Chapter 10: High-Risk Pregnancy Assessment

High-Risk Pregnancy Assessment categorizes risk factors into biophysical, psychosocial, sociodemographic, and environmental groups, highlighting how conditions like genetic disorders, inadequate nutrition, substance use, and socioeconomic barriers impact outcomes. A significant portion of the text is dedicated to antepartum monitoring techniques aimed at preventing fetal injury from oxygenation issues and avoiding unnecessary medical interventions. Methods discussed include maternal assessment of fetal activity, known as daily fetal movement counts or kick counts, and various forms of ultrasonography—ranging from standard abdominal scans to detailed three-dimensional imaging—used for dating, growth tracking, and identifying anatomical markers such as nuchal translucency. Advanced imaging like Magnetic Resonance Imaging (MRI) is also detailed for assessing complex fetal and maternal structures. The chapter outlines biochemical assessments, including amniocentesis for genetic testing and evaluating fetal lung maturity through the L/S ratio and lamellar body counts, as well as chorionic villus sampling (CVS) for early first-trimester diagnostics. Maternal serum screenings are emphasized, such as alpha-fetoprotein (AFP) for neural tube defects and the high-sensitivity cell-free DNA (cfDNA) screening for chromosomal trisomies. Electronic fetal monitoring is critically evaluated, explaining the procedure and interpretation of the Nonstress Test (NST), vibroacoustic stimulation, and the Contraction Stress Test (CST) to assess fetal reserve and response to stress. Furthermore, it defines amniotic fluid abnormalities like polyhydramnios and oligohydramnios (where the vertical pocket is lesser than 2 cm) and explains the scoring of the Biophysical Profile (BPP). Throughout, the role of the nurse is emphasized as vital for patient education, emotional support, and the coordination of interprofessional care to mitigate the psychological stress and sense of vulnerability often associated with a high-risk diagnosis.