For each description in questions 6-10, choose the tumor antigen or gene (A-J) that is the best match
A. AFP
B. Bcr/Abl
C. CA-125
D. CD20
E. CEA
F. EBNA
G. MAGE
H. p53
I. PSA
J. Ras
Differentiation antigen for B cells
ANS: D. Differentiation antigens are molecules expressed on the normal cells from which the tumor was derived and are specific for particular cell differentiation stages or lineages. They are important in identifying the tissue of origin of tumors. CD20 is a differentiation antigen for B cell lymphomas, and PSA is a differentiation antigen for prostate carcinomas.
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A child has been experiencing hypoglycemic episodes. "How does the body know when to secrete insulin and when to stop secreting it?" The best response by the nurse, explaining the physiologic background, would be:
A) "The body knows that if the blood glucose level falls, it will inhibit insulin secretion and release glycogen to release glucose from the liver." B) "It's just a big guessing game; first we give sugar like orange juice, and then we withhold the carbohydrates if the blood glucose level is too high." C) "Your pituitary gland in the brain is the 'master gland,' and it controls and regulates all the hormones." D) "Once the child starts getting confused, the brain will send a message to the pancreas to stop producing insulin."
What name is given to a test that demonstrates a quality physical education program for children?
A. 45 second push up test B. 30 seconds to fame C. 60 second one ball test D. 90 seconds maximal stress test
An individual consumes approximately 2,100 calories per day. In order to maintain fat intake at 20% of total caloric intake, how many grams of fat should be allowed?
a. 40 b. 43 c. 47 d. 50
There are several different models that have proven useful in the prevention of disease
Indicate whether the statement is true or false.