What is the major effect of a calcium channel blocker such as verapamil on cardiac contractions?

a. Increases the rate of cardiac contractions
b. Decreases the strength of cardiac contractions
c. Stabilizes the rhythm of cardiac contractions
d. Stabilizes the vasodilation during cardiac contractions


Answer: b. Decreases the strength of cardiac contractions

Nursing

You might also like to view...

Betty Neuman developed the nursing theory that promotes nursing interventions to assist individuals in reaching and maintaining the highest level of wellness possible. What is this theory known as?

a. Adaptation model b. Interpersonal model c. Systems model d. Self-care deficit model

Nursing

A gerontological nurse is aware of the high incidence and prevalence of urinary tract infections (UTIs) among older adults. Consequently, the nurse is implementing plans of care that attempt to reduce this risk

Which of the following actions present the greatest risk of UTIs for older adults? A) The use of antibiotics for respiratory infections B) The use of indwelling urinary catheters C) Restricting older adults' mobility and levels of activity D) Restricting fluid in older adults with congestive heart failure (CHF) or renal disease

Nursing

The nurse uses the acronym MAWDS to teach a patient about self-care management for heart failure. Which instruction would this method contain?

1. "You should return to the clinic for monthly follow-up.". 2. "Check your weight daily.". 3. "Elevate the feet for twenty minutes twice daily.". 4. "Avoid large crowds.".

Nursing

Gordon's Functional Health Patterns is a good assessment tool because it

a. determines what to assess. d. guides data collection. b. provides structure for organizing data. e. uses a head-to-toe format. c. uses a body systems format. f. aids in client problem identification.

Nursing