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Regis NU 665 Exam 2: Primary Care of the Adult
2026/2027 – Verified Questions & Answers with
Detailed Rationales | Grade A Prep Guide
1. A 10-month-old child has been diagnosed with gastroenteritis. He attends a child-care
facility. What is the most likely cause of his illness?
A. C. difficile
B. Rotavirus
C. Norovirus
D. Cryptosporidium
Correct Answer: C
Rationale: Norovirus is the most common cause of gastroenteritis in children attending
child-care facilities, causing acute onset of vomiting and diarrhea.
2. In a healthy 8-month-old with diarrhea but no dehydration, what would be the most
appropriate advice to give parents?
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A. Encourage full-strength formula for 12 hours
B. Give oral rehydration solution (ORS) for 12 hours
C. Give only fluids until stools return to normal
D. Give bananas and cereal, as tolerated
Correct Answer: D
Rationale: Starvation depresses digestive function and prolongs diarrhea. ORS is only
given if dehydration is present. Bananas and cereal (the BRAT diet) are easily tolerated
and provide nutrition without worsening diarrhea.
3. When evaluating a child with abdominal pain, what symptom would lead to a likely
organic etiology?
A. Night waking
B. Pallor
C. Suprapubic pain
D. Sweating
Correct Answer: A
Rationale: Nighttime awakening with abdominal pain usually does not occur with
functional disorders and suggests an organic etiology such as peptic ulcer disease or
gastroesophageal reflux.
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4. Vomiting in infancy has a long list of differential diagnoses. Which accompanying
symptom would most likely point to pyloric stenosis?
A. Diarrhea
B. Appropriate growth
C. Acts hungry after vomiting
D. Sausage-shaped mass in abdomen
Correct Answer: C
Rationale: In pyloric stenosis, projectile vomiting usually starts between 1 and 2 months
of age, and the infant will be very hungry after vomiting. Other symptoms include
constipation, fussiness, and weight loss.
5. Mrs. Doyle is upset. Two-month-old John's frequent vomiting has her convinced that
"something is seriously wrong." Which of the following is most suggestive of GER?
A. He's gained 5 ounces this month
B. He has a slight wheeze today
C. He eats hungrily after vomiting
D. He drinks 7-8 ounces every 3-4 hours
Correct Answer: D
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Rationale: John is being overfed, which predisposes infants to GER. A more appropriate
intake for a 2-month-old is 4-5 ounces every 3-4 hours.
6. Which of the following findings could be expected to occur in a baby with
intussusception?
A. Inconsolable screaming
B. Olive-shaped mass
C. Left-to-right peristaltic waves
D. Weight loss
Correct Answer: A
Rationale: Intussusception causes acute, severe, colicky abdominal pain, leading to
inconsolable screaming. Olive-shaped mass and left-to-right peristaltic waves are
associated with pyloric stenosis.
7. Which of the following may occur with suspected appendicitis?
A. Pain is not relieved with ambulation
B. Young children appear very ill in the early phase
C. Fever is 102-103°F
D. Leukopenia with left shift is present
Regis NU 665 Exam 2: Primary Care of the Adult
2026/2027 – Verified Questions & Answers with
Detailed Rationales | Grade A Prep Guide
1. A 10-month-old child has been diagnosed with gastroenteritis. He attends a child-care
facility. What is the most likely cause of his illness?
A. C. difficile
B. Rotavirus
C. Norovirus
D. Cryptosporidium
Correct Answer: C
Rationale: Norovirus is the most common cause of gastroenteritis in children attending
child-care facilities, causing acute onset of vomiting and diarrhea.
2. In a healthy 8-month-old with diarrhea but no dehydration, what would be the most
appropriate advice to give parents?
,2|Page
A. Encourage full-strength formula for 12 hours
B. Give oral rehydration solution (ORS) for 12 hours
C. Give only fluids until stools return to normal
D. Give bananas and cereal, as tolerated
Correct Answer: D
Rationale: Starvation depresses digestive function and prolongs diarrhea. ORS is only
given if dehydration is present. Bananas and cereal (the BRAT diet) are easily tolerated
and provide nutrition without worsening diarrhea.
3. When evaluating a child with abdominal pain, what symptom would lead to a likely
organic etiology?
A. Night waking
B. Pallor
C. Suprapubic pain
D. Sweating
Correct Answer: A
Rationale: Nighttime awakening with abdominal pain usually does not occur with
functional disorders and suggests an organic etiology such as peptic ulcer disease or
gastroesophageal reflux.
,3|Page
4. Vomiting in infancy has a long list of differential diagnoses. Which accompanying
symptom would most likely point to pyloric stenosis?
A. Diarrhea
B. Appropriate growth
C. Acts hungry after vomiting
D. Sausage-shaped mass in abdomen
Correct Answer: C
Rationale: In pyloric stenosis, projectile vomiting usually starts between 1 and 2 months
of age, and the infant will be very hungry after vomiting. Other symptoms include
constipation, fussiness, and weight loss.
5. Mrs. Doyle is upset. Two-month-old John's frequent vomiting has her convinced that
"something is seriously wrong." Which of the following is most suggestive of GER?
A. He's gained 5 ounces this month
B. He has a slight wheeze today
C. He eats hungrily after vomiting
D. He drinks 7-8 ounces every 3-4 hours
Correct Answer: D
, 4|Page
Rationale: John is being overfed, which predisposes infants to GER. A more appropriate
intake for a 2-month-old is 4-5 ounces every 3-4 hours.
6. Which of the following findings could be expected to occur in a baby with
intussusception?
A. Inconsolable screaming
B. Olive-shaped mass
C. Left-to-right peristaltic waves
D. Weight loss
Correct Answer: A
Rationale: Intussusception causes acute, severe, colicky abdominal pain, leading to
inconsolable screaming. Olive-shaped mass and left-to-right peristaltic waves are
associated with pyloric stenosis.
7. Which of the following may occur with suspected appendicitis?
A. Pain is not relieved with ambulation
B. Young children appear very ill in the early phase
C. Fever is 102-103°F
D. Leukopenia with left shift is present
