting the needs for love and belonging of each member d. face or outer picture that the family shows to the outside world