Question 87 · LEK · Protozoal infections
A 25-year-old woman in 12th week of her first pregnancy made a test of antibodies against Toxoplasma gondii. The results were as follows: IgG = 300 IU/mL, IgM (-). A similar test performed 2 years earlier showed: IgG = 480 IU/mL, IgM (-). The patient should be informed that:
- A. there is a high risk of an infection with Toxoplasma gondii caused by the consumption of both raw meat and contaminated fruit and vegetables.
- B. she has to repeat the test of antibodies against T. gondii every 6-8 weeks during the whole pregnancy.
- C. she should undergo antiprotozoal treatment.
- D. she was infected with Toxoplasma gondii before the pregnancy (most probably it was a subclinical infection) and her child is not at risk of the infection.
- E. it is necessary to perform invasive diagnostics for the infection (amniocentesis, examination of the amniotic fluid for protozoan cysts).
Hint
Interpret a positive IgG with negative IgM that was already present two years before conception.
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