Mid-luteal serum progesterone blood test
mid-luteal phase of their cycle (day 21 of a 28-day cycle)
tests per year, UK, once per investigation, day 21 of a 28-day cycle
“a blood test to measure serum progesterone in the mid-luteal phase of their cycle (day 21 of a 28-day cycle) to confirm ovulation even if they have regular menstrual cycles.”
NICE NG257 Fertility problems, investigation of fertility problems, 2026-11-06
- Kind of source
- Clinical guideline
- Read on
- 2026-11-06
- Daily check
- Quote found at the source on 2026-11-06
- What to know
- Confirms ovulation.
Used in
Kept as evidence; no figure on the platform is computed from it yet.