How much self-employment tax will I pay? Self employment taxes are comprised of two parts: Social Security and Medicare. You will pay 6.2 percent and your employer will pay Social Security taxes of 6.2 percent on the first $127,200 of your covered wages. You each also pay Medicare taxes of 1.45 percent on all your wages - no limit.
Blood or protein in the urine may cause false-positive pregnancy results. Urine hCG tests may give a false-negative result if the urine is too diluted or if testing is done too soon in the pregnancy. Certain drugs such as diuretics and promethazine (an antihistamine) may cause false-negative urine results.
Pregnancy blood tests, also known as pregnancy serum tests, are created to measure the amount of human chorionic gonadotropin, or hCG, in the bloodstream to determine if a woman is pregnant. Within 10 days of fertilization, this hormone will be evident in the bloodstream, as the placenta will begin releasing it almost immediately after conception. There are two primary pregnancy blood tests.