What serves as a tough mechanical layer that protects a client against bacteria, foreign material, other organisms, and chemicals?
1. monocytes
2. histamine
3. epidermis
4. homeostasis
ANS: 3
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The nurse is caring for a client who has smoked for many years and documents that "clubbing is present." Which technique is the best way for the nurse to determine the presence of clubbing?
1. Place two thumbs touching side-by-side. 2. Place two of the same fingers from each hand together. 3. Place two index fingers together tip-to-tip. 4. Place the hands out straight with the palm sides down.
Which of the following best describes the primary reason that Americans are concerned about health care?
a. Politicians are discussing how to improve health care. b. The media has provided mixed messages about the health care system. c. Our national health care costs keep increasing. d. The new health care system offers free services to Americans.
The nurse is attempting to control bleeding in a patient with a profusely bleeding scalp wound. The most effective initial treatment of bleeding is to:
a. elevate the head. b. apply direct pressure. c. apply an ice pack. d. apply indirect pressure.
The ratio of LD50 to ED50 is one indication of the relative safety of a drug for a particular use or effect and this is called the ___________ index.
Fill in the blank(s) with the appropriate word(s).