HESI RN
HESI Practice Test Pediatrics
1. The practical nurse is reinforcing information about Lyme disease prevention with a client who is preparing for a camping trip with family. Which statement by the client informs the nurse that the client understands the instruction?
- A. I'll make sure my son wears dark clothing on his hike.
- B. I'll get a prescription for amoxicillin to take with us.
- C. We should all get the Lyme disease vaccine before our trip.
- D. We will wear long pants and long-sleeved shirts in the woods.
Correct answer: D
Rationale: The correct answer is D. Wearing long pants and long-sleeved shirts is an effective preventive measure against tick bites, which reduces the risk of contracting Lyme disease. This attire helps to minimize skin exposure to ticks, thereby decreasing the chances of a tick attaching and transmitting the disease-causing bacteria.
2. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
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.
3. While teaching a parenting class to new parents, the nurse describes the needs of infants and toddlers regarding discipline and limit setting. What is the most important reason for implementing such parenting behaviors?
- A. Children need help in developing social skills.
- B. This age group fears loss of self-control.
- C. They provide the child with a sense of security.
- D. Children must learn to deal with authority.
Correct answer: C
Rationale: Implementing discipline and limit setting for infants and toddlers is primarily important as it provides them with a sense of security. This sense of security is crucial for their emotional and psychological development, helping them feel safe and supported as they explore the world around them. Choice A is incorrect because while developing social skills is important, the primary reason for discipline and limit setting in this context is to provide security. Choice B is incorrect as it does not address the main reason for implementing discipline and limit setting. Choice D is incorrect as the primary focus is not about dealing with authority at this early stage of development.
4. The mother calls the clinic and tells the practical nurse (PN) that her child cannot swallow a prescribed tablet that was dispensed by the local pharmacy as a whole tablet. How should the PN respond?
- A. You can crush the tablet and mix it with food.
- B. You should not force the child to swallow the tablets by holding her nose closed.
- C. If a liquid form is available, the pharmacist can be contacted for a prescription change.
- D. Do not advise the child to chew the tablet if she cannot swallow it.
Correct answer: C
Rationale: When a child is unable to swallow a tablet, the appropriate response is to consider if a liquid form of the medication is available. This is a safer and more effective alternative than forcing the child to swallow or chew the tablet. Contacting the pharmacist for a prescription change can provide a suitable solution that ensures the child receives the medication in a more manageable form. Choices A, B, and D are incorrect because crushing the tablet and mixing it with food may alter the medication's effectiveness or taste, forcing the child to swallow or holding her nose closed can be distressing and ineffective, and advising the child to chew the tablet is not recommended as an alternative to swallowing it.
5. A 7-year-old is admitted to the hospital with persistent vomiting, and a nasogastric tube attached to low intermittent suction is applied. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 100 mL in the last 8 hours.
- B. Shift intake of 640 mL IV fluids plus 30 mL PO ice chips.
- C. Serum potassium of 3.0 mEq/L.
- D. Serum pH of 7.45.
Correct answer: C
Rationale: A serum potassium level of 3.0 mEq/L is significantly low and indicates hypokalemia, which can lead to serious complications such as cardiac arrhythmias. Therefore, it is crucial for the nurse to report this finding promptly to the healthcare provider for immediate intervention. The other findings are not as critical in this situation. Gastric output of 100 mL in the last 8 hours may be expected in a patient with persistent vomiting. The shift intake of IV fluids and ice chips indicates fluid replacement, which is important but not as urgent as correcting electrolyte imbalances. A serum pH of 7.45 is within the normal range and does not indicate an immediate concern.
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