All the following are features of chronic inflammatory demyelinating polyradiculoneuropathies (CIDPs) EXCEPT

Correct Answer: D

Rationale: CSF in CIDP typically shows high protein without pleocytosis (albuminocytologic dissociation), unlike GBS where pleocytosis can occur.

Correct Answer: C

Rationale: Potassium is the most abundant intracellular cation, a well-established fact in physiology, consistent with the context of the question.

Correct Answer: B

Rationale: Cholestatic liver disease is a severe, frequent complication of prolonged parenteral nutrition, often more concerning than others.

Correct Answer: A

Rationale: Hyperglycemia causes hyponatremia with high osmolality due to osmotic shift of water into the extracellular space.

Correct Answer: A

Rationale: Bartter syndrome features hypokalemia, metabolic alkalosis, hypercalciuria, and nephrocalcinosis due to renal tubular defects.