A raised blood pH and bicarbonate level is consistent with
A. Metabolic acidosis.
B. Partly compensated respiratory alkalosis.
C. A reduced PCO2.
D. Chronic renal failure with a raised PCO2.
E. A history of persistent vomiting of gastric contents.
The correct answer is E. A history of persistent vomiting of gastric contents.
A raised blood pH (alkalosis) and bicarbonate level is consistent with metabolic alkalosis, which can occur due to:
– Persistent vomiting of gastric contents (E), leading to loss of hydrogen ions (H+) and chloride (Cl-) ions, causing a metabolic alkalosis.
– Other causes, such as diuretic use, excessive bicarbonate intake, or severe dehydration, are not listed among the options.