Correct Answer: D

Rationale: Severe preeclampsia is characterized by hypertension and proteinuria after 20 weeks of gestation. Headache is a common symptom in clients with severe preeclampsia due to cerebral edema or vasospasm. Tachycardia (Choice A) is not typically associated with severe preeclampsia. Clonus (Choice B) is a sign of hyperactive reflexes, often seen in clients with severe preeclampsia. Polyuria (Choice C) is not a typical finding in clients with severe preeclampsia.

Correct Answer: B

Rationale: Rho (D) immunoglobulin is given to Rh-negative individuals to prevent hemolytic disease of the newborn (HDN) caused by Rh incompatibility between the mother and the fetus. If an Rh-negative mother carries an Rh-positive fetus, there is a risk of sensitization during pregnancy or childbirth. Sensitization can lead to the production of antibodies that may attack Rh-positive red blood cells in future pregnancies, potentially causing severe hemolytic disease in the newborn, including complications like hydrops fetalis. Hydrops fetalis is a condition characterized by severe edema and fetal organ enlargement due to severe anemia and heart failure in the fetus.

Correct Answer: B

Rationale: A missed miscarriage, also known as a silent or delayed miscarriage, occurs when the embryo or fetus has died, but no bleeding or contractions have occurred to expel it from the uterus. In this scenario, the client's experiencing slight occasional vaginal bleeding over the past two weeks indicates a missed miscarriage as the fetus has died, but the body has not recognized the loss or expelled the products of conception.

Correct Answer: C

Rationale: In the scenario where a newborn's mother is positive for hepatitis B surface antigen, the infant should receive both hepatitis B immune globulin and hepatitis B vaccine within 12 hours of birth. This is crucial to provide passive and active immunity against the Hepatitis B virus. Hepatitis B immune globulin provides immediate protection by giving passive immunity, while the vaccine stimulates active immunity in the infant. Administering both within 12 hours of birth is important to prevent vertical transmission of the virus.

Correct Answer: D

Rationale: In the scenario described, the client is experiencing heavy vaginal bleeding, which is concerning for placenta previa. The appropriate nursing action in this situation is to prepare for a cesarean birth. Placenta previa is a condition where the placenta partially or completely covers the cervix, which can lead to life-threatening bleeding during labor. It is crucial to avoid vaginal examinations or initiation of pushing as these actions can exacerbate bleeding. A magnesium sulfate infusion is not indicated in the management of placenta previa. Therefore, the priority intervention is to prepare for a cesarean birth to ensure the safety of the mother and the baby.