USMLE Step 2 CK-OB/GYN Exam Study Questions 2022/23 COMPLETE SOLUTION

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What is Nagele's rule? - ✔✔due date = LMP + 9 months + seven days What is developmental age? - ✔✔number of weeks and days since fertilization. typically used only in research, as the exact d... ate of fertilization is not commonly known What is gestational age? - ✔✔number of wks and days measured from the first day of the LMP. How else can gestational age be determined? - ✔✔Fundal height: at 20wks, uterus is at the umbilicus and grows approx 1 cm/wk Quickening, or appreciation of fetal movt: typically occurs at 17-18 wks Fetal heart tones: can be heard at 10-12 wks by Doppler Ultrasound: measures fetal crown-rump length (CRL) at 5-12wks and measured biparietal diameter (BPD), femur length (FL), and abd circumference (AC) from 13 wks. U/S measurement of GA is most reliable during the first trimester How does renal flow change in pregnancy? - ✔✔increases 25-50% How does glomerular filtration rate change in pregnancy? - ✔✔increases early, then plateaus How does uterine weight change in pregnancy? - ✔✔increases from about 60-70g to about 900-1200g How does body weight change in pregnancy? - ✔✔average 11kg (25lb) increase [Show More]

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