Pregnancy Diagnosis and Dating — Flashcards

Flashcard 1: Missed Abortion (Early Pregnancy Failure) is diagnosed on USG if: - CRL ≥ _____ mm and no heartbeat - Mean Sac Diameter (MSD) ≥ _____ mm and no embryo

Answer: 7; 25

Extra: Society of Radiologists in Ultrasound (SRU) criteria for early pregnancy failure: - Crown-rump length (CRL) of ≥ 7 mm and no heartbeat. - Mean sac diameter (MSD) of ≥ 25 mm and no embryo.

Flashcard 2: According to the **Rule of Haase**, during the **last five months** of pregnancy: \_\_\_\_\_ = age of the fetus in months

Answer: Crown-Heel Length (cm) / 5

Flashcard 3: Pregnancy tracker is started from _____ month of pregnancy, and each call is for 2 minutes

Answer: 4th

Flashcard 4: In most institutions, ultrasound should be able to detect an IUP at -hCG levels of _____ mIU/mL

Answer: 1500

Flashcard 5: _____ sonographic criteria is used for the diagnosis of a cesarean scar pregnancy

Answer: Godin's

Flashcard 6: The best time to identify the type of twin pregnancy is _____ weeks.

Answer: 11-14

Flashcard 7: Regular rhythmic contractions of uterus felt as early as 6-8 weeks: _____ sign

Answer: Palmer's

Flashcard 8: Human chorionic gonadotropin (hCG) is detectable in blood _____ week(s) after conception and on home test in urine 2 weeks after conception

Answer: 1

Flashcard 9: The double bleb sign in pregnancy is due to the _____ and _____ sac.

Answer: yolk sac

Flashcard 10: 2 doses of Td vaccine are given atleast _____ apart in pregnancy

Answer: 4 weeks

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