HESI RN
HESI Pediatric Practice Exam
1. During a well-baby check of a 7-month-old infant, the practical nurse notes an absence of babbling. Which focused assessment should the PN implement?
- A. Visual function.
- B. Auditory function.
- C. Cognitive function.
- D. Social development.
Correct answer: B
Rationale: The absence of babbling in a 7-month-old infant is a concerning auditory development milestone. Babbling is an early stage of language development that involves making various sounds. A lack of babbling could indicate a hearing impairment or other auditory issues. Therefore, the practical nurse should focus on assessing the infant's auditory function to determine if further evaluation or intervention is necessary. Choices A, C, and D are incorrect because the absence of babbling specifically points towards a potential issue related to auditory function rather than visual, cognitive, or social development.
2. The healthcare provider plans to administer 10 mcg/kg of digoxin elixir as a loading dose to a child who weighs 55 pounds. Digoxin is available as an elixir of 50 mcg/ml. How many milliliters of the digoxin elixir should the healthcare provider administer to this child?
- A. 5 ml
- B. 10 ml
- C. 15 ml
- D. 20 ml
Correct answer: A
Rationale: To calculate the dose, first, convert the child's weight to kilograms by dividing 55 pounds by 2.2, which equals approximately 25 kg. Then, multiply the weight by the dose (10 mcg/kg) to get the total dose needed, which is 250 mcg. Next, divide the total dose by the concentration of the elixir (50 mcg/ml) to determine the volume needed, which is 5 ml. Therefore, the correct dose is 5 ml based on the child's weight and the concentration of the elixir.
3. When should oral hygiene practices start for an infant according to the American Dental Association guidelines?
- A. There is no need to begin until after all of the child's baby teeth are in.
- B. You don't have to worry about that until your child can handle a toothbrush.
- C. You can begin now using toothpaste on a gauze pad and wiping the gums.
- D. Begin wiping the teeth with a washcloth and water when the first tooth appears.
Correct answer: D
Rationale: According to the American Dental Association guidelines, oral hygiene practices should start as soon as the first tooth appears. At this stage, using a soft cloth and water to clean the infant's gums and teeth is recommended to establish good oral hygiene habits early on and prevent dental issues. Choice A is incorrect as waiting until all baby teeth are in is too late for starting oral hygiene practices. Choice B is incorrect as it is essential to start oral hygiene before the child can handle a toothbrush. Choice C is incorrect as using toothpaste on a gauze pad is not recommended for infants with emerging teeth.
4. A school-age child with a history of type 1 diabetes mellitus is brought to the emergency department with confusion and rapid breathing. The practical nurse (PN) suspects diabetic ketoacidosis (DKA). Which initial intervention should the PN anticipate?
- A. Administer subcutaneous insulin.
- B. Give oral glucose tablets.
- C. Start intravenous fluids.
- D. Administer oxygen therapy.
Correct answer: C
Rationale: Intravenous fluids are typically the initial intervention in diabetic ketoacidosis (DKA) to treat dehydration and stabilize the patient's condition. The fluid replacement helps correct electrolyte imbalances and improve perfusion, which are crucial in managing DKA. Insulin therapy follows after fluid resuscitation to address the underlying cause of DKA, which is the lack of insulin leading to increased ketone production. Administering subcutaneous insulin (Choice A) would be premature without first addressing the dehydration and electrolyte imbalances. Giving oral glucose tablets (Choice B) is contraindicated in DKA as the patient already has high blood glucose levels. Administering oxygen therapy (Choice D) may be necessary based on the patient's condition, but addressing dehydration with intravenous fluids is the priority intervention in DKA.
5. The heart rate for a 3-year-old with a congenital heart defect has steadily decreased over the last few hours; it is now 76 bpm, whereas the previous reading 4 hours ago was 110 bpm. Which additional finding should be reported immediately to a healthcare provider?
- A. Oxygen saturation of 94%.
- B. Respiratory rate of 25 breaths/minute.
- C. Urine output of 20 mL/hr.
- D. Blood pressure of 70/40.
Correct answer: D
Rationale: A significant drop in heart rate and blood pressure should be reported immediately as it may indicate worsening of the congenital heart defect. A decrease in blood pressure to 70/40 is a critical finding that suggests potential cardiovascular compromise and requires urgent attention to prevent further deterioration. Oxygen saturation, respiratory rate, and urine output are important parameters, but in this scenario, the alarming decrease in blood pressure is a more critical finding that necessitates immediate reporting to the healthcare provider.
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