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?

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.

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.

Correct Answer: D

Rationale: The correct answer is D. RSV is highly contagious, even without direct contact. It is important to prevent the spread of the virus to other children, so the infected child should not attend the birthday party to avoid exposing other children to RSV. This is crucial to protect the health of other children who may be more vulnerable to the virus. Choices A, B, and C are incorrect. Choice A is incorrect as RSV remains contagious for a period of time, and precautions should be taken to prevent its spread. Choice B is incorrect because the age limit specified is not a reliable measure to prevent transmission. Choice C is incorrect as wearing a mask may not be sufficient to prevent the spread of RSV in a social setting like a birthday party.

Correct Answer: C

Rationale: Children with von Willebrand disease have a deficiency in a clotting protein, putting them at risk of bleeding episodes. The priority nursing intervention for a child with von Willebrand disease is to guard against bleeding injuries to prevent excessive bleeding or hemorrhage. Choices A, B, and D are not the priority interventions for von Willebrand disease. While reducing exposure to infection is important for any hospitalized child, it is not the priority for von Willebrand disease. Eliminating contact with cold objects is more relevant for conditions like Raynaud's disease. Reducing contact with other children is not a specific priority related to managing von Willebrand disease.

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.