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Medical and Surgical Complications in Pregnancy

Question
45 out of 45
 

Perinatal transmission of hepatits B is maximum when infection in mother occurs in (DNB, Nov. 2008)



A 1st trimester
B 2nd trimester

C 3rd trimester
D Lactation

Ans. C

3rd trimester

1. Hepatitis B virus is transmitted by parentral route, sexual route, vertical transmission and also through breast milk the risk of transmission to fetus ranges from 10% in 1st trimester to 90% in 3rd trimester and it is especially high from those mothers who are seropositive to HbsAg and HbeAg.

2. All pregnant women should be screened for HBV at the first antenatal visit.

3. As incubation period of HBV is 1 to 6 mths it will take a long time to develop immunity in mother against HBV. Hence when the infection in mother occurs in 3rd trimester, only infection without immunity is transferred to fetus.

Medical and Surgical Complications in Pregnancy Flashcard List

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