Correct Answer: B

Rationale: The correct answer is B: Sedation. Cancer patients taking opioids commonly experience sedation due to the central nervous system depressant effects of opioids. Opioids can cause drowsiness, fatigue, and decreased alertness. Tolerance (A) is a possible issue but is not the most common complication. Addiction (C) is less common in cancer patients due to the nature of their pain management. Constipation (D) is a common side effect of opioids but is not the most common complication in cancer patients. Sedation is the most prevalent issue affecting the quality of life and daily functioning of cancer patients on opioids.

Correct Answer: C

Rationale: The correct answer is C: 12. At 18 months, a child should have 12 teeth, which include 8 incisors and 4 molars. This is because children typically start teething around 6 months, with the lower central incisors coming first. By 18 months, they should have all 8 incisors and usually the first set of molars. Options A, B, and D are incorrect because they do not align with the typical dental development timeline for children. Having only 6, 8, or 16 teeth at 18 months would indicate a delay or abnormality in dental growth.

Correct Answer: A

Rationale: Administering oxygen is the most important action for a client with respiratory distress because it helps improve oxygen levels in the blood and supports breathing. Oxygen therapy can prevent hypoxia and reduce respiratory workload. Corticosteroids, bronchodilators, and analgesics may be beneficial in specific situations, but they are not the primary intervention for respiratory distress. Corticosteroids reduce inflammation, bronchodilators help open airways, and analgesics provide pain relief but do not directly address the underlying issue of inadequate oxygenation. Administering oxygen should always be the first priority in managing respiratory distress.

Correct Answer: D

Rationale: The correct answer is D because clinical practice guidelines for periodic health examinations provide a frequency schedule for health visits based on age. This is crucial for ensuring timely preventive care and monitoring of growth and development. Choice A is incorrect as guidelines focus on preventive care, not diagnosing illnesses. Choice B is incorrect because while guidelines may mention developmental milestones, their primary focus is on health maintenance. Choice C is incorrect as guidelines recommend health visits based on individual needs, not a one-size-fits-all annual physical examination.

Correct Answer: C

Rationale: The correct answer is C because validating the data by asking a colleague to listen to the breath sounds helps to ensure accuracy and reliability. It allows for a second opinion to confirm the nurse's assessment and prevents any potential misinterpretation. This collaborative approach promotes patient safety and quality care. Choices A and D are incorrect as they do not address the immediate need for validation and may delay appropriate intervention. Choice B is also incorrect as it does not ensure the accuracy of the assessment and may lead to miscommunication or incorrect treatment decisions.