Correct Answer: B

Rationale: The correct answer is B. Administering thyroid hormone to a newborn diagnosed with hypothyroidism can prevent developmental delays and mental retardation. This treatment is crucial to ensure optimal growth and development. Choice A is incorrect because with prompt treatment, mental retardation can be prevented. Choice C is incorrect as hypothyroidism can also be acquired and not only hereditary. Choice D is incorrect as physical growth and development can be supported through timely administration of thyroid hormone.

Correct Answer: B

Rationale: Assessing the client's manual dexterity is crucial before teaching the administration of eye drops. Manual dexterity is essential for the proper instillation of eye drops. If the client has limited manual dexterity, alternative methods of administration may be necessary. The other choices, such as determining third-party payment plan, proximity to health care services, and ability to use visual assistive devices, are not directly related to the immediate need for assessing manual dexterity for the proper administration of eye drops.

Correct Answer: D

Rationale: Following cast application for congenital clubfoot in a 2-month-old child, the priority nursing goal should be to maintain tissue perfusion. This is crucial to prevent complications like compartment syndrome and ensure proper healing. While managing pain, relieving muscle spasms, and promoting mobility are important aspects of care, they are secondary to ensuring adequate tissue perfusion in this scenario.

Correct Answer: B

Rationale: The correct answer is 'specific.' In formulating a community care plan, defining expected results and participant roles require objectives to be specific to provide clear guidance and outcomes. 'Time-bound' refers to setting deadlines, 'resource-oriented' focuses on utilizing available resources efficiently, and 'measurable' indicates the ability to quantify progress, but these aspects do not necessarily address the need for clarity and definition in defining expected results and participant roles.

Correct Answer: D

Rationale: The correct answer is D: Bradycardia. Pyridostigmine, a cholinesterase inhibitor used in myasthenia gravis, can lead to bradycardia as a side effect. Choice A, constipation, is not a common side effect of pyridostigmine. Choice B, hypertension, is unlikely as pyridostigmine is more likely to cause hypotension. Choice C, muscle weakness, is actually a symptom of myasthenia gravis itself and not a side effect of pyridostigmine.