In a client's seventh month of pregnancy, she reports feeling "dizzy, like I'm going to pass out, when I lie down ﬂat on my back". The nurse explains that this is due to:
Select one:

Physiologic anemia due to maternal increased plasma volume.

Pressure of the gravid uterus on the maternal inferior vena cava and aorta.

Pressure of the presenting fetal part on the maternal diaphragm.

A 50% increase in maternal blood volume during pregnancy.

Answer and Explanation

The Correct Answer is B

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.

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Correct Answer is D

Explanation

Choice A Reason: Retained placental fragments. This is an incorrect answer that refers to a diﬀerent cause of late postpartum hemorrhage, which is less common than uterine atony. Retained placental fragments are pieces of placenta that remain atached to the uterine wall after delivery, which prevent uterine contraction and involution, and provide a source of bleeding and infection. Retained placental fragments can be caused by abnormal placentation (such as placenta accreta), manual removal of placenta, or incomplete separation of placenta.

Choice B Reason: Cervical or vaginal lacerations. This is an incorrect answer that refers to a diﬀerent cause of late postpartum hemorrhage, which is more likely to cause early postpartum hemorrhage than late postpartum hemorrhage. Cervical or vaginal lacerations are tears or cuts in the cervix or vagina that occur during delivery, which can cause bleeding from the damaged blood vessels. Cervical or vaginal lacerations can be caused by rapid or instrumental delivery, large or malpositioned fetus, or episiotomy.

Choice C Reason: Uterine inversion. This is an incorrect answer that refers to a diﬀerent cause of late postpartum hemorrhage, which is rare and life-threatening. Uterine inversion is a condition where the uterus turns inside out and protrudes through the cervix and vagina after delivery, which can cause massive bleeding and shock. Uterine inversion can be caused by excessive traction on the umbilical cord, fundal pressure, or uterine relaxation.

Choice D Reason: Uterine atony. This is because uterine atony is a condition where the uterus fails to contract and retract after delivery, which leads to bleeding from the placental site. Uterine atony is the most common cause of late postpartum hemorrhage, accounting for about 75% of cases. Late postpartum hemorrhage is excessive bleeding from the uterus or genital tract that occurs more than 24 hours but less than 12 weeks after delivery. Late postpartum hemorrhage can be caused by retained placental fragments, subinvolution of the uterus, infection, or coagulation disorders.

A. Macrosomic newborn. B. Intrauterine growth restriction (IUGR). C. Umbilical cord prolapse. D. Meconium Aspiration Syndrome (MAS).

Correct Answer is C

Explanation

Choice A Reason: Macrosomic newborn. This is a correct answer that describes a possible complication of post-term pregnancy. A macrosomic newborn is a newborn that weighs more than 4000 grams or 8 pounds 13 ounces at birth. It can occur in post-term pregnancies due to prolonged exposure to maternal glucose and insulin. It can increase the risk of birth injuries, shoulder dystocia, cesarean delivery, and hypoglycemia.

Choice B Reason: Intrauterine growth restriction (IUGR). This is a correct answer that indicates a potential problem of post-term pregnancy. IUGR is a condition where the fetal growth is slower than expected for gestational age. It can occur in post-term pregnancies due to placental insufficiency, aging, or calcification, which can impair nutrient and oxygen delivery to the fetus. It can increase the risk of fetal distress, hypoxia, acidosis, and stillbirth.

Choice C Reason: Umbilical cord prolapse. This is an incorrect answer that does not reﬂect a risk of post-term pregnancy, but rather a risk of other factors such as prematurity, low birth weight, breech presentation, multiple gestation, polyhydramnios, or artificial rupture of membranes.

Choice D Reason: Meconium Aspiration Syndrome (MAS). This is a correct answer that denotes a possible complication of post-term pregnancy. MAS occurs when fetal stool (meconium) enters into the lungs before or during birth, causing airway obstruction, inﬂammation, and infection. MAS usually aﬀects term or post-term infants who experience fetal distress or hypoxia in utero. It can cause respiratory distress syndrome (RDS), persistent pulmonary hypertension (PPHN), or chronic lung disease (CLD).

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In a client's seventh month of pregnancy, she reports feeling "dizzy, like I'm going to pass out, when I lie down ﬂat on my back". The nurse explains that this is due to: Select one:

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Naxlex Comprehensive Predictor Exams

When reviewing the causes of late postpartum hemorrhage, which of the following would the nurse identify as the most common cause? Select one:

Correct Answer is D

Explanation

Post-term fetal risks include all of the following, EXCEPT: Select one:

Correct Answer is C

Explanation

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The nurse administers vitamin K intramuscularly as prophylaxis to the newborn based on which of the following rationales? Select one:

A client who is breastfeeding her newborn tells the nurse, "I notice that when I feed him, I feel fairly strong contraction-like pain. Labor is over. Why am I having contractions now?" Which response by the nurse would be most appropriate? Select one:

A nurse explains to new parents that their newborn has developed respiratory distress syndrome (RDS). Which of the following assessments that the nurse makes would support a diagnosis of RDS? Select one:

At 22 weeks' gestation, a client is diagnosed with placenta previa. The doctor tells the client that the placenta may move away from the cervix as the pregnancy progresses. This is classified as what type of previa?

On the first prenatal visit, the woman's cervix feels softened upon examination. The nurse records this finding as: Select one:

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:

Following a normal spontaneous vaginal delivery (NSVD), a 28 year old G3 now P3 mother develops sudden onset shortness of breath, hypoxia and cyanosis. The delivery room nurse quickly recognizes these symptoms as possible: Select one:

In a client's seventh month of pregnancy, she reports feeling "dizzy, like I'm going to pass out, when I lie down ﬂat on my back". The nurse explains that this is due to:
Select one: