The nurse caring for a client with a poorly functioning SA node knows that which of the following will take over in the conduction pathway to maintain adequate heart rate and perfusion?
a. Purkinje Fibers
b. Bundle of His
c. Right and Left Bundle Branches
d. AV node
d. AV node
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An older adult client is being seen for the first time at the outpatient geriatric clinic. As a com-ponent of the nursing admission history, the nurse inquires about the use of herbs and other sup-plements
The basis for this inquiry is that such herbal therapy: a. may interact with prescription medica-tions. b. is hazardous when used by older adults. c. replaces the need for prescription medica-tions. d. causes excessive sedation in older adults.
Identify the role of helper T-cell lymphocytes in regulating the activity of the immune system.
A. Helper T-cell lymphocytes are scavenger cells that engulf and digest infectious organisms and foreign substances. B. The function of helper T-cells is to recognize the foreign antigens presented to them by macrophages and other antigen-presenting cells. C. Helper T-cell lymphocytes function as antigen-presenting cells. D. All of these are correct.
When taking postoperative vital signs, you should
A. monitor the temperature every 15 minutes. B. count the pulse and respiration for one full minute. C. discontinue monitoring one hour after the patient returns. D. discontinue monitoring when you think the patient is stable.
Which of the following is a true statement regarding hearing loss?
A) Otosclerosis is the most common cause of hearing loss. B) Loud noise does not cause hearing loss. C) Tinnitus is ringing in the ears. D) It affects about 90% of people over 60 years of age.