Which of the following causes hyperkalemia with K+ excess:

Correct Answer: C

Rationale: Addison's disease causes hyperkalemia due to aldosterone deficiency, leading to reduced renal potassium excretion.

Correct Answer: B

Rationale: Vaccination does not amplify anaphylaxis, while infections, stress, and physical activity can increase susceptibility.

Correct Answer: A

Rationale: Intestinal tuberculosis commonly affects the ileocecal region due to its high lymphoid tissue concentration and slow transit time.

Correct Answer: B

Rationale: Rapid correction of hypernatremia can cause cerebral edema. The recommended safe correction rate is no more than 12 mmol/L per 24 hours.

Correct Answer: B

Rationale: Renal tubular acidosis causes normal anion gap acidosis because it results from impaired renal acid excretion rather than accumulation of organic acids.