Which drug action is most likely to lower blood pressure?
a. Increasing the effectiveness of heart pumping
b. Relaxing (dilating) blood vessel smooth muscle
c. Increasing the excretion of urine from the body
d. Retaining the body's concentration of potassium
B
The most common physiologic change that increases blood pressure is narrowing or constricting of the small arteries. Drugs that cause blood vessels to relax or dilate are most effective at lo-wering blood pressure.
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The community-health nurse has received a referral for a new patient who resides in a high-crime area. What is the most important request that the nurse should make of the agency to best ensure safety?
A) An early morning or late afternoon appointment B) An assigned parking space in the neighborhood C) A colleague to accompany the nurse on the visit D) Someone to wait in the car while the nurse makes the visit
Clients with potassium restrictions may be instructed to do all the following procedures except:
1. Cook vegetables in large amounts of water, which is then discarded 2. Use salt substitutes only after cooking 3. Drink carbonated beverages, cranberry juice, or lemonade 4. Use any of the permitted foods only in the form specified
As part of a community-wide flu vaccination program for older adults, the nurse is assisting at a vaccination clinic. Which of the following questions should the nurse ask before administering the vaccine?
a. Do you have any food allergies? b. Have you had the pneumococcal vaccine? c. Have you had the flu in the past 5 years? d. Do you have Medicare?
A nurse recalls the mast cell, a major activator of inflammation, initiates the inflammatory re-sponse through the process of:
a. chemotaxis. b. endocytosis. c. degranulation. d. opsonization.