meconium-stained amniotic fluid
Also written as: MSAF — Meconium-Stained Amniotic Fluid
Amniotic fluid discolored by fetal meconium passage, indicating potential fetal distress and risk of aspiration complications.
Full Definition
Meconium-stained amniotic fluid (MSAF) occurs when a fetus passes meconium (first bowel movement) while still in the uterus, causing the amniotic fluid to appear green, yellow, or brown. This finding may indicate fetal hypoxia or stress, particularly in term or post-term pregnancies. The presence of MSAF increases the risk of meconium aspiration syndrome if the infant inhales the contaminated fluid during delivery. Clinical management includes immediate suctioning at delivery, close monitoring for respiratory distress, and potential antibiotic therapy. Documentation should note the consistency and amount of meconium present.
Usage
Usage note: Always hyphenate the compound modifier. Specify consistency (thick vs. thin) as this affects clinical management.
In Context
- "Thick meconium-stained amniotic fluid was noted upon rupture of membranes, necessitating pediatric presence at delivery." — Labor and delivery note
- "The presence of meconium-stained amniotic fluid prompted immediate tracheal suctioning before the first breath." — Delivery room procedure note