Which of the following is a characteristic of lead exposure and health?
a. Absorption of lead is higher on an empty stomach
b. Lead toxicity is most prevalent in children around the time of puberty
c. Lead-induced anemia is similar to the anemia of vitamin B12 deficiency
d. The symptoms of lead toxicity can be reversed by adding iron to the diet
Q. 2Which of the following is a characteristic of the appendix?
a. It ferments fiber b. It stores lymph cells
c. It slows down peristalsis d. It stores preformed stools
Q. 3Which of the following is NOT a characteristic of obese people?
a. Most obese people maintain their weight losses
b. Obese people often have feelings of rejection
c. In many cultures, obesity is viewed as a sign of robust health
d. Most weight-loss programs emphasize willpower and hard work to achieve long-term weight loss
Q. 4Which of the following is NOT among the common signs of mild lead toxicity?
a. Diarrhea b. Lethargy
c. Dermatitis d. Irritability
Q. 5What structure functions to prevent entrance of food into the trachea?
a. Tongue b. Epiglottis
c. Cardiac sphincter d. Trachea sphincter
Q. 6Aggressive treatment should be introduced in overweight people if they have which of the following risk factors?
a. Hypertension only b. Cigarette smoking only
c. High LDL and low HDL d. Impaired glucose tolerance only
Q. 7Which of the following is a feature of iron nutrition and behavior in children?
a. Iron-deficient children respond better to liquid preparations of Fe+3 than to tablets of Fe+2
b. Children who had iron-deficiency anemia as infants perform poorly even after iron status improves
c. Iron supplements can reverse the symptoms and restore normal behavior in children suffering from mild lead toxicity
d. The child's brain is not as responsive to iron as is the adult brain, which accounts for the more severe effects of deprivation
Q. 8What part of the GI tract prevents a person from choking while swallowing?
a. Mouth b. Epiglottis
c. Pyloric sphincter d. Upper esophageal sphincter
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