The nurse, working in labor and delivery, performs a sterile vaginal exam on a laboring woman. During the exam, she feels a loop of pulsating cord in the vagina. The nurse would anticipate:
Select one:

Choice A Reason: Physiologic anemia due to maternal increased plasma volume. This is an incorrect answer that refers to a different condition that affects hemoglobin levels, not blood pressure. Physiologic anemia is a condition where the maternal plasma volume increases more than the red blood cell mass during pregnancy, which dilutes the hemoglobin concentration and lowers the hematocrit value. Physiologic anemia does not cause significant symptoms or complications in pregnant women, as it is an adaptive mechanism that enhances oxygen delivery and prevents fluid overload.

Choice B Reason: Pressure of the gravid uterus on the maternal inferior vena cava and aorta. This is because this statement explains the cause of supine hypotensive syndrome, which is a condition where lying flat on the back causes compression of the major blood vessels by the gravid uterus, which reduces venous return and cardiac output, which lowers blood pressure and perfusion to vital organs. Supine hypotensive syndrome can cause symptoms such as dizziness, lightheadedness, nausea, pallor, or syncope in pregnant women, especially in the third trimester.

Choice C Reason: Pressure of the presenting fetal part on the maternal diaphragm. This is an incorrect answer that indicates a different condition that affects respiratory function, not blood pressure. Pressure of the presenting fetal part on the maternal diaphragm is a result of cephalic engagement or lightening, which occurs when the fetal head descends into the pelvis and occupies more space in the abdominal cavity. Pressure of the presenting fetal part on the maternal diaphragm can cause symptoms such as dyspnea, heartburn, or rib pain in pregnant women.

Choice D Reason: A 50% increase in maternal blood volume during pregnancy. This is an incorrect answer that describes a normal physiological change that occurs during pregnancy, not a cause of supine hypotensive syndrome. A 50% increase in maternal blood volume during pregnancy is due to increased production of plasma and red blood cells, which helps meet the increased oxygen and nutrient demands of the fetus and placenta, and prepares the mother for blood loss during delivery. A 50% increase in maternal blood volume during pregnancy does not cause hypotension or dizziness in pregnant women.

Choice A Reason: 3-2-1-0-2. This is an incorrect answer that underestimates the number of pregnancies and overestimates the number of preterm births. The client has had four pregnancies, not three. She has had one preterm birth, not two.

Choice B Reason: 4-1-1-1-3. This is an incorrect answer that overestimates the number of living children. The client has two living children, not three.

Choice C Reason 4-1-1-1-2. This is because the GTPAL method is a way of summarizing a woman's obstetric history using five numbers: G (gravida), T (term births), P (preterm births), A (abortions), and L (living children). Gravida is the number of pregnancies, regardless of outcome. Term births are deliveries after 37 weeks' gestation. Preterm births are deliveries between 20 and 37 weeks' gestation. Abortions are pregnancies that end before 20 weeks' gestation, either spontaneously or electively. Living children are the number of children who are alive at the time of assessment.

Choice D Reason: 4-1-2-0-3. This is an incorrect answer that overestimates the number of preterm births and living children, and underestimates the number of abortions. The client has had one preterm birth, not two. She has had one abortion, not zero. She has two living children, not three.