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*Biochemistry
*Biochemistry
**Hypokalaemia, hypochloraemia and hypokalaemia may be detected as a result of vomiting due to gastric outflow obstruction.
**Hypokalaemia, hypochloraemia and hypokalaemia may be detected as a result of vomiting due to gastric outflow obstruction.
===Radiography===
*'''Plain survey radiographs''' of the abdomen may reveal a radiopaque object or mass within the abdomen.
*'''Contrast radiography''' in the form of a gasrtrointestinal barium contrast study may be indicated if plain radiographs are unremarkable.
==Treatment==
==Treatment==