Adult Health Nursing Test Bank

Correct Answer: A

Rationale: The correct answer is A: Central retinal artery occlusion. This condition presents with sudden-onset, painless vision loss, cherry-red spot at the macula due to lack of blood flow, and attenuated retinal vessels. The cherry-red spot is due to the transparency of the fovea when there is ischemia in the surrounding retina. Central retinal vein occlusion (B) presents with sudden vision loss accompanied by retinal hemorrhages and dilated tortuous veins. Retinal detachment (C) typically presents with sudden flashes, floaters, and a curtain-like visual field defect. Acute angle-closure glaucoma (D) presents with severe eye pain, blurred vision, halos around lights, and a fixed mid-dilated pupil.

Correct Answer: C

Rationale: The correct answer is C: Notify the anesthesia provider for further assessment. This is the most appropriate action because an anesthesia provider is trained to assess and manage changes in blood pressure during surgery. Administering antihypertensive medication (A) without proper assessment can be dangerous. Documenting the readings (B) is important but not the immediate action. Continuing to monitor closely (D) is necessary but notifying the anesthesia provider for further assessment should be the priority.

Correct Answer: D

Rationale: The correct answer is D: Create a core group. In the CO-PAR process, creating a core group is the first step in the pre-Entry phase as it establishes a team of committed individuals who will lead the participatory action research. This core group will provide leadership, coordination, and represent the diversity of the community. Surveying the community (choice A) comes after forming the core group to gather information. Training the technical working group (choice B) and holding a community assembly (choice C) are subsequent steps in the process after the core group is established.

Correct Answer: D

Rationale: The correct answer is D: Diabetes insipidus. This condition is characterized by excessive thirst, large volumes of dilute urine, low urine osmolality, hypernatremia, and elevated serum osmolality. The underlying cause is a deficiency in or insensitivity to antidiuretic hormone (ADH), leading to the inability of the kidneys to concentrate urine properly. Hyperthyroidism (choice A) and hypothyroidism (choice B) do not directly affect urine concentration. While diabetes mellitus (choice C) can also present with polyuria and polydipsia, it would typically have high urine osmolality due to the presence of glucose. Therefore, diabetes insipidus is the most likely endocrine disorder responsible for these specific symptoms.

Correct Answer: A

Rationale: The correct answer is A: Myasthenia gravis. In myasthenia gravis, there is a decrease in acetylcholine receptors at the neuromuscular junction, leading to muscle weakness and fatigue. This occurs due to autoimmune destruction of these receptors. ALS (B) affects motor neurons, not acetylcholine receptors. Guillain-Barre syndrome (C) is an autoimmune disorder affecting peripheral nerves, not neuromuscular junctions. Muscular dystrophy (D) is a genetic disorder causing muscle degeneration, not affecting acetylcholine receptors.