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Micronutrient Requirements during Pregnancy: Thiamin and Riboflavin

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Micronutrient Requirements during Pregnancy: Thiamin and Riboflavin

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Questions and Answers

What is the main reason for the increased thiamin requirement during pregnancy?

Increased energy utilization

Increased blood volume

Increased growth in maternal and fetal compartments

Both increased growth and energy utilization (correct)

Which of the following statements about choline during pregnancy is correct?

Choline is not depleted from maternal stores during pregnancy.

The AI for choline during pregnancy for women aged 14-18 years is higher than for women aged 19-50 years.

Extra dietary choline in rats increased spatial memory. (correct)

Choline is not important during embryogenesis and perinatal development.

Which of the following statements about vitamin C requirements during pregnancy is correct?

Subpopulations of pregnant women with certain risk factors may have increased vitamin C requirements. (correct)

The RDA for vitamin C during pregnancy is the same as for non-pregnant women.

Maternal plasma vitamin C levels increase with pregnancy progression.

The EAR for vitamin C during pregnancy is estimated to be 10 mg/day lower than for non-pregnant women.

Which of the following statements about vitamin D during pregnancy is correct?

Higher amounts of vitamin D might be necessary, especially when there is inadequate sunshine exposure. Signup and view all the answers

Which stage of gestation has the highest absorbed iron requirement per day?

Third trimester Signup and view all the answers

Which condition is associated with a two-fold increased risk of maternal death during pregnancy?

Moderate anemia (Hb < 80 g/L) Signup and view all the answers

According to the information provided, which statement is true regarding iron supplementation during pregnancy?

Iron supplementation is unnecessary if a woman has normal iron stores before pregnancy. Signup and view all the answers

What is associated with adverse pregnancy outcomes, such as small for gestational age (SGA) infants?

High hemoglobin levels at delivery Signup and view all the answers

Based on the studies mentioned, what is the incidence of iron deficiency anemia among pregnant and non-pregnant women in developed countries?

High Signup and view all the answers

Which of the following statements about vitamin E and pregnancy is true according to the provided text?

There is no evidence that maternal supplementation would prevent vitamin E deficiency symptoms in premature offspring. Signup and view all the answers

Which of the following statements about magnesium during pregnancy is true based on the provided information?

The decrease in serum magnesium levels during pregnancy is thought to be due to hemodilution. Signup and view all the answers

What is the primary indicator of folate adequacy during pregnancy?

Maintenance of maternal erythrocyte folate concentrations Signup and view all the answers

Which of the following statements about vitamin B6 during pregnancy is correct?

An additional 0.6 mg/day of vitamin B6 is needed to meet the requirement in the third trimester. Signup and view all the answers

Which of the following statements about vitamin B12 during pregnancy is correct?

The absorption of vitamin B12 may increase during pregnancy due to an increase in intrinsic factor-B12 receptors. Signup and view all the answers