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. The caregiver is caring for a 10-year-old child with a history of frequent ear infections. The parents are concerned about their child’s hearing and speech development. What is the caregiver’s best response?

Correct answer: A

Rationale: The appropriate response for the caregiver is to address the parents' concerns by suggesting scheduling a hearing test and potentially referring the child to a speech therapist if necessary. This proactive approach can help evaluate and support the child's hearing and speech development effectively. Choice B is incorrect as assuming that most children outgrow ear infections and speech delays may overlook potential issues that need intervention. Choice C is wrong because waiting until adolescence to address concerns may lead to missed opportunities for early intervention. Choice D is incorrect as it dismisses the parents' valid concerns without offering a solution or further evaluation.

3. When should a mother introduce solid foods to her 4-month-old infant? The mother states that her mother suggests putting rice cereal in the baby's bottle. The nurse should instruct the mother to introduce solid foods when her child exhibits which behavior?

Correct answer: B

Rationale: Introducing solid foods when the child opens their mouth for food is important to ensure readiness for solids. This behavior indicates the infant's interest and readiness for new textures and flavors, promoting safe and successful introduction to solid foods. The other choices are not indicative of the infant's readiness for solid foods: A - stopping rooting is a reflex action, C - awakening for nighttime feedings is a normal behavior, and D - transitioning from a bottle to a cup is a developmental milestone unrelated to solid food introduction.

4. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarctation of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?

Correct answer: B

Rationale: The findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.

5. The healthcare provider is providing postoperative care to a 4-year-old child who underwent tonsillectomy. The provider notices that the child is frequently swallowing. What should the provider do first?

Correct answer: A

Rationale: Frequent swallowing after tonsillectomy may indicate bleeding, which requires immediate assessment and intervention. Checking the child’s throat for signs of bleeding is the priority to ensure timely identification and management of any potential bleeding complications.

Similar Questions

A 7-year-old child with leukemia is receiving chemotherapy. The mother asks the practical nurse (PN) how to manage the child's nausea at home. What advice should the PN provide?
A 16-year-old female student with a history of asthma controlled with both an oral antihistamine and an albuterol (ProAir) metered-dose inhaler (MDI) comes to the school nurse. The student complains that she cannot sleep at night, feels shaky, and her heart feels like it is 'beating a mile a minute.' Which information is most important for the nurse to obtain?
A 10-year-old girl who has had type 1 diabetes mellitus (DM) for the past two years tells the nurse that she would like to use a pump instead of insulin injections to manage her diabetes. Which assessment of the girl is most important for the nurse to obtain?
After observing a mother giving her 11-month-old ferrous sulfate followed by two ounces of orange juice, what should the nurse do next?
When observing a distraught mother scolding her 3-year-old son for wetting his pants in the hallway of a pediatric unit, what initial action should the nurse take?

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