TY - CHAP M1 - Book, Section TI - Maternal Physiology A1 - Cunningham, F. Gary A1 - Leveno, Kenneth J. A1 - Dashe, Jodi S. A1 - Hoffman, Barbara L. A1 - Spong, Catherine Y. A1 - Casey, Brian M. PY - 2022 T2 - Williams Obstetrics, 26e AB - The anatomical, physiological, and biochemical adaptations of pregnancy are profound. Many gestational changes begin soon after fertilization and continue throughout pregnancy. Equally astounding is the almost complete return to the prepregnancy state after delivery and lactation. Most pregnancy-related changes are prompted by stimuli provided by the fetus and placenta. Virtually every organ system undergoes alterations, and these can appreciably modify criteria for disease diagnosis and treatment. Thus, an understanding of pregnancy adaptations is essential to avoid misinterpretation. Moreover, some normal physiological changes can unmask or worsen preexisting disease. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/29 UR - accessmedicine.mhmedical.com/content.aspx?aid=1199440003 ER -