In a t-test situation, confidence intervals are constructed around:
a. The difference between two means
b. Each of the two means
c. The pooled variance
d. The two separate variances
A
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According to the American Academy of Allergy, Asthma, & Immunology, what percentage of the general population have a latex allergy?
a. 1% c. 10% b. 5% d. 15%
A pregnant woman tells the nurse that she takes daily vitamin supplements. Since learning of her pregnancy, she has increased her vitamin A supplement to 1200 RAEs per day. The nurse should
a. confirm that this dose is appropriate during pregnancy. b. encourage the patient to increase the dose to 1500 RAEs to promote the devel-opment of the central nervous system of the fetus. c. recommend that the patient reduce the dose to less than 700 RAEs, because high-er doses may be teratogenic. d. inform the patient that because vitamin A is water soluble, large doses are needed to maintain the vitamin in the system.
All of the following are risk factors for lead poisoning except
1. Being an African American. 2. Having a brother, sister, or playmate being treated for lead poisoning. 3. Living near an active lead smelter, battery recycling plant, or other industry likely to release lead. 4. Living or regularly visiting a day care center, preschool, or other house built before 1960. 5. Living with an adult whose job, hobby, or use of ethnic remedies involves lead.
The community health nurse is providing information to elderly clients in the community regarding health tests and screening. Which of the following would be recommended for these clients? (Select those that apply.)
1. Annual hearing screen 2. Annual total cholesterol and HDL protein measurement 3. Annual vision screen 4. Annual flu vaccine 5. Annual pneumococcal vaccine after age 65