Answer to Question 1
ANS: C
The fundus should be at the level of the umbilicus at 20 weeks of gestation, and it rises 1 cm per week until 32 weeks of gestation. False small-for-dates presentations may result from inaccurate LMP dates, varying menstrual cycle lengths, improper fundal height measurement, or a fetus in a transverse lie. False large-for-dates presentations may likewise be produced by inaccurate LMP dates, improper fundal height measurement, and a large amount of amniotic fluid as well as maternal obesity or short stature.
Answer to Question 2
ANS: B
Observational studies have demonstrated an association between bacterial vaginosis and certain adverse pregnancy outcomes, such as preterm labor, preterm delivery, premature rupture of membranes, and spontaneous abortions. Bacterial vaginosis can be treated with antibiotic therapy, but cure rates are erratic and recurrences are common. There is currently conflicting evidence on whether screening and treatment of asymptomatic bacterial vaginosis in high-risk pregnant women actually reduces the incidence of preterm delivery. The USPSTF therefore neither recommends nor discourages routinely screening these women (2008). However, the USPSTF does state that screening is not recommended in pregnant women at low risk for preterm delivery, but treatment is appropriate for symptomatic bacterial vaginosis infections (such as with patient complaints of vaginal discharge). Trichomoniasis is less common than other forms of infectious vaginitis during pregnancy, but vulvovaginal candidiasis occurs in 10 of women during the first trimester and in one-third to one-half of women during the third trimester (Rein & Liang, 1999).
Subjective
Inquire whether there have been multiple or new sexual partners, whether sexual activity has recently been resumed, whether there has been any recent douching or antibiotic use, or whether there is a history of abnormal Papanicolaou (Pap) smears. Further assessment should explore the presence of any vaginal discharge, perineal or vaginal sores or lesions, or UTI symptoms. Worrisome symptoms include excessive, malodorous, discolored, itchy, or irritating vaginal discharge; fever; abdominal pain; dysuria; or bleeding or pain after sexual intercourse.
Objective
The examination should begin with an inspection of the external genitalia. A pelvic examination should assess for vaginal discharge, signs of vaginal infections (including herpes), and any other vaginal or cervical abnormalities. A normal saline and potassium hydroxide test (wet mount) should be conducted from secretions of the vaginal pool to check for fungal organisms, trichomonas, clue cells, and bacteria. A gonorrhea and chlamydia specimen for culture should be obtained. A nitrazine test (done to evaluate a change in the pH) or fern test should be done to evaluate for a rupture of membranes. A Pap smear should be done if it has not been done previously in the initial obstetrical evaluation to assess for dysplasia, carcinoma, or human papillomavirus.