A client is experiencing an alteration in heart rate. The nurse realizes this client is experiencing a disorder of which part of the heart?
1. Atrioventricular node
2. Bundle branches
3. Purkinje fibers
4. Sinoatrial node
4
The sinoatrial node is the dominant pacemaker of the heart. The sinoatrial node has an inherent rate of 60 to 100 bpm. The atrioventricular node has an intrinsic rate of 40 to 60 bpm. The impulse enters the right and left bundle branches and then enters the Purkinje fibers. Impulses at this level are at 15 to 40 times per minute.
You might also like to view...
The nurse administers erythromycin, a drug that is known to irritate mucosa in the stomach lining. When the patient reports abdominal discomfort after taking the medication, the nurse would classify this discomfort as what type of adverse effect?
A) Primary action B) Secondary action C) Hypersensitivity reaction D) Allergic reaction
A client is prescribed atenolol. After administering the drug, the nurse would be alert for which of the following? Select all that apply
A) Cough B) Hyperkalemia C) Bradycardia D) Dizziness E) Constipation
Which nursing theory is classified as a Grand Nursing Theory?
a. Polk's Theory of Resilience b. Mishel's Uncertainty in Illness Theory c. Orem's Self-Care Deficit Nursing Theory d. Im's Theory of Caucasians' Cancer Pain Experience
Which is the nurse evaluating when conducting the Romberg test?
1) Coordination 2) Cerebral function 3) Cerebellar function 4) Gait