The perinatal nurse describes risk factors for placenta previa to the student nurse. Placenta previa risk factors include (select all that apply):
a. Cocaine use
b. Tobacco use
c. Previous caesarean birth
d. Previous use of medroxyprogesterone (Depo-Provera)
ANS: a, b, c
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a. Placenta previa may be associated with risk factors including smoking, cocaine use, a prior history of placenta previa, closely spaced pregnancies, African or Asian ethnicity, and maternal age greater than 35 years.
b. Placenta previa may be associated with risk factors including smoking, cocaine use, a prior history of placenta previa, closely spaced pregnancies, African or Asian ethnicity, and maternal age greater than 35 years.
c. Placenta previa may be associated with conditions that cause scarring of the uterus such as a prior cesarean section, multiparity, or increased maternal age.
d. Previous use of medroxyprogesterone (Depo-Provera) is not a risk factor for placenta previa.
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