This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
FALSE statement about High Anion gap 
Select and explain. 
A. Seen in uraemia, B. Iron causes high anion gap, C. Hypercholremia present, D. Acidosis is present
C: Hypercholremia present
Answer: C: Hypercholremia present 
Explanation: (C) Hypercholremia present # ANION GAP is the difference in the measured cations and the measured anions in serum, plasma, or urine.> In patients with a Normal anion gap the drop in HCO3- is the primary pathology. Since there is only one other major buffering anion, it must be compensated for almost completely by an increase in CI-> This is therefore also known as hyperchloremic acidosis. Normal anion gap is seen in diarrhea, renal tubular acidosis where in both these conditions there is loss of HCo3-.> Total parentral nutrition and addisons disease also presents with Normal anion gap .> High anion gap is seen in: Lactic acidosis, Ketoacidosis, Diabetic ketoacidosis, Alcohol abuse, Uremia. Iron and drugs like phenformin, aspirin, isoniazid also causes high anion gap.> Low anion gap is frequently caused by hypoalbuminemia(cirrhosis, nephrotic syndrome), Multiple myeloma.