Which of the following statements is true of cell membrane depolarization? Select all that apply
A) In the resting myocardial cell, there are more potassium ions outside than inside the cell.
B) In the depolarized state, the cell membrane is positively charged.
C) Excitability is the term used to describe the ability of a cell to depolarize in response to a given stimulus.
D) Pumps move sodium out of the cell and potassium into the cell.
C, D
You might also like to view...
A 15-year-old female client is noted to often sit alone in the activity room of the facility while watching television. She often begins to join in activities on the unit but then retreats back to her room
Which intervention is most appropriate in this situation? a. Encourage her to join in on a group activity and actively participate in the activity with her until she feels more comfortable on her own. b. Keep encouraging her to participate in the group activity. c. Offer her rewards, such as extended television privileges, for joining in a group activity. d. Offer her support as she tries to become more involved in activities.
Herbs, vitamins, and organic whole foods are what complementary and alternative medicine category-based therapies?
1. Biologically-based 2. Energy 3. Manipulative body-based 4. Mind-body
The nurse is cotherapist of a group. The guidelines followed by the therapists include focusing on
changing dysfunctional behavior and thinking patterns, selecting from the unit population the clients who can profit from the group, intervening promptly, and being directive. This type of group therapy can be identified as a. behavioral therapy. b. self-help. c. psychoeducational. d. cognitive-behavioral.
Noise in the critical care unit can have negative effects on the patient. Which of the following interventions assists in reducing noise levels in the critical care setting? (Select all that apply.)
a. Ask the family to bring in the patient's i-Pod or other device with favorite music. b. Invite the volunteer harpist to play on the unit on a regular basis. c. Remodel the unit to have two-patient rooms to facilitate nursing care. d. Remodel the unit to install acoustical ceiling tiles. e. Turn the volume of equipment alarms as low as they can be adjusted, and "off" if possible.