Final answer:
Gestational hypertension is characterized by high blood pressure during pregnancy after the 20th week, which is caused by insufficient blood supply to the placenta. The reduced blood flow can lead to complications such as intrauterine growth restriction (IUGR) and low birth weight.
Step-by-step explanation:
In gestational hypertension, the pathophysiological events involve insufficient blood supply to the placenta. This condition is characterized by high blood pressure during pregnancy, typically after the 20th week. The reduced blood flow to the placenta can lead to complications such as intrauterine growth restriction (IUGR) and low birth weight.
When the blood supply to the placenta is insufficient, the fetus may not receive enough oxygen and nutrients for normal development. This can result in IUGR, where the baby's growth is restricted in the womb. Additionally, the reduced blood flow can lead to low birth weight, which may increase the risk of complications after birth.
In summary, the pathophysiological events in gestational hypertension involve insufficient blood supply to the placenta, leading to complications such as IUGR and low birth weight.