A nursing student asks a nurse how digoxin causes dysrhythmias. The nurse correctly states that digoxin:
a. reduces automaticity in the AV node.
b. increases automaticity in the Purkinje fi-bers.
c. increases automaticity in the SA node.
d. speeds up AV conduction.
B
Digoxin increases automaticity in the Purkinje fibers, which contributes to dysrhythmias caused by digoxin. Decreased automaticity in the AV node is a desired effect of digoxin. Digoxin does not increase automaticity in the SA node. It does not increase AV node conduction.
You might also like to view...
The nursing student learns which facts about religion and spirituality? (Select all that apply.)
a. Spirituality focuses on the meaning of life to people. b. Religion and spirituality are mutually exclusive. c. Religion implies an organized way of worship. d. Religion provides the structure by which to understand spirituality. e. Spirituality is an individual practice that does not include others.
The nurse is providing an education session regarding mobility for a client who has experienced a myocardial infarction 10 days ago
While reviewing for this educational session, the nurse should recognize that one of the following teaching points listed below would not be appropriate to discuss with this client? A) The reduced circulation of an individual who has been on bed rest can cause blood clots to form in the legs. B) The individual's heart, which has been consistently lying down, actually has to work harder than when standing up. C) An individual who has been on bed rest has a faster heart beat, and as a result, there can be an increase in his blood pressure. D) An individual staying in bed can experience excess fluid volume that may result in pitting edema of the lower extremities.
A client is brought to the emergency department with injuries sustained from a motor vehicle accident. The nurse will conduct which of the following types of health assessments?
1. Focused 2. Comprehensive 3. Emergency 4. Follow-up
The nurse is caring for a child with Legg–Calvé–Perthes disease. Which clinical manifestation would likely have been seen in this child?
A) Difficulty standing and walking B) Inflammation of the joints C) Poor posture and malformed vertebrae D) Pain in the groin and a limp