Question

A 4-month-old infant presents with projectile vomiting and a palpable 'olive' in the epigastric region. This is likely pyloric stenosis. According to BNFC, which fluid imbalance is most characteristic prior to correction?

Accepted Answer

Hyponatraemic, hypochloraemic metabolic alkalosis

Answer

Hypernatraemic dehydration

Answer

Hyperkalaemic metabolic acidosis

Answer

Isotonic fluid depletion

Answer

Hyperchloraemic metabolic acidosis

Practice question

A 4-month-old infant presents with projectile vomiting and a palpable 'olive' in the epigastric region. This is likely pyloric stenosis. According to BNFC, which fluid imbalance is most characteristic prior to correction?