Is a progesterone level of 4.180 nmol/L normal?

In general, whether a progesterone level of 4.180 nmol/L is normal depends on the stage of pregnancy at the time of testing. The specific analysis is as follows:

If the test is performed during early pregnancy, a progesterone level of 4.180 nmol/L falls within the low range. In early pregnancy, progesterone is primarily secreted by the corpus luteum, and normal levels are typically higher to support embryo implantation and development. Low levels may increase the risk of poor embryonic development or miscarriage. It is important to combine ultrasound examinations to monitor embryonic development and promptly consult with a doctor for evaluation.

If the test is conducted when not pregnant, or during the middle to late stages of pregnancy, a progesterone level of 4.180 nmol/L may fall within the normal range. In non-pregnant women, progesterone levels fluctuate with the menstrual cycle and are naturally lower during the follicular phase. During mid to late pregnancy, progesterone is mainly produced by the placenta, and levels vary with gestational age. Interpretation should therefore consider the specific stage of pregnancy and associated symptoms.

After testing, promptly provide the results to your doctor for professional interpretation based on gestational age and medical history. Avoid self-diagnosing or becoming anxious based solely on a single value. If progesterone supplementation is needed, strictly follow the doctor’s instructions for medication. During this period, ensure adequate rest, avoid strenuous activities, maintain emotional stability, and schedule regular follow-up tests for progesterone and related indicators.