Progesterone Test

The progesterone test is a blood test used to measure the level of progesterone in the blood. Progesterone is a hormone produced by the ovaries in women and plays a crucial role in the menstrual cycle and pregnancy.

Purpose of the Test

The progesterone test is used for several purposes, including:

• Diagnosing infertility or irregular menstrual cycles in women
• Evaluating the effectiveness of fertility treatments, such as in vitro fertilization (IVF)
• Monitoring pregnancy and detecting potential complications, such as miscarriage or ectopic pregnancy
• Checking for ovulation in women with irregular periods

How the Test is Performed

The progesterone test involves a simple blood draw from a vein in the arm. The blood sample is then sent to a laboratory for analysis.

Interpretation of Results

The results of the progesterone test are measured in nanograms per milliliter (ng/mL). Normal levels of progesterone vary depending on the stage of the menstrual cycle and pregnancy. In general:

• In women who are not pregnant, normal progesterone levels range from 0.2 to 1.5 ng/mL during the follicular phase and 5 to 20 ng/mL during the luteal phase
• In pregnant women, normal progesterone levels range from 10 to 40 ng/mL during the first trimester and 15 to 60 ng/mL during the second and third trimesters

Risks and Side Effects

The progesterone test is a relatively safe procedure with minimal risks and side effects. These may include:

• Pain or bruising at the injection site
• Dizziness or lightheadedness
• Infection (rare)

Preparation for the Test

No special preparation is required for the progesterone test. However, it is recommended that women avoid taking any hormonal medications or supplements before the test, as these may affect the results.