Correct Answer: A

Rationale: The correct answer is A: Syndrome of inappropriate antidiuretic hormone (SIADH). Vasopressin is a medication used to treat diabetes insipidus by increasing water reabsorption in the kidneys. However, an excessive dose of vasopressin can lead to water retention, causing SIADH, which is characterized by dilutional hyponatremia. Choices B, C, and D are incorrect. Thyroid storm is a severe form of hyperthyroidism characterized by increased metabolism and can lead to life-threatening complications. Cushing syndrome results from excess cortisol production and is characterized by weight gain, hypertension, and other features. Vitamin D toxicity occurs due to an overdose of vitamin D, leading to hypercalcemia and symptoms such as nausea, vomiting, and weakness.

Correct Answer: C

Rationale: The correct answer is C. Using echolalia, which is the repetition of words or phrases, is not typical for a 2-year-old child and may indicate the need for further evaluation. Choices A, B, and D are all within the expected developmental skills for a 2-year-old. While most 2-year-olds may not be able to stand on one foot, it is not a cause for concern at this age. Building a tower of 7 blocks and coloring outside the lines of a picture are both appropriate for a 2-year-old's developmental skills.

Correct Answer: C

Rationale: Avoiding gluten is not typically necessary for managing gastroesophageal reflux disease (GERD) in children. The correct dietary instruction for a 2-year-old with GERD would be to avoid high-fat foods. High-fat foods can relax the lower esophageal sphincter, leading to increased reflux symptoms. While spicy foods and dairy products may also trigger reflux in some individuals, the primary focus should be on avoiding high-fat foods due to their direct impact on the lower esophageal sphincter, which exacerbates GERD symptoms.

Correct Answer: D

Rationale: The correct answer is to place the child in a room near the nurses' desk. This placement allows for close monitoring and immediate intervention if needed, ensuring the safety and well-being of the child. Placing the child in a private room (Choice A) may limit visibility and monitoring. Putting the child with an older, friendly child (Choice B) or a child of the same age (Choice C) does not prioritize the necessary close monitoring and intervention that a child potentially experiencing abuse requires. Hence, placing the child in a room near the nurses' desk is the most appropriate choice in this scenario.

Correct Answer: C

Rationale: The correct nursing diagnosis would be 'Grieving related to the child's poor prognosis.' Trisomy 18 is associated with a poor prognosis, and families often experience feelings of grief and loss when dealing with such a diagnosis. The choice 'Interrupted family process' does not directly address the emotional response to the prognosis. 'Deficient knowledge' may be a concern but does not address the emotional aspect of dealing with a poor prognosis. 'Ineffective coping related to stress from providing care' focuses more on the caregiver's ability to cope rather than the family's response to the child's condition.