In a double-blind study, who knows which participants are getting the treatment or placebo?
A. only the researchers
B. only the participants
C. both the researchers and participants
D. only an independent third party
Answer: D
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The number of new cases over the last year of high risk pregnancy at a WIC clinic is an example of:
a. prevalence b. incidence c. nutrition risk factors d. none of these
Sean is a college senior who has a family history of digestive disorders including heartburn, ulcers, and lactose intolerance. Throughout his college career Sean has experienced symptoms related to these disorders, but has not been medically treated for any digestive disorder. Today is Sean's 22nd birthday and his friends have decided to take him out for a few drinks. At the restaurant Sean and
his friends are surprised when the waitress brings them a large chocolate brownie with creamy milk chocolate frosting to help them celebrate Sean's birthday. They all enjoy the dessert and drinks, especially Sean, who ends up eating the majority of the brownie and drinks three alcoholic beverages. A few hours later Sean is feeling bloated, and has abdominal cramps. He is also experiencing a burning sensation in his chest. The burning that Sean is feeling is his chest is a symptom of which digestive disorder? A) Lactose intolerance B) Irritable bowel syndrome C) Stomach ulcers D) Heartburn
Vitamin C is mainly found in which types of foods?
A) Meat and fish B) Fats and oils C) Grains D) Fruits and vegetables E) Dairy and dairy alternatives
The rate of Americans with diabetes mellitus has almost doubled in the past decade
Indicate whether the statement is true or false