Estradiol — lab reference
In the reference guideFemale cycle-phase detail is on the next section. LC-MS/MS is preferred at low concentrations.
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What’s searchable?Female cycle-phase detail is on the next section. LC-MS/MS is preferred at low concentrations.
Ranges vary across the follicular phase and by assay.
Interpret with cycle timing and ovulation status.
Method-dependent; LC-MS/MS is preferred at very low values.
Interpret with testosterone or estradiol, FSH, cycle phase, and pituitary context.
Interpret with age, ovarian status, testosterone/estradiol, and pituitary context.
Interpret with estradiol, age, and cycle day.
Lab-specific. Interpret with symptoms, medication effects, and differential.
Altitude, smoking, hydration, androgen therapy, and pregnancy may shift values.
Consider altitude and iron/B12/folate status. Pregnancy requires trimester-specific ranges.
Hydration and altitude are major modifiers. Review alongside hemoglobin and RBC indices.
Macrocytosis and microcytosis require cause-specific interpretation.
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