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BIOD121 / BIOD 121 Module 6 ACTUAL EXAM
2026/2027 | Essentials in Nutrition | Verified
Questions and Answers 100% Correct | Grade A |
Portage Learning | Pass Guaranteed
Section 1: Pregnancy & Lactation Nutrition (Questions 1-15)
Question 1 A 28-year-old woman in her first trimester of pregnancy reports experiencing severe
nausea and vomiting, limiting her food intake to crackers and ginger ale. Which nutrient
deficiency poses the greatest immediate risk to embryonic neural tube development, and what
food source should be prioritized once she can tolerate solids?
A. Vitamin B12; fortified cereals B. Folate; dark leafy greens and fortified grains C. Iron; red
meat and spinach D. Calcium; dairy products and fortified alternatives
Correct Answer: B
Rationale: The neural tube closes between days 21-28 post-conception, often before pregnancy
recognition, making adequate folate status critical in early pregnancy. Folate (vitamin B9) is
essential for DNA synthesis, cell division, and neural crest migration. The RDA increases from
400 mcg to 600 mcg DFE daily during pregnancy. While the woman currently tolerates only
simple carbohydrates, once symptoms improve, she should prioritize folate-rich foods like dark
leafy greens (spinach, kale), legumes, and folic acid-fortified grains. Neural tube defects (spina
bifida, anencephaly) are strongly linked to folate deficiency in this critical window. Pre-
conception folate supplementation is ideal, but immediate attention is needed given her limited
intake.
Question 2 A pregnant client at 20 weeks gestation with a pre-pregnancy BMI of 22 asks about
appropriate weight gain. According to current guidelines, what is the recommended total weight
gain range for her pregnancy?
A. 15-25 pounds (6.8-11.3 kg) B. 25-35 pounds (11.5-16 kg) C. 28-40 pounds (12.5-18 kg) D.
11-20 pounds (5-9 kg)
Correct Answer: C
,2
Rationale: Current Institute of Medicine (IOM) guidelines recommend weight gain based on
pre-pregnancy BMI: underweight (BMI <18.5): 28-40 lbs; normal weight (BMI 18.5-24.9): 25-
35 lbs; overweight (BMI 25-29.9): 15-25 lbs; obese (BMI ≥30): 11-20 lbs. This client has a
normal pre-pregnancy BMI of 22, so the recommended range is 25-35 pounds (11.5-16 kg),
distributed as 1-5 lbs in the first trimester and approximately 0.8-1 lb/week thereafter. However,
upon review of current IOM guidelines, the correct range for normal BMI is 25-35 lbs. The
answer choices appear to have shifted ranges - option C (28-40 lbs) applies to underweight
women. For normal BMI, the correct answer is B (25-35 lbs). This appears to be an error in the
original question set. Based on standard guidelines: Correct Answer: B (25-35 pounds for
normal BMI).
Question 3 A 32-year-old pregnant woman at 30 weeks gestation has a hemoglobin of 10.2 g/dL.
Her physician suspects iron-deficiency anemia. Which combination of factors explains why iron
needs increase dramatically during pregnancy?
A. Decreased blood volume and reduced iron absorption B. Expanded blood volume, fetal iron
stores accumulation, and placenta development C. Increased calcium absorption competing with
iron D. Reduced erythropoietin production
Correct Answer: B
Rationale: Iron requirements increase significantly during pregnancy due to: (1) maternal blood
volume expansion (40-50% increase in plasma volume, requiring additional hemoglobin); (2)
fetal iron accumulation (approximately 300 mg stored primarily in the third trimester for
postnatal use); and (3) placental development (approximately 50-75 mg). The RDA increases
from 18 mg to 27 mg daily. Despite increased absorption efficiency (up to 30-40% in third
trimester vs. 5-10% normally), dietary intake often cannot meet needs, leading to anemia. This
client's hemoglobin of 10.2 g/dL (normal pregnancy >11 g/dL in 1st/3rd trimester, >10.5 g/dL in
2nd) confirms iron-deficiency anemia requiring supplementation and dietary counseling on heme
iron sources (meat, poultry, fish) consumed with vitamin C for enhanced absorption.
Question 4 A breastfeeding mother asks about her calorie needs compared to pre-pregnancy.
How many additional calories per day are recommended during the first 6 months of lactation?
A. No additional calories needed B. 330 additional calories per day C. 500 additional calories per
day D. 640 additional calories per day
Correct Answer: B
Rationale: During the first 6 months of lactation, the recommended energy increase is
approximately 330 calories per day above pre-pregnancy needs (500 calories total - 170 calories
, 3
mobilized from maternal fat stores). This supports milk production of approximately 25 oz (750
mL) daily containing 65-70 kcal/100 mL. After 6 months, when fat stores are depleted and milk
volume increases to approximately 30 oz (900 mL), the recommendation increases to 400
additional calories daily. The 500-calorie figure often cited represents total energy cost without
accounting for maternal fat mobilization. This graduated approach supports adequate milk supply
while promoting gradual return to pre-pregnancy weight, recognizing that individual needs vary
based on BMI, activity level, and breastfeeding frequency.
Question 5 A pregnant woman at 24 weeks gestation is diagnosed with gestational diabetes
mellitus (GDM). Which dietary modification is most important for managing blood glucose
levels while ensuring adequate fetal growth?
A. Eliminating all carbohydrate sources B. Distributing carbohydrate intake consistently across
meals and snacks with emphasis on complex carbohydrates C. Adopting a ketogenic diet D.
Skipping breakfast to reduce fasting glucose
Correct Answer: B
Rationale: GDM management requires carbohydrate consistency rather than restriction, as
carbohydrates remain the primary fetal energy source (glucose crosses the placenta via facilitated
diffusion). The approach involves: (1) distributing 175g minimum carbohydrate across 3 meals
and 2-3 snacks to prevent hyperglycemia spikes and hypoglycemia; (2) emphasizing complex
carbohydrates (whole grains, legumes, vegetables) with lower glycemic index for slower glucose
absorption; (3) pairing carbohydrates with protein/fat to blunt glycemic response; and (4)
carbohydrate counting (typically 30-45g per meal, 15-30g per snack). This strategy maintains
postprandial glucose <140 mg/dL at 1 hour or <120 mg/dL at 2 hours, reducing risks of
macrosomia, shoulder dystocia, and neonatal hypoglycemia while supporting appropriate fetal
growth.
Question 6 A woman in her third trimester reports frequent heartburn that interferes with eating.
Which physiological change during pregnancy contributes to this symptom, and what dietary
modification is most appropriate?
A. Decreased progesterone causing stomach acid reduction; increase acidic foods B. Relaxation
of the lower esophageal sphincter due to progesterone and mechanical pressure from the growing
uterus; small, frequent meals and avoiding trigger foods C. Increased gastric emptying speed;
consume large meals D. Gallbladder contraction; eliminate all fats
Correct Answer: B
BIOD121 / BIOD 121 Module 6 ACTUAL EXAM
2026/2027 | Essentials in Nutrition | Verified
Questions and Answers 100% Correct | Grade A |
Portage Learning | Pass Guaranteed
Section 1: Pregnancy & Lactation Nutrition (Questions 1-15)
Question 1 A 28-year-old woman in her first trimester of pregnancy reports experiencing severe
nausea and vomiting, limiting her food intake to crackers and ginger ale. Which nutrient
deficiency poses the greatest immediate risk to embryonic neural tube development, and what
food source should be prioritized once she can tolerate solids?
A. Vitamin B12; fortified cereals B. Folate; dark leafy greens and fortified grains C. Iron; red
meat and spinach D. Calcium; dairy products and fortified alternatives
Correct Answer: B
Rationale: The neural tube closes between days 21-28 post-conception, often before pregnancy
recognition, making adequate folate status critical in early pregnancy. Folate (vitamin B9) is
essential for DNA synthesis, cell division, and neural crest migration. The RDA increases from
400 mcg to 600 mcg DFE daily during pregnancy. While the woman currently tolerates only
simple carbohydrates, once symptoms improve, she should prioritize folate-rich foods like dark
leafy greens (spinach, kale), legumes, and folic acid-fortified grains. Neural tube defects (spina
bifida, anencephaly) are strongly linked to folate deficiency in this critical window. Pre-
conception folate supplementation is ideal, but immediate attention is needed given her limited
intake.
Question 2 A pregnant client at 20 weeks gestation with a pre-pregnancy BMI of 22 asks about
appropriate weight gain. According to current guidelines, what is the recommended total weight
gain range for her pregnancy?
A. 15-25 pounds (6.8-11.3 kg) B. 25-35 pounds (11.5-16 kg) C. 28-40 pounds (12.5-18 kg) D.
11-20 pounds (5-9 kg)
Correct Answer: C
,2
Rationale: Current Institute of Medicine (IOM) guidelines recommend weight gain based on
pre-pregnancy BMI: underweight (BMI <18.5): 28-40 lbs; normal weight (BMI 18.5-24.9): 25-
35 lbs; overweight (BMI 25-29.9): 15-25 lbs; obese (BMI ≥30): 11-20 lbs. This client has a
normal pre-pregnancy BMI of 22, so the recommended range is 25-35 pounds (11.5-16 kg),
distributed as 1-5 lbs in the first trimester and approximately 0.8-1 lb/week thereafter. However,
upon review of current IOM guidelines, the correct range for normal BMI is 25-35 lbs. The
answer choices appear to have shifted ranges - option C (28-40 lbs) applies to underweight
women. For normal BMI, the correct answer is B (25-35 lbs). This appears to be an error in the
original question set. Based on standard guidelines: Correct Answer: B (25-35 pounds for
normal BMI).
Question 3 A 32-year-old pregnant woman at 30 weeks gestation has a hemoglobin of 10.2 g/dL.
Her physician suspects iron-deficiency anemia. Which combination of factors explains why iron
needs increase dramatically during pregnancy?
A. Decreased blood volume and reduced iron absorption B. Expanded blood volume, fetal iron
stores accumulation, and placenta development C. Increased calcium absorption competing with
iron D. Reduced erythropoietin production
Correct Answer: B
Rationale: Iron requirements increase significantly during pregnancy due to: (1) maternal blood
volume expansion (40-50% increase in plasma volume, requiring additional hemoglobin); (2)
fetal iron accumulation (approximately 300 mg stored primarily in the third trimester for
postnatal use); and (3) placental development (approximately 50-75 mg). The RDA increases
from 18 mg to 27 mg daily. Despite increased absorption efficiency (up to 30-40% in third
trimester vs. 5-10% normally), dietary intake often cannot meet needs, leading to anemia. This
client's hemoglobin of 10.2 g/dL (normal pregnancy >11 g/dL in 1st/3rd trimester, >10.5 g/dL in
2nd) confirms iron-deficiency anemia requiring supplementation and dietary counseling on heme
iron sources (meat, poultry, fish) consumed with vitamin C for enhanced absorption.
Question 4 A breastfeeding mother asks about her calorie needs compared to pre-pregnancy.
How many additional calories per day are recommended during the first 6 months of lactation?
A. No additional calories needed B. 330 additional calories per day C. 500 additional calories per
day D. 640 additional calories per day
Correct Answer: B
Rationale: During the first 6 months of lactation, the recommended energy increase is
approximately 330 calories per day above pre-pregnancy needs (500 calories total - 170 calories
, 3
mobilized from maternal fat stores). This supports milk production of approximately 25 oz (750
mL) daily containing 65-70 kcal/100 mL. After 6 months, when fat stores are depleted and milk
volume increases to approximately 30 oz (900 mL), the recommendation increases to 400
additional calories daily. The 500-calorie figure often cited represents total energy cost without
accounting for maternal fat mobilization. This graduated approach supports adequate milk supply
while promoting gradual return to pre-pregnancy weight, recognizing that individual needs vary
based on BMI, activity level, and breastfeeding frequency.
Question 5 A pregnant woman at 24 weeks gestation is diagnosed with gestational diabetes
mellitus (GDM). Which dietary modification is most important for managing blood glucose
levels while ensuring adequate fetal growth?
A. Eliminating all carbohydrate sources B. Distributing carbohydrate intake consistently across
meals and snacks with emphasis on complex carbohydrates C. Adopting a ketogenic diet D.
Skipping breakfast to reduce fasting glucose
Correct Answer: B
Rationale: GDM management requires carbohydrate consistency rather than restriction, as
carbohydrates remain the primary fetal energy source (glucose crosses the placenta via facilitated
diffusion). The approach involves: (1) distributing 175g minimum carbohydrate across 3 meals
and 2-3 snacks to prevent hyperglycemia spikes and hypoglycemia; (2) emphasizing complex
carbohydrates (whole grains, legumes, vegetables) with lower glycemic index for slower glucose
absorption; (3) pairing carbohydrates with protein/fat to blunt glycemic response; and (4)
carbohydrate counting (typically 30-45g per meal, 15-30g per snack). This strategy maintains
postprandial glucose <140 mg/dL at 1 hour or <120 mg/dL at 2 hours, reducing risks of
macrosomia, shoulder dystocia, and neonatal hypoglycemia while supporting appropriate fetal
growth.
Question 6 A woman in her third trimester reports frequent heartburn that interferes with eating.
Which physiological change during pregnancy contributes to this symptom, and what dietary
modification is most appropriate?
A. Decreased progesterone causing stomach acid reduction; increase acidic foods B. Relaxation
of the lower esophageal sphincter due to progesterone and mechanical pressure from the growing
uterus; small, frequent meals and avoiding trigger foods C. Increased gastric emptying speed;
consume large meals D. Gallbladder contraction; eliminate all fats
Correct Answer: B
