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Why does the woman taking oral hypoglycemic agents to control diabetes mellitus need to take insulin during pregnancy?
- A. Insulin can cross the placental barrier to the fetus.
- B. Insulin does not cross the placental barrier to the fetus.
- C. Oral agents do not cross the placenta.
- D. Oral agents are not sufficient to meet maternal insulin needs.
Correct Answer: B
Rationale: Oral hypoglycemic agents are not used during pregnancy, because they can cross the placenta, possibly resulting in fetal birth defects or hypoglycemia.
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The nurse is caring for a pregnant woman receiving an intravenous infusion with magnesium sulfate. What is the highest priority nursing intervention?
- A. Count respirations and report a rate of less than 12 breaths/minute.
- B. Count respirations and report a rate of more than 20 breaths/minute.
- C. Check blood pressure and report a rate of less than 100/60 mm Hg.
- D. Monitor urinary output and report a rate of less than 100 mL/hr.
Correct Answer: A
Rationale: Excessive magnesium sulfate may cause respiratory depression.
What situation would concern the nurse about the presence of Rh incompatibility?
- A. Rh-negative mother, Rh-positive fetus
- B. Rh-positive mother, Rh-negative fetus
- C. Rh-negative mother, Rh-negative fetus
- D. Rh-positive mother, Rh-positive fetus
Correct Answer: A
Rationale: Rh incompatibility can occur only if the mother is Rh negative and the fetus is Rh positive.
A woman seeking prenatal care relates a history of macrosomic infants, two stillbirths, and polyhydramnios with each pregnancy. What does the nurse recognize these factors highly suggest?
- A. Toxoplasmosis
- B. Abruptio placentae
- C. Hydatidiform mole
- D. Diabetes mellitus
Correct Answer: D
Rationale: Large (macrosomic) infants over 9 pounds are linked to gestational diabetes.
The nurse educates prenatal patients about the threat of TORCH infections. Which infections are included in this classification? (Select all that apply.)
- A. Toxoplasmosis
- B. Toxemia
- C. Cytomegalovirus
- D. Rubella
- E. Herpes simplex
Correct Answer: A,C,D,E
Rationale: The TORCH infections are toxoplasmosis, rubella, cytomegalovirus, and herpes simplex.
A pregnant patient tells the nurse that she has been nauseated and vomiting. How will the nurse explain that hyperemesis gravidarum is distinguished from morning sickness?
- A. Hyperemesis gravidarum usually lasts for the duration of the pregnancy.
- B. Hyperemesis gravidarum causes dehydration and electrolyte imbalances.
- C. Sensitivity to smells is usually the cause of vomiting in hyperemesis gravidarum.
- D. The woman with hyperemesis gravidarum will have persistent vomiting without weight loss.
Correct Answer: B
Rationale: Dehydration and electrolyte imbalances result from persistent nausea and vomiting associated with hyperemesis gravidarum. Dehydration impairs the perfusion to the placenta.