ATI Fluid Electrolyte and Acid-Base Regulation

Correct Answer: C

Rationale: Rationale: Guillain-Barr syndrome can cause inadequate ventilation due to paralysis of the respiratory muscles. This results in respiratory acidosis. Endocarditis, multiple myeloma, and amphetamine overdose do not directly affect ventilation. Endocarditis is an infection of the heart valves, multiple myeloma is a cancer of plasma cells, and amphetamine overdose primarily affects the central nervous system and cardiovascular system, not ventilation. Therefore, Guillain-Barr syndrome is the most likely diagnosis in this case.

Correct Answer: C

Rationale: Rationale: Option C is correct because berries, cherries, apples, and peaches are indeed low in potassium compared to other fruits. This response acknowledges the client's love for fruits while providing suitable alternatives to manage potassium levels. By choosing these low-potassium fruits, the client can continue enjoying fruits without exacerbating hyperkalemia. Incorrect options: A: Potatoes and avocados are high in potassium, so they are not suitable substitutes. B: Cooking fruit does not significantly reduce its potassium content. D: This option lacks guidance and does not offer a solution to the client's concern about high potassium levels.

Correct Answer: C

Rationale: The correct answer is C. The client's high serum potassium level of 7.5 mEq/L can lead to serious cardiovascular complications like arrhythmias. The immediate priority is to lower potassium levels rapidly to prevent cardiac arrest. Administering dextrose 20% and regular insulin IV push helps shift potassium from extracellular to intracellular space, lowering serum levels quickly. Option A (Kayexalate) is not as rapid as insulin therapy. Option B (low-potassium diet) is not immediate. Option D (hemodialysis) is effective but not as quick as insulin therapy for urgent potassium reduction.

Correct Answer: B

Rationale: The correct answer is B: Hypocalcemia. Following a thyroidectomy, there is a risk of damaging the parathyroid glands, leading to hypocalcemia. Symptoms such as tingling in lips and fingers, muscle spasms, and increased muscle tone are classic signs of hypocalcemia. The initial concern should be hypocalcemia due to its potential to cause serious complications such as tetany and laryngospasm. Options A, C, and D are incorrect as they do not align with the symptoms described. Hypophosphatemia may present with weakness and respiratory failure, hypermagnesemia with hypotension and respiratory depression, and hyperkalemia with muscle weakness and cardiac arrhythmias.

Correct Answer: C

Rationale: The correct answer is C because antacids contain aluminum or magnesium, which can bind with phosphorus and decrease its absorption, leading to hypophosphatemia. Malnourishment (choice A) can cause hypophosphatemia due to inadequate intake, uncontrolled diabetes (choice B) is associated with hyperphosphatemia, and hyperparathyroidism (choice D) can lead to hyperphosphatemia due to increased calcium levels.