<prompt> Regarding Hyperemesis gravidarum false is:Allergic basis is suggested.Hormonal imbalance may be a cause.Small heart is an incidental finding.May show manifestations of Wernickes encephalopathy.  <response>: Ans. C. Small heart is an incidental findingSmall heart is a constant finding; there may be subendocardial hemorrhage; small hemorrhages in the hypothalamic region giving the manifestations of Wernickes encephalopathy. Etiology includes hormonal, psychogenic, dietetic and allergic basis. 