1 White fence bracket made of durable, low-maintenance vinyl. 2  Use with 1 1/2 in. thick Veranda vinyl fence panels.  Use to attach vinyl fence panels to posts.
Late Decelerations (labor and delivery). A âdecelerationâ describes a decrease in the heart rate of the fetus from its baseline heartrate. âLate decelerationsâ are described as a transient decrease in the fetal heart rate occurring at or after the peak of a uterine contraction. Late decelerations may represent some degree of utero-placental insufficiency. All blood flow in and out of the intravillious space stops briefly during a contraction.
Late decelerations occur when a fall in the level of oxygen in the fetal blood triggers chemoreceptors in the fetus to cause reflex constriction of blood vessels in nonvital peripheral areas in order to divert more blood flow to vital organs such as the adrenal glands, heart, and brain.