For a 48-hour-old American Paint foal presenting with colic, which two broad aspects of signalment should you consider?

• A. Congenital diseases and genetic disorders
• B. Dietary history and vaccination status
• C. Age and breed incidence
• D. Sex and parity

Answer: (A)

The essential idea is that signalment uses basic patient demographics to tailor the differential diagnosis. For a 48-hour-old foal, the age places you squarely in the neonatal period, where colic has different typical causes than in adults—think things like delayed meconium passage, gastrointestinal immaturity, congenital GI anomalies, or perinatal infections. The breed note matters because some breeds show predispositions to certain congenital or inherited problems that can influence how colic presents or which parts of the GI tract are more likely to be involved. So focusing on the foal’s age and its breed (neonatal considerations and breed-associated predispositions) gives the most targeted start to the diagnosis and initial workup. Other factors like dietary history, vaccination, sex, or parity are relevant in broader care or different contexts, but they don’t shape the neonatal colic differential as directly as age and breed do.