Nursing Elites

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?

• 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.

2. A mother brings her school-aged daughter to the pediatric clinic for evaluation of her anti-epileptic medication regimen. What information should the nurse provide to the mother?

• A. The medication dose will be tapered over a period of 2 weeks when being discontinued
• B. If seizures return, multiple medications will be prescribed for another 2 years
• C. A dose of valproic acid (Depakote) should be available in the event of status epilepticus
• D. Phenytoin (Dilantin) and phenobarbital (Luminal) should be taken for life

Correct answer: A

Rationale: Antiepileptic drugs should not be abruptly stopped as it may lead to seizure recurrence. Tapering the medication over a period of 2 weeks helps to prevent withdrawal effects and minimize the risk of seizures. Choice B is incorrect because starting multiple medications for seizure recurrence is not the first-line approach. Choice C is incorrect because valproic acid is not the first-line medication given in the event of status epilepticus. Choice D is incorrect because antiepileptic medications are usually evaluated over time and adjusted based on the individual's response; it is not always necessary to take them for life.

3. The caregiver is providing discharge instructions to the parents of a 6-month-old infant who was hospitalized for bronchiolitis. Which statement by the parents indicates a correct understanding of the instructions?

• A. We should keep our baby away from people with colds
• B. We should continue giving the prescribed medication even if our baby seems better
• C. We should avoid giving solid foods to help with recovery
• D. We can place our baby to sleep on their back to help with breathing

Correct answer: A

Rationale: Keeping the infant away from people with colds is crucial to prevent the spread of respiratory infections, especially for infants recently hospitalized with bronchiolitis. This precaution helps protect the baby from further illnesses and promotes recovery. The other choices are incorrect because it is important to complete the prescribed medication course even if the baby seems better to ensure the infection is fully treated (Choice B). Solid foods are usually introduced around six months of age, so avoiding them entirely may not be necessary (Choice C). Placing the baby to sleep on their back is a safe sleep practice to prevent sudden infant death syndrome (SIDS) but may not directly help with breathing in the context of bronchiolitis (Choice D).

4. In a 6-year-old child with asthma experiencing difficulty breathing and using accessory muscles to breathe with a peak flow reading in the red zone, what should the nurse do first?

• A. Administer a nebulized bronchodilator
• B. Obtain an arterial blood gas
• C. Start the child on oxygen therapy
• D. Contact the healthcare provider

Correct answer: A

Rationale: The correct action for a 6-year-old child with asthma who is experiencing difficulty breathing, using accessory muscles to breathe, and has a peak flow reading in the red zone is to administer a nebulized bronchodilator first. Nebulized bronchodilators work rapidly to open up the airways, providing immediate relief and improving breathing. This intervention is crucial in addressing the acute respiratory distress the child is facing. Obtaining an arterial blood gas, starting oxygen therapy, or contacting the healthcare provider can be considered after the initial administration of the bronchodilator, as they are not the primary interventions needed to manage the child's acute respiratory distress.

5. A child who weighs 25 kg is receiving IV ampicillin 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?

• A. 1875 mg
• B. 625 mg
• C. 2000 mg
• D. 1500 mg

Correct answer: A

Rationale: To calculate the dose for each administration, multiply the child's weight (25 kg) by the dose (300 mg/kg/24 hours) and divide by the number of doses per day (6, as doses are every 4 hours). This gives us (25 kg * 300 mg/kg / 24 hours) / 6 doses = 1875 mg. Therefore, the nurse should administer 1875 mg for each dose. Choice B, 625 mg, is incorrect as it does not consider the correct calculation based on the weight and prescribed dose. Choice C, 2000 mg, is incorrect as it is not derived from the correct dosage calculation. Choice D, 1500 mg, is incorrect as it does not reflect the accurate dosage calculation based on the weight of the child and the prescribed dose.

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