Correct Answer: C

Rationale: The scenario described in the question is consistent with acute cholecystitis, which is inflammation of the gallbladder usually caused by an impacted gallstone in the cystic duct. The key clinical features of acute cholecystitis include fever, chills, right upper quadrant abdominal pain (which can be localized to the right upper quadrant), tenderness in the right upper abdomen, and a positive Murphy's sign (pain and inspiratory arrest upon palpation of the right upper quadrant). This condition is more common in pregnant women due to hormonal changes that can lead to gallstone formation and subsequent inflammation of the gallbladder. Ectopic pregnancy, pelvic inflammatory disease, and ovarian torsion typically present with different clinical features compared to those described in acute cholecystitis.

Correct Answer: A

Rationale: Precipitous labor is characterized by rapid cervical dilation and descent of the fetal presenting part, leading to a shortened labor duration of less than 3 hours. This rapid progression can increase the risk of maternal complications, such as postpartum hemorrhage. Postpartum hemorrhage is defined as excessive bleeding of more than 500 ml after vaginal delivery or more than 1000 ml after cesarean delivery. The rapid delivery in precipitous labor can result in inadequate uterine contractions after delivery, leading to poor uterine tone and potential postpartum hemorrhage due to uterine atony. Therefore, the nurse should anticipate postpartum hemorrhage as a potential maternal complication in a woman experiencing precipitous labor.

Correct Answer: C

Rationale: The correct answer is C: second. In qualitative research, the nurse researcher typically uses the second person as a reference in the write-up to maintain objectivity and convey findings accurately. Using "first" may introduce bias, "fourth" is irrelevant, and "third" is too far removed from the perspective of the researcher. By referencing the second person, the researcher can present the results in a clear and unbiased manner, enhancing the credibility of the study.

Correct Answer: A

Rationale: One potential complication of epidural analgesia in labor is maternal hypotension. The epidural analgesic can cause vasodilation, leading to a decrease in blood pressure. Maternal hypotension can result in decreased placental perfusion, which may jeopardize fetal well-being. It is important for healthcare providers to monitor the maternal blood pressure closely and intervene promptly if hypotension occurs by providing IV fluids or administering medication to raise blood pressure. Uterine hyperstimulation, fetal tachycardia, and respiratory depression are not typically associated with epidural analgesia as complications.

Correct Answer: D

Rationale: The correct answer is D: Ventricular tachycardia. Ventricular tachycardia is a serious arrhythmia that can lead to palpitations, dizziness, and syncope due to the rapid and abnormal heart rhythm originating in the ventricles. This arrhythmia can be life-threatening if not promptly treated. A: Stable angina is characterized by chest discomfort or pain due to reduced blood flow to the heart muscle, usually during physical exertion or stress. It does not typically present with palpitations, dizziness, or syncope. B: Unstable angina is a more severe form of angina where symptoms occur even at rest. While it can lead to serious complications like heart attack, it does not commonly present with palpitations, dizziness, or syncope. C: Atrial fibrillation is a common arrhythmia originating in the atria, leading to an irregular and often rapid heartbeat. While it can cause palpitations and dizziness,