the nurse is assessing an infant with pyloric stenosis which pathophysiological mechanism is the most likely consequence of this infants clinical pict
Logo

Nursing Elites

HESI RN

HESI Pediatrics Practice Exam

1. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?

Correct answer: A

Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.

2. A 3-year-old with HIV infection is staying with a foster family who is caring for 3 other foster children in their home. When one of the children acquires pertussis, the foster mother calls the clinic and asks the nurse what she should do. Which action should the nurse take first?

Correct answer: D

Rationale: The priority action for the nurse is to review the immunization documentation of the child with HIV. This step ensures that the child has received the necessary vaccines to protect against pertussis and other preventable diseases. It is essential to verify the immunization status to provide appropriate care and prevent further transmission of infectious diseases within the foster home. Removing the child from the foster home (Choice A) may not be necessary if the child is adequately protected through immunization. Reporting the exposure to the health department (Choice B) is important but not the first action. Placing the child in reverse isolation (Choice C) is not indicated for pertussis exposure.

3. The caregiver is caring for a 3-year-old child with a diagnosis of gastroenteritis. The child has had several episodes of vomiting and diarrhea over the past 24 hours. What is the caregiver's priority assessment?

Correct answer: B

Rationale: The correct answer is B: Assess the child's hydration status. In children with gastroenteritis, assessing hydration status is crucial as they are at risk of dehydration due to vomiting and diarrhea. Monitoring hydration helps prevent complications and guides appropriate interventions to maintain the child's fluid balance. Monitoring the child's weight (Choice A) is not the priority in this situation compared to assessing hydration status. Evaluating nutritional intake (Choice C) is important but not the priority when the child is at risk of dehydration. Checking the child's temperature (Choice D) is relevant but not the priority over assessing hydration status in a child with gastroenteritis.

4. A child who weighs 25 kg is receiving IV ampicillin at a dose of 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?

Correct answer: A

Rationale: To calculate the correct dose for each administration, you first need to find the total daily dose: 300 mg/kg * 25 kg = 7500 mg/day. Since this total dose is divided into equally divided doses every 4 hours, there are 6 doses in 24 hours. Therefore, 7500 mg ÷ 6 doses = 1250 mg per dose. The nurse should administer 1250 mg every 4 hours, resulting in a total of 1875 mg for each dose in a 24-hour period. Choice A, 1875 mg, is the correct answer. Choice B, 625 mg, is incorrect as it does not consider the total daily dose and the frequency of administration. Choice C, 2000 mg, is incorrect as it is not the calculated dosage based on the given parameters. Choice D, 1500 mg, is also incorrect as it does not reflect the correct dosage calculation for each dose.

5. A child with sickle cell anemia is being treated for a vaso-occlusive crisis. Which intervention should the practical nurse (PN) implement?

Correct answer: B

Rationale: Encouraging increased fluid intake is crucial in managing vaso-occlusive crises in patients with sickle cell anemia. Dehydration can worsen these crises, so adequate hydration is essential to prevent complications and improve outcomes. Applying cold packs to painful areas may exacerbate vaso-occlusive crises by causing vasoconstriction. Administering high doses of vitamin C is not directly indicated for vaso-occlusive crises in sickle cell anemia. Providing low-calorie meals is not the priority during a vaso-occlusive crisis; maintaining adequate nutrition is important, but hydration takes precedence in this situation.

Similar Questions

The nurse is providing care for a 12-year-old child who was recently diagnosed with scoliosis. The child’s parent asks about treatment options. What is the nurse’s best response?
The mother of an 11-year-old boy with juvenile arthritis tells the nurse, 'I really don't want my son to become dependent on pain medication, so I only allow him to take it when he is really hurting.' Which information is most important for the nurse to provide this mother?
The practical nurse is caring for a child with suspected appendicitis. Which assessment finding should be reported to the healthcare provider immediately?
A 2-year-old child with heart failure (HF) is admitted for replacement of a graft for coarctation of the aorta. Prior to administering the next dose of digoxin (Lanoxin), the nurse obtains an apical heart rate of 128 bpm. What action should the nurse take?
A mother brings her 8-month-old baby boy to the clinic because he has been vomiting and having diarrhea for the last 3 days. Which assessment is most important for the nurse to make?

Access More Features

HESI RN Basic
$69.99/ 30 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

HESI RN Premium
$149.99/ 90 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

Other Courses