More than 80 percent of spontaneous abortions occur in the first 12 weeks of pregnancy. What percent of these result from chromosomal anomalies?
Although most early pregnancy losses are clinically silent, approximately what percentage of all pregnancies are reportedly lost after implantation?
Which of the following chromosomal anomalies is most frequently identified with first-trimester abortion?
d. Balanced Robertsonian translocation
Maternal factors that contribute to euploid abortion include all EXCEPT which of the following?
c. Dietary nutrient deficiency
d. Poorly controlled diabetes mellitus
Although moderate caffeine consumption is unlikely to cause spontaneous abortion, studies consistently warn that use above what daily amount of caffeine increases the risk for miscarriage?
a. 200 mg (2 cups of coffee)
b. 300 mg (3 cups of coffee)
c. 400 mg (4 cups of coffee)
d. 500 mg (5 cups of coffee)
Up to what percentage of women experience vaginal spotting or bleeding during early gestation?
Approximately what percentage of pregnancies abort in women experiencing early gestational bleeding?