Correct Answer: A

Rationale: To address dry skin and prevent chronic ulcers and infections in an overweight client on warfarin with decreased arterial blood flow, the nurse should instruct the client to apply lanolin or petroleum jelly to intact skin. This helps maintain skin integrity and moisture. Following a reduced-calorie, reduced-fat diet (Choice B) may be beneficial for weight management but is not directly related to skin care. Inspecting involved areas daily for new ulcerations (Choice C) is important for skin assessment and early intervention but does not specifically address dry skin. Instructing the client to limit activities of daily living (ADLs) (Choice D) is not necessary for addressing dry skin; in fact, promoting mobility and circulation through appropriate activities is crucial.

Correct Answer: B

Rationale: Elevated creatinine levels are indicative of dehydration because when the body is dehydrated, the kidneys concentrate urine to preserve fluid, leading to higher levels of creatinine. Low sodium levels (Choice A) can be seen in conditions like hyponatremia but are not specific to dehydration. Low potassium levels (Choice C) are more commonly associated with conditions like hypokalemia. High blood glucose levels (Choice D) are typically seen in diabetes and are not specific indicators of dehydration.

Correct Answer: D

Rationale: In hyperthyroidism, eye discomfort due to protuberant eyeballs (exophthalmos) can be alleviated by using artificial tear drops. These drops help prevent complications associated with dry eyes and promote comfort. Assessing for signs of increased intracranial pressure (Choice A) is not directly related to the client's eye discomfort from hyperthyroidism. Administering intravenous levothyroxine (Choice B) is not the appropriate intervention for managing eye discomfort in hyperthyroidism. Reviewing serum electrolyte values (Choice C) is important in hyperthyroidism but is not directly addressing the client's current eye discomfort and protuberant eyeballs.

Correct Answer: D

Rationale: The initial action the nurse should take when a client's blood pressure drops significantly during hemodialysis is to lower the head of the chair and elevate the feet. This position adjustment helps improve blood flow to the brain and vital organs, assisting in stabilizing blood pressure. Stopping the dialysis treatment immediately may not be necessary if the blood pressure can be managed effectively by position changes. Administering 5% albumin IV is not the first-line intervention for hypotension during dialysis. Monitoring blood pressure every 45 minutes is important but not the immediate action needed to address the significant drop in blood pressure observed during the dialysis session.

Correct Answer: A

Rationale: The correct answer is A: Heartburn. Heartburn is the most common symptom of GERD as it occurs due to the reflux of stomach acid into the esophagus. This leads to a burning sensation in the chest that can worsen after eating, lying down, or bending over. Choice B, Nausea, is not typically the most common symptom of GERD, although it can occur in some cases. Choice C, Abdominal pain, is not a primary symptom of GERD and is more commonly associated with other gastrointestinal conditions. Choice D, Vomiting, is also not the most common symptom of GERD, although it can occur in severe cases or as a result of complications.