Correct Answer: B

Rationale: The correct answer is B because nursing interventions for cognitively impaired children prioritize promoting loving interactions with family. This support helps in creating a nurturing environment that contributes to the child's well-being and development. Choice A is not the priority as good nutrition, though important, may not address the immediate emotional and social needs of the child. Choice C is vague and does not specify how stimulation will be provided. Choice D, contact with peers, is also valuable but not as crucial as the primary relationships and interactions within the family unit for a cognitively impaired child.

Correct Answer: D

Rationale: In a patient with COPD and HF, monitoring electrolyte levels is essential due to potential imbalances caused by medications or fluid shifts. Maintaining pulse oximetry is crucial to assess oxygenation status in COPD and HF. Providing assistance with mobility helps prevent deconditioning and complications. Therefore, all the actions mentioned are necessary for comprehensive care in this scenario, making option D the correct answer. Choices A, B, and C are all important aspects of managing COPD and HF, ensuring holistic and effective care.

Correct Answer: C

Rationale: The correct answer is C. Contact with the grandson's new dog could have introduced new allergens or irritants, exacerbating the eczema symptoms. Choice A is unrelated to the exacerbation of symptoms. Choice B, receiving an influenza immunization, is unlikely to directly cause an exacerbation of eczema symptoms. Choice D, applying corticosteroid cream, is a common treatment for eczema and would not likely be the cause of the exacerbation.

Correct Answer: A

Rationale: The correct answer is High-density lipoprotein (HDL). HDL is known as 'good' cholesterol because it helps remove cholesterol from the arteries, reducing the risk of atherosclerosis. LDL (choice B) is considered 'bad' cholesterol as it can deposit cholesterol in the arteries, increasing the risk of atherosclerosis. VLDL (choice C) and IDL (choice D) are also associated with increased risk of atherosclerosis rather than decreasing it.

Correct Answer: B

Rationale: In acute epiglottitis, the infected epiglottis becomes inflamed and can lead to sudden airway obstruction, which is a life-threatening emergency. This can cause difficulty breathing and necessitates immediate intervention to secure the airway. Increased carbon dioxide levels may occur due to inadequate ventilation resulting from airway obstruction, but the primary concern is the obstruction itself, not the carbon dioxide levels. Inability to swallow may be present due to pain and swelling in the throat but is not the immediate life-threatening complication associated with acute epiglottitis. Bronchial collapse is not a typical consequence of acute epiglottitis.