MATERNITY [OB] HESI PN BOOK A+ graded latest complete update

what is the average age for the first menarche? - ans 12.87 years old or 1-3 years after breast budding Normal cycle length - ans 21-45 days When can pregnancy first occur? - ans pregnancy can first occur from the very first menstrual cycle, a sexually active girl may conceive before her first menstrual cycle. menarche - ans first menstrual period when do most women have a ovulatory cycle? - ans within 24 months after menarche menstrual phase - ans days 1-5. shedding of endometrium. uterine bleeding approx. 60mL (LESS THAN 2 OZ) How long is the menstrual phase? - ans varies in length but usually last 2-8 days. Proliferation (follicular) phase - ans day 5 to ovulation begins the first day of menstruation. ends 14 day later in a 28-day cycle ovulatory phase - ans final maturation of a single follicle, it releases its mature ovum. ovulation marks the beginning of the luteal phase - occurs about 14 days into the menstrual cycle. luteal phase - ans begins immediately after ovulation, ends w/ menstruation. if no implantation occurs, the corpus lute regresses. estrogen + progesterone levels DECREASE. endometrium sheds via menstruation. Endometrial cycle - ans menstrual phase: periodic vasoconstriction in upper levels of endometrium initiates shedding of functional 2/3 of endometrium. When does ovulation occur? - ans 14 days before menstruation when are the most fertile days for pregnancy? - ans day before ovulation and day of ovulation. when does the fertile period begin? - ans 4 to 5 days before ovulation when does the fertile period end? - ans 24-48 hours after ovulation. when should a couple avoid sex to avoid pregnancy? - ans avoid sex several days before ovulation and 3 days after ovulation. how long can sperm live in a woman's body? - ans 4-5 days How long do eggs live? - ans 24-48 hours after being released. Indications of ovulation - ans Slight drop in temperature 1 day before ovulation (0.5 to 1 degree rise at ovulation), temperature will remain elevated for 10-12 days. cervical mucus = abundant, watery, clear + more alkaline. cerival os = dilates slightly, softens + rises in vagina. spinn barkeit ferrying under microscope