| Alkali denaturation test | |
|---|---|
| Purpose | differentiate neonatal from maternal blood |
The alkali denaturation test, also known as A or Apt test, is a medical test used to differentiate fetal or neonatal blood from maternal blood found in a newborn's stool or vomit, or from maternal vaginal blood.[1][2]
- ^ Moustafa MH, Taylor M, Fletcher L (August 2005). "My two-week-old daughter is throwing up blood". Acad Emerg Med. 12 (8): 775–7. doi:10.1197/j.aem.2005.03.524. PMID 16079432.
- ^ APT L, DOWNEY WS (July 1955). "Melena neonatorum: the swallowed blood syndrome; a simple test for the differentiation of adult and fetal hemoglobin in bloody stools". J. Pediatr. 47 (1): 6–12. doi:10.1016/S0022-3476(55)80118-7. PMID 14392548.