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Some routine lab tests are done on all pregnant women at different times
during the pregnancy. Other tests are done for a specific indication.
As early in pregnancy as feasible, obtain:
 Subsequent lab tests consists of:
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Amniocentesis or CVS for women age 35 at 10-17 weeks
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Maternal serum AFP at 16-18 weeks
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Hemoglobin or
hematocrit at 28 weeks
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Serum glucose at 1-hour post 50g glucose load at 28 weeks
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Administration of Rhogam to Rh negative women
Other tests may be indicated, based on individual risk factors. These
might include screening for Sickle Cell disease (or trait), thalassemia,
G6PD, tuberculosis.
Follow-up tests may also be needed, based on the
original screen. For example, a woman found to be very anemic might be
evaluated with serum folate and
ferritin levels. A woman failing her
glucose screening test will probably need a full glucose tolerance test.
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