The symptoms of pericarditis depend on the type, but may include: 1  high temperature. 2  sweating and chills. 3  breathing problems, such as breathlessness. 4  dry cough. 5  abnormal heart rhythms, such as accelerated heartbeat (tachycardia) 6  sharp and stabbing chest pains. 7  pain radiating into the left shoulder and arm.
Pathophysiology. Rupture of the membranes is the most common cause of oligohydramnios. However, because the amniotic fluid is primarily fetal urine in the latter half of the pregnancy, the absence of fetal urine production or a blockage in the fetus' urinary tract can also result in oligohydramnios.
Doctors can tell from the amount of amniotic fluid present whether or not a baby has a problem with their swallowing reflex; Oligohydramnios refers to when amniotic fluid levels are too low; Polyhydramnios refers to when amniotic fluid levels are too high; Doctors can alter the levels of fluid within the uterus with a variety of procedures.