The six sex hormone tests mainly contain estrogen, progesterone, luteinizing hormone, follicle stimulating hormone, lactogen and androgen. The names of the hormones are not usually written directly on the test sheets, but are replaced with some abbreviated letters. The abbreviation for estrogen is the capital letter E. On many labs, it is written as E and represented by the number 2 below, which is estradiol, which is the patient’s estrogen level. Progesterone is abbreviated with a capital P, luteinizing hormone is abbreviated with a capital LH, follicle stimulating hormone is abbreviated with a capital FSH, lactogen is abbreviated with a capital PRL, and androgen is abbreviated with a capital T.