title: [The next patient is a sick fish, what to do? (part I)].
abstract: Many health problems in fish are the result of living in poor environmental conditions. The clinical history is very important, not only of the fish, but also of the water quality. Watertesting is presented and after making the clinical examination, a diagnosis can be made. In the second article therapy and surgical procedures are discussed.
authors.forename: P J
authors.initials: PJ
authors.lastname: Werkman
mesh_terms: D000818:Animals; D003937:Diagnosis, Differential; D005393:Fish Diseases / Q000175:diagnosis / Q000209:etiology*; D005399:Fishes; D010808:Physical Examination / Q000662:veterinary; D014867:Water / Q000032:analysis* / Q000592:standards
chemical_list: D014867:Water