The level of AFP in the blood is used in a maternal serum triple or quadruple screening test. Generally done between 15 and 20 weeks, these tests check the levels of three or four substances in a pregnant woman's blood.n alpha-fetoprotein (AFP) blood test checks the level of AFP in a pregnant woman's blood. AFP is a substance made in the liver of an unborn baby (fetus).
Common mirtazapine side effects include: 1  drowsiness, dizziness; 2  strange dreams; 3  vision changes; 4  dry mouth; 5  constipation; 6  increased appetite; or. 7  weight gain.
Mirtazapine's actions on other types of receptors may cause some of its side effects, such as drowsiness or low blood pressure.Certain receptors decrease the levels of serotonin and norepinephrine released by the nerves. Mirtazapine blocks these inhibitory receptors, causing more to be released.irtazapine's actions on other types of receptors may cause some of its side effects, such as drowsiness or low blood pressure.