A 34-year-old G3P2 at 20 weeks’ gestation presents to the A&E (E.R.) department of your tertiary care center with a three-hour history of nausea and vomiting associated with recurrent right upper quadrant pain, no longer alleviated by analgesics.

A 30-year-old primigravida with schizophrenia is referred by her primary care provider to your high-risk obstetrics unit at a tertiary center. Her mental illness is controlled by clozapine, and she takes routine prenatal vitamins. The patient is at 12+2 weeks’ gestation by dating sonography; first-trimester fetal anatomy was normal with a low risk of aneuploidy. Results of routine prenatal investigations are unremarkable. The patient does not have any obstetric complaints.

A 38-year-old primigravida is a recipient of a renal transplant. She is referred by her primary care provider for consultation and prenatal care of a spontaneous pregnancy at 10 weeks’ gestation by dating sonogram. She takes prenatal vitamins and has no obstetric complaints.

A 29-year-old primigravida is a recipient of a liver transplant. She is referred by her primary care provider to your high-risk obstetrics clinic for consultation and prenatal care of a spontaneous intrauterine singleton pregnancy at 12+0 weeks’ gestation by dating sonogram. The patient takes prenatal vitamins and has no obstetric complaints.