A pregnant woman who is HIV positive is taking zidovudine. She is very concerned about her infant ...

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Rationale 1: Testing can be done at birth if the mother is not taking zidovudine. If she is taking the medication, the test is not accurate.
Rationale 2: Tests become much more sensitive when the child reaches 2 weeks of age.
Rationale 3: Tests are repeated at 1 month of age.
Rationale 4: Infants are often retested at ages 6 and 12 months.
Rationale 5: A test at 1 week of age is not accurate in this patient's situation.

Global Rationale: Testing can be done at birth if the mother is not taking zidovudine. If she is taking the medication, the test is not accurate. Tests become much more sensitive when the child reaches 2 weeks of age. Tests are repeated at 1 month of age. Infants are often retested at ages 6 and 12 months. A test at 1 week of age is not accurate in this patient's situation.