| 释义 |
Apt test
Apt test (apt), a test for identifying fetal blood by the addition of sodium hydroxide and water to a specimen.Apt test [Leonard Apt, U.S. pediatric ophthalmologist] A test used originally to identify the source of black (bloody) stools in newborn infants; it is now used in modified form to distinguish fetal from maternal hemoglobin in blood samples from any source, e.g., the umbilical cord or the gastrointestinal tract. See: swallowed blood syndrome |