Scientists conduct a study in which 100 adults with chronic diarrhea are divided into 2 groups of 50 people. One group is given a supply of yogurt that contains a certain kind of bacteria and the other group is given yogurt that is bacteria free. The study's participants and researchers do not know which group of subjects has the bacteria in the yogurt and which group does not. The scientists instruct the participants to eat the entire 8 ounces of yogurt once a day for a month and record the their bowel habits. This is an example of a(n) ________ study.
A. introspective
B. double-blind
C. hypothetical
D. uncontrolled
Answer: B
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A source of lead most likely includes _____
a. paint in newer homes only b. pipes only c. electronics only d. paint in newer homes and pipes e. cooking pans and sprays
Which of the following terms refers to the plant form of vitamin K?
a. Ergodione b. Menaquinone c. Tocopherone d. Phylloquinone e. Ergotamine
A dietitian is documenting a patient's nutrition outcome status as "possible progress toward goal.". This is best described by which term?
a. Resolved b. Improvement shown c. Unresolved d. No longer appropriate e. Not applicable
Nerissa's parents are concerned about her weight. At age 15, Nerissa is 5?5? tall, and 1 year ago she was 28 pounds overweight. She entered an exercise program, went on a calorie reduction diet, and lost 25 pounds. Now, it seems as if Nerissa is obsessed with diet and exercise. She has reduced her caloric intake to fewer than 1,000 calories per day, and exercises several times a day. Her
mother's efforts to talk her into eating more have been to no avail. The school nurse has asked Nerissa's mother to come in for a conference. The nurse asks her to explore some of the reasons for the initial overweight problem. What are some factors that can worsen an adolescent's weight problem?