Question

Case Study 1 Answers should be typed, double-spaced, 12 pt font, turned in at the start of class on the day it is due. Pregnancy Alexa, 22 years old, just found out she is 10 weeks pregnant. She is 5'7" and in good health. Before becoming pregnant, she weighed 135# and now weighs 145#. 1. Calculate her pre-pregnancy BMI and recommend the amount of weight she should gain during her pregnancy. Interpret her rate of weight gain so far. How is her weight gain? Provide evidence to support your response. Show your work 2. Calculate Alexa's non-pregnant protein needs using the RDA. How much protein does she now need per day to support her pregnancy? How much extra food would this be? Hint: Use the Exchange System to estimate the amount of additional food Alexa needs. Provide evidence to support your response. 3. Describe changes in the RDA for calcium occur to meet the nutritional requirements of pregnancy. What is pre-pregnancy RDA for calcium? What is pregnancy RDA fir calcium? Describe and explain the difference. 4. What changes in iron RDA occur to meet the nutritional requirements of pregnancy? 5. Alexa is resistant to gaining any more weight during her pregnancy claiming. "My body will just convert my fat to energy for my baby." Is she correct? Support your answer with evidence and examples. 6. How many additional calories per day should Alexa consume to support her pregnancy at 10 weeks? Hint: There are two ways to present this information. 7. Design a snack that would meet her pregnancy needs (additional energy, iron, protein...) during her 3 trimester. How much food would be needed to provide the additional energy and nutrients needed? Hint: Use the Exchange System to estimate the amount of food that would be needed. Provide evidence to support your selections. 8. Considering the answers to the above questions, is the statement "I can eat as much as I want during pregnancy because I'm eating for two accurate? Support your answer with evidence.

Answer 1

Pregnancy is the state in which additional requirements of all the necessary nutrients are increased, pregnancy is the state in which a pregnant woman gains at least 11 to 15 kgs of body weight,

In the mentioned questions Alexa is 22 years with 10 weeks pregnant, and her body weight was 135 pounds before the pregnancy and 145 pounds after the pregnancy.

Ans 1. Pre-pregnancy BMI.

WEIGHT= 135 POUNDS = 61.2 kgs.

HEIGHT= 5'7" = 1.7 metres.

Formula to calculate BMI= KG / M²

Where kg is weight and metre is height.

BMI= 61.2 KG / 1.7* 1.7.

= 61.2 / 2.89

= 21.17.

~ 21.

BMI before pregnancy is considered normal as the normal range of BMI is 18.5 to 24.5.

It is normal to gain 11 kg to 15 kg of body weight during pregnancy, during the first trimester of pregnancy 0.5 to 2.5 kg of weight gain is considered normal,

The second trimester onwards there is 0.5 kg of weight gain is seen every week till full-term gestation.

As at the end of 10th weeks of pregnancy Alexa has gained almost 4 kgs of body weight which is not normal, she should balance her diet during the first trimester as the foetus in the womb is very small during the first trimester and the requirement of food intake is not that high.

She should perform a few exercises to control weight gain during the first trimester of pregnancy.

2. Answer.

Protein needs are increased during pregnancy also the amount of protein keeps on increasing during each trimester of pregnancy,

In Non-pregnant state, the amount of protein required is 0.8 gram per kg body weight.

RDA of protein in non-pregnant state is=. gm/day per kg body weight.

RDA in non pregnancy= weight in kg* 0.8 grams / day.

Alexa weight in non-pregnant state was= 61.2 kg.

= 61.2 kgs *0.8 gm/ day

= 48.8 gms protein/day in non-pregnant state.

during pregnancy, the amount of protein needed is 1.2 gram per kg body weight per day in early 16 weeks and 1.52 grams per kg body weight during term gestation is needed.

As Alexa's weight is 65 kg during 1st trimester.

RDA = 65 kgs* 1.2 grams / kg body weight per day

RDA= 78.0 gms protein/ day in 1st trimester of pregnancy is needed.

Protein needs during non-pregnant state were 48 grams.

Protein needs during pregnancy stage for 78 grams.

To calculate the difference= 78- 48 = 30 grams extra protein is needed by Alexa during the first trimester of pregnancy.

3. Answer.

calcium is one of the important nutrients needed during pregnancy for the growth and development of the foetus in the womb, it also helps in preparation of breast for milk and preparation of uterus during pregnancy.

The recommended daily allowance of calcium in the non-pregnant state is 1000 mg per day,

Its a requirement is increased during pregnancy and it is up to 1300 mg per day it shouldn't exceed more than 2500 mg per day as it may cause several complications.

For proper functioning of muscles, bones, & teeth, a daily allowance of calcium is 1000 mg per day and its demand is increased in pregnancy up to 1300 mg/ day as the brain, bones, and muscles start developing in the womb.

4. Answer

Iron is also one of the essential nutrients needed in human body, the need of iron during pregnancy is due to the supply of oxygen to the lungs and another part of the foetus, it helps in the formation of RBC, it helps in maintaining proper circulation in the body of the foetus is the pregnant mother,

Recommended daily allowance of iron in a non-pregnant lady is 17 to 19 milligram per day, for the supply of oxygen to the various parts of the body, to restore the loss happened during menstruation, it helps to prevent anaemia.

the recommended daily allowance of iron in pregnancy is

27 mg per day, pregnancy is the state in which the demand for almost all the nutrients is increased during it.