Behavioral Emergencies: Special Considerations in the Pregnant Patient.

This article describes psychiatric emergencies in pregnant women. The perinatal period is a time of psychiatric vulnerability. Up to 1 in 6 pregnant women experience major depressive disorder, and 1 in 4 pregnant women with bipolar disorder experience mood exacerbation. We discuss the management of severe mental illness in pregnancy, risk to mother and child of untreated psychiatric illness in pregnancy, risk of relapse of psychiatric disorders in pregnancy with medication discontinuation, psychopharmacologic considerations of teratogenicity and other fetal adverse effects, acute agitation in the pregnant patient, suicidality in pregnancy, and emergency considerations related to substance use disorders.