What this page covers
Practice Step 1-style biochemistry questions on Distal RTA type 1 / H+ ATPase / alpha-intercalated cells, including Infant, failure to thrive, hypokalemia, hyperchloremic normal anion gap metabolic acidosis, inappropriately high urine pH, nephrocalcinosis, with emphasis on enzyme / mechanism and answer-choice reasoning.
How to use this page
Review the topic and reasoning focus, then practice Step 1-style questions inside BiochemStep. The question set emphasizes mechanism-first answer-choice reasoning rather than passive content review.