Answer to Question 1
ANS: A
Orange juice, which is high in vitamin C, increases the absorption of iron in the stomach. Antacids interfere with iron absorption. Nausea and vomiting should be reported since they are signs of toxicity. Food slows absorption but is sometimes recommended to reduce gastrointestinal upset.
Answer to Question 2
ANS: D
Symptoms of folic acid deficiency usually are not noted until 2 to 4 months after folic acid storage is depleted. Synthetic folate is more stable than food folate with greater bioavailability. Megadoses are not recommended. One-third of folic acid is stored in the liver with the rest stored in tissues.