Progesterone

Keywords: Prog, P4, 17 OH

Specimen:

5 mL blood in plain or lithium heparin tube.

Method:

Immunoassay.

Reference Interval:

Method dependent, typically:

Follicular phase: 2.0-4.5 nmol/L

Luteal phase: 7.0-70.0 nmol/L

Application:

Investigation of infertility.

Interpretation:

Failure of progesterone levels to increase in the latter part of the menstrual cycle indicates an anovulatory cycle or corpus luteum inadequacy.

Reference:

Butt WR and Blunt SM. Ann Clin Biochem 1988; 25: 601-609.