A woman who is 8 months pregnant is brought to the emergency department after a serious motor vehicle crash. Although she has no apparent injuries, she is admitted to the hospital for observation for which complication?

Choice A: This is incorrect because preeclampsia is a condition characterized by hypertension, proteinuria, and edema that occurs after 20 weeks of gestation. It is not related to abruptio placentae, which is the premature separation of the placenta from the uterine wall. Preeclampsia does not cause petechiae or bleeding around the IV site, but it may cause headache, blurred vision, epigastric pain, or seizures.

Choice B: This is incorrect because anaphylactoid syndrome of pregnancy, also known as amniotic fluid embolism, is a rare and life-threatening complication that occurs when amniotic fluid enters the maternal circulation and triggers an allergic reaction. It is not related to abruptio placentae, but it may occur during labor, delivery, or shortly after birth. Anaphylactoid syndrome of pregnancy does not cause petechiae or bleeding around the IV site, but it may cause respiratory distress, hypotension, cardiac arrest, or disseminated intravascular coagulation.

Choice C: This is the correct answer because disseminated intravascular coagulation (DIC) is a condition in which the blood clotting system is activated abnormally, leading to excessive clot formation and consumption of clotting factors and platelets. This results in bleeding from various sites, such as the IV site, gums, nose, or vagina. DIC is a common complication of abruptio placentae, as the release of thromboplastin from the placenta triggers the clotting cascade. DIC can also cause organ failure, shock, or death if not treated promptly.

Choice D: This is incorrect because puerperal infection, also known as postpartum infection, is a bacterial infection that affects the uterus, vagina, bladder, or wound site after childbirth. It is not related to abruptio placentae, but it may occur due to prolonged labor, cesarean delivery, retained placenta, or poor hygiene. Puerperal infection does not cause petechiae or bleeding around the IV site, but it may cause fever, malaise, foul-smelling lochia, or pelvic pain.

Choice A) Maternal blood type is correct because this is an essential and relevant information for the nurse to check for a woman who has had a first trimester spontaneous abortion. Spontaneous abortion, also known as miscarriage, is the loss of pregnancy before 20 weeks of gestation. It can be caused by various factors such as chromosomal abnormalities, infections, trauma, or hormonal imbalances. Maternal blood type is the classification of blood based on the presence or absence of antigens and antibodies on the red blood cells and plasma. The most common blood types are A, B, AB, and O, and each can be positive or negative for the Rh factor. Checking maternal blood type can help to identify and prevent Rh incompatibility, which is a condition that occurs when the mother has Rh-negative blood and the fetus has Rh-positive blood. This can cause the mother's immune system to produce antibodies that attack the fetal red blood cells, leading to hemolytic disease of the fetus and newborn (HDFN), which can cause anemia, jaundice, or death. To prevent this, the nurse should administer Rh immunoglobulin (RhoGAM) to the mother within 72 hours after a spontaneous abortion or any event that may cause mixing of maternal and fetal blood. Therefore, this information is vital and appropriate for the nurse to check.

Choice B) Past obstetric history is incorrect because this is not an essential or urgent information for the nurse to check for a woman who has had a first trimester spontaneous abortion. Past obstetric history is the record of previous pregnancies and their outcomes, such as number, duration, complications, or interventions. It can provide useful information for assessing the risk factors and health status of the current pregnancy. However, it does not have any immediate impact or implication for the management of a spontaneous abortion, which is a common and unpredictable event that affects about 10% to 20% of all pregnancies. Therefore, this information can be obtained later or from other sources by the nurse.

Choice C) Maternal varicella titer is incorrect because this is not a relevant or necessary information for the nurse to check for a woman who has had a first trimester spontaneous abortion. Varicella titer is a blood test that measures the level of antibodies against varicella-zoster virus (VZV), which causes chickenpox and shingles. It can indicate whether a person has immunity to VZV or needs vaccination. Checking maternal varicella titer may be important for pregnant women who have not had chickenpox or vaccination before, as VZV infection during pregnancy can cause congenital varicella syndrome (CVS), which can affect the development and function of various organs in the fetus. However, it does not relate to spontaneous abortion, which is not caused by VZV infection or immunity. Therefore, this information is irrelevant and unnecessary for the nurse to check.

Choice D) Cervical patency is incorrect because this is not a reliable or accurate information for the nurse to check for a woman who has had a first trimester spontaneous abortion. Cervical patency means how open or closed the cervix is, which can affect the progress and outcome of labor and delivery. The cervix is usually closed and firm during pregnancy, but it gradually softens, shortens, and dilates as labor approaches. Checking cervical patency can help to determine if labor has started or if there are any complications such as preterm labor or cervical incompetence.

However, it does not indicate if a spontaneous abortion has occurred or not, as the cervix may remain closed or partially open after a miscarriage. Moreover, checking cervical patency can be invasive and uncomfortable for the woman who has had a spontaneous abortion, and it may increase the risk of infection or bleeding. Therefore, this information should be checked only when indicated by the physician and with caution by the nurse.