You should get a blood test for PCOS to rule out conditions that mimic the symptoms of PCOS. For example, blood tests will be ordered to determine if you have thyroid gland tumors or adrenal tumors. In addition, doctors may perform blood tests to look for symptoms of hypothyroidism, a condition where your thyroid gland does not produce enough thyroid hormone, which can cause depression and fatigue. Other tests, such as cholesterol levels and blood sugar levels, may be required to determine if you have ovarian cysts. Women who take birth control pills may be especially interested in a pelvic ultrasound to detect ovarian cysts.
Glucose levels are normal in women with PCOS
Approximately five to six million women in the United States have PCOS. Symptoms may include increased weight, high blood pressure, or abnormal ultrasound scans. According to NICE guidelines, physicians should also test women with PCOS for type 2 diabetes. Insulin resistance and excess weight are common causes of PCOS. High insulin levels may cause the ovaries to produce too much testosterone, impairing normal ovulation.
A blood test for diabetes and PCOS is generally performed after a clinical workup. A blood test for glucose and cholesterol levels are the best ways to diagnose diabetes and prediabetes, although a fasting glucose level may be normal in women with both conditions. Sleep apnea is also a common sign of PCOS, so sleep studies are recommended by many clinicians. Some women with severe hirsutism or excessive hair growth may also undergo blood tests for testosterone and dehydroepiandrosterone sulfate.
LH and FSH levels are normal in women with PCOS
Women with PCOS have higher levels of LH and FSH than women without the condition. This is because their ovaries do not release the right amounts of these hormones during ovulation. Women with PCOS may have both high and low LH and FSH levels, but the proportion between the two hormones is higher than normal. As a result, ovulation is a challenge.
The combination of FSH and LH stimulates ovarian follicle growth and steroidogenesis, the process that turns androgens into oestrogens. The LH and FSH ratios are usually one to one. However, the ratio may be 2:1 or 3:1 in women with PCOS. During menopause, the levels of FSH and LH can remain at pre-menopause levels.
hCG test helps rule out pregnancy
If a woman has a high HCG level, the hCG test may help rule out pregnancy for Pcos. The HCG level gradually increases during pregnancy. However, the results of the hCG test may not be conclusive until a week or two after ovulation. Depending on the amount of HCG in a woman’s body, she may want to retest for pregnancy a few days later.
In some cases, women with PCOS may have low levels of hCG, which can lead to false-negative results on pregnancy tests. Women should avoid pregnancy tests that claim to detect pregnancy six days before a missed period. Those tests are likely to give false negative results. However, the results of a test that detects pregnancy after implantation bleeding can be helpful in establishing the diagnosis of PCOS.
DHEA-Sulphate test helps rule out PCOS
If you have irregular or no periods, you should be tested for PCOS. This condition can cause a variety of symptoms. While you might not have all of the symptoms to be diagnosed with PCOS, the symptoms are consistent for a few days. In addition, the symptoms can vary at different stages of life, making the DHEA-Sulphate test helpful for a variety of reasons.
A DHEA-Sulphate test may help rule out PCOS in children who are intersex, meaning that their reproductive anatomy is not binary. In male children, high levels of DHEA-S may cause early puberty. Low levels of DHEA-S can lead to sexual dysfunction in men and women. However, the test requires a blood draw and is not always available at all labs.