During an anatomical class, Dr. Hales removes the heart of a frog and places it in a beaker of oxygenated Ringer's solution. He then instructs his health care trainees to observe how the muscles of the frog's heart continue to contract even without external stimulation. What property of the muscles of the heart is Dr. Hales asking his students to observe?
A. Tachycardia
B. Biorhythmicity
C. Bradycardia
D. Autorhythmicity
Answer: D
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Which of the following statements is true regarding oral care for the prevention of ventilator-associated pneumonia (VAP)? (Select all that apply.)
a. Tooth brushing is performed every 2 hours for the greatest effect. b. Implementing a comprehensive oral care program is an intervention for preventing VAP. c. Oral care protocols should include oral suctioning and brushing teeth. d. Protocols that include chlorhexidine gluconate have been effective in preventing VAP.
What is the first step the manager generally takes if a subordinate is having difficulty carrying out a delegated task?
A) Take over the task for the employee so he or she will not become demoralized B) Be available as a role model and resource in identifying alternative solutions C) Give the employee a written warning to be placed in his or her personnel file D) Give the employee a second delegated task so he or she has another opportunity to be successful
The school nurse's quick assessment of a student hurt in a fall on the playground determines that the child has serious injuries and needs to be transported to the hospital by ambulance
To lessen the child's fears, the nurse's best course of action would be to: a. read the child a story about a boy who went to the hospital in an ambulance b. tell the child not to be afraid and that the ambulance is needed to get to the hospital fast c. have a familiar school staff person ride in the ambulance with the injured child if permitted by ambulance personnel d. wait for a caregiver to come to the school and have him or her ride in the ambulance
The nurse is developing teaching materials on managing the side effects of oral iron salts for distribution in a free clinic. Which information should be included?
1. Take oral iron products with the largest meal of the day. 2. Take oral iron products just before bedtime. 3. Take oral iron products with plenty of fluid, such as milk, tea, or coffee. 4. Take oral iron products on an empty stomach unless nausea results.