Table 3 Laboratory measures
Laboratory measure | Timing | Aim | Performed by |
|---|---|---|---|
Complete blood count | At baseline, every 12 months post initiation of supplementation, and at pregnancy confirmation. | Anemia | Laboratory of study clinic |
Pregnancy test | Whenever menstrual delay of 14 days or more is detected | Pregnancy | Laboratory of study clinic or an outside affiliated laboratory |
Folate analysis | At baseline, every 12 months post initiation of supplementation, and at pregnancy confirmation. | Measure serum/red cell folate concentration | Laboratory of study clinic or an outside affiliated laboratory |
Vitamin B12 analysis | At baseline and every 12 months thereafter | Detect pernicious anemia | Laboratory of study clinic or an outside affiliated laboratory |