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Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. [1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria .
Hematemesis, melena, and hematochezia are symptoms of acute gastrointestinal bleeding. Bleeding that brings the patient to the physician is a potential emergency and must be considered as such until its seriousness can be evaluated.
Infant respiratory distress syndrome (IRDS), also known as surfactant deficiency disorder (SDD), [2] and previously called hyaline membrane disease (HMD), is a syndrome in premature infants caused by developmental insufficiency of pulmonary surfactant production and structural immaturity in the lungs.
Neonatal infections are infections of the neonate (newborn) acquired during prenatal development or within the first four weeks of life. [1] Neonatal infections may be contracted by mother to child transmission , in the birth canal during childbirth , or after birth. [ 2 ]
These differences in definition must be taken into account when defining mechanisms. For example, using the CDC definition requires that intestinal tissue be so severely damaged that blood vessels have ruptured, allowing visible quantities of blood to be lost with defecation. Other definitions require less specific damage. [citation needed]
A neonatal intensive care unit (NICU), also known as an intensive care nursery (ICN), is an intensive care unit (ICU) specializing in the care of ill or premature newborn infants. The NICU is divided into several areas, including a critical care area for babies who require close monitoring and intervention, an intermediate care area for infants ...
The average hospital costs from 2003 to 2011 for the maternal and neonatal surgical services were the lowest hospital costs in the U.S. [16] In 2012, maternal or neonatal hospital stays constituted the largest proportion of hospitalizations among infants, adults aged 18–44, and those covered by Medicaid. [17]
Neonatal hypoglycemia; Mortality. An infant being immunized in Bangladesh. Infant mortality is the death of an infant in the first year of life, often expressed as ...