Correct Answer: B

Rationale: The diagnostic test that could be useful in confirming the diagnosis of Dengue Fever is the ELISA test. ELISA stands for Enzyme-Linked Immunosorbent Assay. This test detects the presence of dengue virus-specific antibodies (IgM and IgG) in the blood of an individual suspected to have dengue fever. Elevated levels of these antibodies indicate a recent or ongoing dengue virus infection. ELISA is a standard and reliable test used in diagnosing dengue fever, along with clinical symptoms and other laboratory tests.

Correct Answer: B

Rationale: Monitoring oxygen saturation with pulse oximetry is essential for preventing respiratory depression in a patient prescribed an opioid analgesic. Opioid analgesics can suppress the respiratory drive, leading to respiratory depression. By constantly monitoring the patient's oxygen saturation levels with pulse oximetry, nurses can promptly detect any signs of respiratory depression and intervene early to prevent serious complications. This allows for timely adjustments in the medication dosage or administration of other supportive measures to maintain adequate oxygenation and prevent respiratory compromise. Administering naloxone prophylactically may be necessary in case of an opioid overdose but is not typically done as a preventive measure. Encouraging deep breathing exercises can help prevent respiratory complications postoperatively but may not be sufficient in the presence of opioid-induced respiratory depression. Administering bronchodilators as needed is not directly related to preventing respiratory depression caused by opioid analgesics.

Correct Answer: D

Rationale: Administering oxygen therapy is the priority nursing intervention for managing a patient with COPD experiencing respiratory distress. In COPD, the patient's lungs are less efficient at oxygen exchange, leading to hypoxemia. Oxygen therapy helps improve oxygenation in the body and alleviates respiratory distress in these patients. Positioning the patient in high Fowler's position can also help improve lung expansion, but providing supplemental oxygen takes precedence in addressing the underlying hypoxemia. Administering bronchodilators and performing chest physiotherapy aim to manage airway obstruction and promote airway clearance, but ensuring the patient has adequate oxygenation is crucial in the immediate management of respiratory distress in COPD.

Correct Answer: D

Rationale: The most likely cause of the sudden onset of severe abdominal pain and dark red vaginal bleeding with a tender, firm uterus at 28 weeks gestation is abruptio placentae. Abruptio placentae, also known as placental abruption, is the premature separation of the placenta from the uterine wall before delivery. This condition can be life-threatening to both the mother and the fetus, as it can lead to severe bleeding and compromise the oxygen and nutrients supply to the fetus. The presentation typically includes severe abdominal pain, dark red or maroon vaginal bleeding, uterine tenderness, and a firm uterus due to the blood accumulation behind the placenta. Prompt recognition and intervention are crucial to prevent adverse maternal and fetal outcomes.

Correct Answer: B

Rationale: When a woman in active labor experiences persistent fetal malposition, such as a transverse lie presentation, assisting the mother into a hands-and-knees position is a nursing intervention to prioritize. This position can help encourage the fetus to rotate into a more favorable position for delivery, such as a head-down position. By placing the mother in a hands-and-knees position, gravity can assist in shifting the fetus to the correct position. This intervention is non-invasive and can be effective in promoting the progress of labor and avoiding the need for more invasive interventions like instrumental delivery or cesarean section. However, if the fetus does not rotate or if there are signs of fetal distress, further interventions may be necessary.