Repeated USMLE Questions- Obstetrics and Genecology MCQs- 2

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Q- Which of the following is the most likely cause of spontaneous abortion in the first trimester?

A- Chromosomal abnormalities

B- Congenital infection

C- Maternal drug use

D- Toxemia of pregnancy

A- Chromosomal abnormalities- Fetal abnormalities are the most common in the first trimester while maternal problems usually cause abortion in the second and third trimesters.



Q- Which of the following conditions may occur as a result of a long umbilical cord?

A- Abruptio placenta

B- Amnion nodosum

C- Nuchal cord

D- Placenta previa

C- Nuchal cord- It is usually discovered during delivery When the cord  wraps around the fetus. It causes very rare complications such as compromised blood supply to the fetus.



Q- Which of the following is most likely associated with normal vaginal delivery after a previous cesarean section (CS)?

A- Previous CS is performed due to arrest of cervical dilation

B- Previous CS is performed due to breech presentation

C- Previous CS is performed due to prolonged second stage

D- Previous CS is performed due to unknown cause

B- Previous CS is performed due to breech presentation- Successful vaginal delivery occurs in about 85% in cases of previous CS due to breech presentation.



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2 thoughts on “Repeated USMLE Questions- Obstetrics and Genecology MCQs- 2”

  1. Thank you

  2. Answer c

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