TEGO (FEBRASGO AMB) Practice Questions - Exame De Suficiência Para Obtenção Do Título De Especialista Em Ginecologia E Obstetrícia (TEGO - FEBRASGO AMB) Exam

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A 22-year-old pregnant woman presents at 9 weeks of gestation for her first prenatal visit. Serology for Toxoplasmosis reveals IgG positive (180 IU/mL) and IgM positive (Index 3.2). What is the next immediate and most appropriate step according to FEBRASGO protocols for maternal toxoplasmosis?

Reassure the patient that IgG positivity confirms long-standing immunity, requiring no further testing or follow-up. Immediately start Sulfadiazine, Pyrimethamine, and Folinic Acid and perform an emergency hysterotomy. Request an IgG Avidity Test (Teste de Avidez de IgG); if high avidity (> 60%) before 16 weeks, it indicates infection acquired prior to gestation, excluding acute congenital risk. Initiate termination of pregnancy, as maternal IgM positivity during the first trimester invariably leads to fetal hydrops.

Correct Answer:

Request an IgG Avidity Test (Teste de Avidez de IgG); if high avidity (> 60%) before 16 weeks, it indicates infection acquired prior to gestation, excluding acute congenital risk.

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