In a double-blind procedure, the researchers know who is receiving the placebo, but the subjects do not know.
Indicate whether the statement is true or false
Q. 2All of the following are symptoms of anaphylactic shock EXCEPT:
a. paleness.
b. chest tightness.
c. difficulty breathing.
d. strong and slow pulse.
Q. 3Epidemiological studies prove cause and effect relationships.
Indicate whether the statement is true or false
Q. 4A reduction in blood supply to the heart and other tissues due to the body's reaction to a substance in food is called:
a. lactose intolerance.
b. food intolerance.
c. anaphylactic shock.
d. histamine shock.
Q. 5The hypothesis is a statement that will be tested by research.
Indicate whether the statement is true or false
Q. 6All of the following describe actions that histamine produces EXCEPT:
a. hives and itching.
b. a drop in blood pressure.
c. dilation of blood vessels.
d. a rise in blood pressure.
Q. 7Ellen and Jane are roommates who are taking a health and nutrition course at their university. After completing their health family tree projects they each discover that they both have genetic tendencies toward several chronic diseases. Ellen learned that she has a family history of colon cancer, osteoporosis, and hypertension. Jane learned that she has a family history of heart disease, type 2 diabetes, and obesity. The roommates discuss lifestyle changes that they can make to reduce their risks of developing these chronic diseases. Help Ellen and Jane make the right decisions for taking care of their health and nutrition by answering the following multiple-choice question(s). Jane and Ellen realize that they can reduce their risk of multiple chronic diseases by following recommendations for reducing what other chronic health problem?
A) Chronic inflammation and oxidative stress
B) Alzheimer's disease
C) Chronic obstructive pulmonary disease
D) Pellagra
Q. 8A substance released in allergic reactions that causes itching and hives is called:
a. histamine.
b. a beta blocker.
c. an allergen.
d. antihistamine.
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