The drug of choice for treatment of gonorrhea is:

Choice A reason: Vascular volume increases during pregnancy to meet the increased oxygen and nutrient demands of the fetus, not to compensate for decreased renal plasma flow. In fact, renal plasma flow increases by 50% to 80% during pregnancy to facilitate the excretion of metabolic wastes.

Choice B reason: Vascular volume increases during pregnancy to ensure adequate blood supply to the uterus and other organs, not to prevent maternal and fetal dehydration. Dehydration can occur due to vomiting, diarrhea, or inadequate fluid intake, and it can be prevented by drinking enough fluids and replacing electrolytes.

Choice C reason: Vascular volume increases during pregnancy to provide adequate perfusion of the placenta, which is the main organ of gas exchange and nutrient delivery for the fetus. The placenta receives about 10% of the maternal cardiac output at term.

Choice D reason: Vascular volume increases during pregnancy to support the growth and development of the fetus and the maternal tissues, not to eliminate metabolic wastes of the mother. Metabolic wastes are eliminated by the kidneys, lungs, skin, and gastrointestinal tract.

Choice A reason: Quickening is the first perception of fetal movement by the pregnant woman, usually felt between 16 and 20 weeks of gestation. However, quickening can also be confused with gas or peristalsis, which are normal digestive processes that cause sensations in the abdomen.

Choice B reason: Chadwick sign is a bluish discoloration of the cervix, vagina, and vulva due to increased blood flow during pregnancy. It can be observed by the examiner as early as 6 weeks of gestation. However, Chadwick sign can also be caused by pelvic congestion, which is a chronic condition of enlarged and dilated veins in the pelvis².

Choice C reason: Amenorrhea is the absence of menstrual periods, which is one of the most common signs of pregnancy. However, amenorrhea can also be caused by stress, endocrine problems, or other factors that affect the hormonal balance and ovulation.

Choice D reason: Goodell sign is the softening of the cervix due to increased vascularity and edema during pregnancy. It can be palpated by the examiner around 6 to 8 weeks of gestation. Goodell sign is not associated with any other condition besides pregnancy, unlike cervical polyps, which are benign growths of the cervical tissue that can cause bleeding or discharge.