A patient presents with fever, headache, and a maculopapular rash that started on the face and spread to the trunk and extremities. Laboratory tests reveal leukopenia and thrombocytopenia. Which of the following is the most likely causative agent?

Correct Answer: C

Rationale: The clinical presentation described with fever, headache, maculopapular rash starting on the face and spreading to the trunk and extremities, along with leukopenia and thrombocytopenia suggests a likely diagnosis of Rocky Mountain spotted fever (RMSF), which is caused by the bacterium Rickettsia rickettsii.

Correct Answer: C

Rationale: Uterine rupture is a serious obstetric emergency that involves a tear or rupture of the uterine wall during pregnancy. In this scenario, the pregnant woman with severe lower abdominal pain, vaginal bleeding, and a tender, distended abdomen is showing signs consistent with uterine rupture. These symptoms are typically not seen with other conditions listed.

Correct Answer: B

Rationale: When a woman in active labor is receiving intravenous oxytocin for labor augmentation, it is essential to increase the oxytocin infusion rate gradually to prevent oxytocin-induced uterine hyperstimulation. Uterine hyperstimulation can lead to complications such as fetal distress, uterine rupture, and postpartum hemorrhage. By increasing the oxytocin infusion rate gradually, the uterus has more time to adapt to the medication and reduces the risk of hyperstimulation. It is crucial for the healthcare provider to carefully monitor the woman's response to oxytocin and adjust the infusion rate as needed to ensure safe and effective labor augmentation. Monitoring for signs of uterine hyperstimulation, such as persistent contractions close together or excessive uterine activity, is crucial in preventing complications and ensuring the well-being of both the mother and baby.

Correct Answer: A

Rationale: In the case of a woman in active labor with placenta previa, the priority nursing intervention is to prepare for an immediate cesarean section. Placenta previa is a condition in which the placenta covers part or all of the cervix, which can lead to severe bleeding during labor and delivery. The risk of hemorrhage is significant, making a cesarean section the safest option for both the mother and the baby in this situation. It is crucial to act promptly to prevent complications and ensure the well-being of both the mother and the baby. Administering intravenous oxytocin to augment labor or inserting a Foley catheter to monitor urine output would not address the immediate risk of hemorrhage associated with placenta previa. Implementing bed rest and continuous fetal monitoring may be part of the overall care plan but not the priority intervention in this urgent situation.

Correct Answer: A

Rationale: A woman experiencing irregular and ineffective uterine contractions with prolonged cervical dilation may indicate labor dystocia, also known as abnormal labor progression. To address this issue, the nursing intervention that should be implemented is to encourage the mother to ambulate and change positions frequently. This can help optimize fetal positioning and encourage descent through the birth canal by using gravity to aid in the progression of labor. Changing positions can also potentially improve the quality and effectiveness of contractions, leading to more successful cervical dilation and labor progress. Encouraging ambulation and position changes are non-invasive, patient-centered interventions that can be helpful in managing labor dystocia before considering more invasive interventions like cesarean section.