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. What instructions should the nurse provide to the parents about the treatment of head lice in a 3-year-old boy who has been confirmed to have head lice?

• A. Wash the child's bed linens and clothing in hot soapy water.
• B. Dispose of the child's brushes, combs, and other hair accessories.
• C. Rewash the child's hair following a 24-hour isolation period.
• D. Take the child to a hair salon for a shampoo and shorter haircut.

Correct answer: A

Rationale: The correct instruction for the nurse to provide to the parents is to wash the child's bed linens and clothing in hot soapy water. This is essential to eliminate head lice as they can survive on bedding and clothing. It is also important to wash any other items that the child may have used or come into contact with, such as brushes and combs, to prevent reinfestation. Rewashing the child's hair following an isolation period is not necessary, and taking the child to a hair salon for a shampoo and shorter haircut is not a recommended treatment for head lice.

3. What is the priority intervention for a 16-year-old client with a history of depression who is brought to the emergency department after taking an overdose of acetaminophen?

• A. Administer activated charcoal
• B. Place the client on continuous cardiac monitoring
• C. Prepare for gastric lavage
• D. Administer N-acetylcysteine as prescribed

Correct answer: D

Rationale: The priority intervention for a client who has taken an acetaminophen overdose is to administer N-acetylcysteine promptly. N-acetylcysteine is the antidote for acetaminophen overdose and helps prevent liver damage. Activated charcoal may be used in certain cases, but N-acetylcysteine takes precedence as it directly counteracts the toxic effects of acetaminophen. Continuous cardiac monitoring and gastric lavage are not the priority interventions for acetaminophen overdose. Administering N-acetylcysteine is crucial to prevent liver damage and address the overdose, making it the most urgent action in this scenario.

4. A 5-year-old child with leukemia is receiving chemotherapy. The nurse notes that the child’s white blood cell count is low. What is the nurse’s priority intervention?

• A. Administer antibiotics as prescribed
• B. Place the child in protective isolation
• C. Encourage the child to eat a balanced diet
• D. Teach the parents about infection prevention

Correct answer: B

Rationale: The priority intervention for a 5-year-old child with leukemia receiving chemotherapy and having a low white blood cell count is to place the child in protective isolation. This intervention helps reduce the risk of infection, which is crucial in this immunocompromised state. Protective isolation aims to limit the child's exposure to pathogens and promote their safety during a period of increased vulnerability to infections.

5. A child with Graves' disease who is taking propranolol (Inderal) is seen in the clinic. The nurse should monitor the child for which therapeutic response?

• A. Increased weight gain
• B. Decreased heart rate
• C. Reduced headaches
• D. Diminished fatigue

Correct answer: B

Rationale: When a child with Graves' disease is prescribed propranolol (Inderal), the nurse should monitor for a decreased heart rate as a therapeutic response. Propranolol is a beta-blocker that acts to slow down the heart rate, which is beneficial in managing the symptoms of Graves' disease, such as tachycardia and other cardiovascular manifestations. Choices A, C, and D are incorrect because propranolol is not typically associated with increased weight gain, reduced headaches, or diminished fatigue as its primary therapeutic effect in this context.

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