Final answer:
The recommended weight gain during pregnancy by the Institute of Medicine depends on the woman's prepregnancy BMI, so the specific weight gain for Rita would depend on her current weight and BMI.
Step-by-step explanation:
The Institute of Medicine (IOM) provides guidelines for pregnancy weight gain based on a woman's prepregnancy body mass index (BMI). According to these guidelines, weight gain during pregnancy should be:
- 25-35 pounds for women of normal weight,
- 28-40 pounds for underweight women,
- 15-25 pounds for overweight women, and
- 11-20 pounds for obese women.
Therefore, the recommended weight gain for Rita during her pregnancy would depend on her current weight and prepregnancy BMI. Without knowing Rita's prepregnancy BMI, the exact recommendation cannot be determined.