Progesterone, follicular — lab reference
In the reference guideCycle day and exogenous progesterone timing matter.
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What’s searchable?Cycle day and exogenous progesterone timing matter.
Female phase detail is on the next section. Exogenous progesterone route/timing matters.
Ranges vary across the follicular phase and by assay.
Wide physiologic variation.
Single values are pulse- and timing-sensitive; confirm the clinical question.
Exogenous hormone use changes interpretation.
Interpret with estradiol, age, and cycle day.
Interpret with cycle day and symptoms.
Female follicular <80; luteal <285; postmeno <51. Morning timing and stimulation testing may be needed.
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.
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