Author Question: A nursing student asks a nurse how digoxin causes dysrhythmias. The nurse correctly states that ... (Read 34 times)

123654777 · **on:** Jul 23, 2018

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.

Question 2

A 3-year-old child who has asthma is in the clinic for a well-child checkup.

The nurse notes that the child is up-to-date for the DTaP, Hepatitis A, Hepatitis B, and the MMR vaccines but has only had one each of the Hib, the Rotavirus, and the PCV13 vaccines. Which vaccine(s) will the nurse anticipate administering to this child? a. Hib and Rotavirus vaccines
b. PCV13
c. PCV13 and Hib
d. Rotavirus

Ashley I · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

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.

Answer to Question 2

B
The PCV13 should be given to all children under the age of 2 years and to all healthy children between ages 2 and 5 years, especially those who have conditions such as chronic lung disease that put them at high risk of serious pneumococcal disease. The Hib vaccine is only given up to age 15 months. The Rotavirus vaccine is not given after 32 weeks of age.