meconium


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Related to meconium: meconium ileus, meconium aspiration, meconium staining, Meconium Stained Amniotic Fluid

meconium

 [mĕ-ko´ne-um]
dark green mucilaginous material in the intestine of the full-term fetus; this is the first type of feces passed by the newborn infant.

me·co·ni·um

(mē-kō'nē-ŭm),
1. The first intestinal discharges of the newborn infant, greenish in color and consisting of epithelial cells, mucus, and bile.
2. Synonym(s): opium
[L., fr. G. mēkōnion, dim. of mēkōn, poppy]

meconium

/me·co·ni·um/ (mĭ-ko´ne-um) dark green mucilaginous material in the intestine of the full-term fetus.

meconium

(mĭ-kō′nē-əm)
n.
A dark green fecal material that accumulates in the fetal intestines and is discharged at or near the time of birth.

meconium

[mikō′nē·əm]
Etymology: Gk, mekon, poppy
a material that collects in the intestines of a fetus and forms the first stools of a newborn. It is thick and sticky, usually greenish to black, and composed of secretions of the intestinal glands, some amniotic fluid, and intrauterine debris, such as bile pigments, fatty acids, epithelial cells, mucus, lanugo, and blood. With ingestion of breast milk or formula and proper functioning of the GI tract, the color, consistency, and frequency of the stools change by the third or fourth day after the initiation of feedings. The presence of meconium in the amniotic fluid during labor may indicate fetal distress and may lead to a lack of oxygen and developmental delays.
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Meconium

meconium

(1) The black-green viscid stool of the neonate.
(2) An obsolete synonym for opium, see there.

meconium

A dark green viscid glue-like material found in the intestine of all neonates; it is the first stool passed by the newborns and is passed in the first 24-48 hrs of life; prenatal passage of meconium may indicate fetal distress

me·co·ni·um

(mē-kō'nē-ŭm)
The greenish first intestinal discharges of the newborn infant, consisting of epithelial cells, mucus, and bile.
[L., fr. G. mēkōnion, dim. of mēkōn, poppy]

meconium

The thick, greenish-black, sticky stools passed by a baby during the first day or two of life, or before birth if the fetus is deprived of an adequate oxygen supply (fetal distress). Meconium consists of cells from the lining of the fetal bowel, bowel mucus and bile from the liver. Once feeding is established meconium is replaced by normal stools.

meconium

the gut contents of a mammalian foetus, formed of swallowed amniotic fluid and the secretion of glands into the gut.

Meconium

The first waste products to be discharged from the body in a newborn infant, usually greenish in color and consisting of mucus, bile and so forth.

meconium

yellow-orange mucilaginous material in the intestine of the full-term fetus; it constitutes the first stools passed by the newborn.

meconium aspiration
aspiration of fragments of meconium into the pulmonary airways occurs in the fetus in the terminal stages of many infections.
meconium ileus
intestinal obstruction in the newborn due to the blocking of the bowels with thick meconium. This is an important disease of newborn colt foals. The syndrome is usually one of subacute abdominal pain, restlessness and straining, and a positive finding on rectal examination. Occasional cases show severe pain and tympany of the large intestine. Called also meconium retention.
meconium retention
see meconium ileus (above). See also impaction colic.
References in periodicals archive ?
Passage of the meconium through the patent processus vaginalis may result in MPO and the mass-like lesion arises because of an inflammatory reaction from meconium within the scrotal sac.
The Maternal Lifestyle Study: Drug use by meconium toxicology and maternal self-report.
Specifically, the position of the Neonatal Resuscitation Program of the American Academy of Pediatrics for care of the infant born through meconium has evolved.
3) Accordingly, the radiological spectra range from the incidental demonstration of diffuse intra-abdominal calcifications to meconium ascites (free meconium in the peritoneal cavity), meconium pseudocysts (walled-off meconium concentrations), and meconium hydrocoeles.
After birth, meconium samples were collected from soiled diapers twice daily until the appearance of milk stool.
Second, GC- and LC-MS/ MS (gas- and liquid chromatography/ mass spectrometry/mass) tests have been developed to test for ethanol metabolites in hair and meconium in order to screen for alcohol abuse during pregnancy.
She said when the baby was delivered she had meconium, a sticky substance which is a baby's first stool, coming out of her nose and mouth.
He had a low birth weight and meconium at delivery.
When he was born, Arthur suffered from meconium aspiration syndrome - a condition caused when babies swallow a mixture of their first bowel movements and the fluids in the womb.
With babies, the same substances can also be measured in meconium, and exposure can be traced to as early as 14 weeks' gestation, when meconium begins to form.
Biochemistry 2004; 37:429-38) that discussed hair and meconium testing to confirm the prenatal use of alcohol and tobacco.