Requirement of iron during pregnancy is : September 2010
**Core Concept**
During pregnancy, the body's demand for iron increases significantly due to the expansion of maternal red blood cell mass, increased plasma volume, and the needs of the developing fetus. This heightened demand is essential for preventing iron deficiency anemia, a common complication in pregnant women.
**Why the Correct Answer is Right**
The requirement for iron during pregnancy is approximately 2-3 mg/day, which is 50% higher than the non-pregnant state. This increased demand is primarily due to the production of new red blood cells, which require iron for hemoglobin synthesis. The placenta also has a significant requirement for iron, which is transported from the maternal circulation. The fetus requires iron for its own growth and development.
**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect because the increased demand for iron during pregnancy is not just due to the expansion of maternal red blood cell mass, but also the needs of the developing fetus and the placenta.
**Option B:**
This option is incorrect because the recommended daily intake of iron during pregnancy is not 1 mg/day, but rather 2-3 mg/day.
**Option C:**
This option is incorrect because the requirement for iron during pregnancy is not 5 mg/day, but rather 2-3 mg/day.
**Option D:**
This option is incorrect because the requirement for iron during pregnancy is not 10 mg/day, but rather 2-3 mg/day.
**Clinical Pearl / High-Yield Fact**
It's essential to note that iron deficiency anemia is a common complication in pregnant women, and it can lead to premature labor, low birth weight, and increased risk of infections. Therefore, it's crucial to assess iron stores before pregnancy and ensure adequate iron supplementation during pregnancy.
**Correct Answer: D. 10 mg/day**