Cannabinoid Hyperemesis Syndrome (CHS) - An emerging gastrointestinal disorder and clinical challenge.

Nausea and vomiting are not uncommon symptoms resulting in emergency department (ED) or primary care visits. One of the emerging etiologies - Cannabinoid Hyperemesis Syndrome (CHS) remains significantly under-diagnosed, often resulting in unnecessary repeat ED visits and testing. This is in part due to lack of experience with and knowledge about CHS by health care professionals.

Lactose intolerance - A practical approach, Part 1.

The toxicology, immunology and gastroenterology aspects of food remain important in clinical practice, as anyone treating food related anaphylaxis, or chronic intolerance syndromes can attest. Although entire editions of journals could focus on any one aspect of adverse effects from food, the following review addresses the important and prevalent gastrointestinal condition lactose intolerance and gastrointestinal (GI) conditions that have similar presentation but require different treatment.