Correct Answer: A

Rationale: The patient's presentation of recurrent episodes of sudden, severe vertigo lasting hours, along with nausea, vomiting, nystagmus, and unilateral weakness on vestibular function tests, is most consistent with vestibular neuritis. Vestibular neuritis is an inflammatory disorder of the vestibular nerve, typically viral in origin, leading to acute onset of vertigo. Patients often experience severe vertigo, imbalance, nausea, and vomiting, along with characteristic nystagmus. Unilateral weakness on vestibular function testing supports the diagnosis of vestibular neuritis, as it indicates dysfunction of one vestibular organ. Benign paroxysmal positional vertigo (BPPV) typically presents with brief episodes of vertigo triggered by changes in head position without associated unilateral vestibular weakness. Ménière's disease is characterized by recurrent episodes of vertigo associated with fluctuating hearing loss, tinnitus, and aural fullness, and

Correct Answer: A

Rationale: Two of the 8 Millennium Development Goals that are very specific to Maternal and Child Health (MCH) are "Reduce child mortality" and "Improve maternal health." These goals focus directly on the well-being of mothers and children, aiming to decrease child mortality rates and enhance the health of pregnant women.

Correct Answer: B

Rationale: A prolapsed umbilical cord is a medical emergency during labor because it can cause compression of the umbilical cord, leading to decreased oxygen supply to the fetus. The priority nursing action in this situation is to prepare for an immediate cesarean section. This is necessary to quickly deliver the baby and relieve pressure on the cord, preventing potential fetal distress or death. Elevating the mother's hips may help reduce pressure on the cord temporarily, but it is not the definitive treatment for a prolapsed cord. Administering intravenous fluids rapidly may be necessary, but it is not the priority intervention when the fetus is at risk due to a prolapsed cord. Performing a vaginal examination to assess cervical dilation is contraindicated in the presence of a prolapsed umbilical cord as it can further compress the cord and worsen the situation.

Correct Answer: C

Rationale: Ms. Sanchez is violating the code of ethics for nurses. Nurses are expected to uphold professional behavior and maintain a positive public image. Endorsing a detergent product on TV Commercial wearing a mini skirt and a plunging neckline shirt may be seen as unprofessional and contrary to the image of a nursing professional. The code of ethics for nurses requires nurses to act with integrity, maintain professional boundaries, and avoid actions that could bring discredit to the profession. By engaging in this commercial, Ms. Sanchez is not upholding the ethical standards expected of nurses.

Correct Answer: C

Rationale: In a patient with ARDS who is experiencing refractory hypoxemia despite maximal ventilatory support and prone positioning, the use of extracorporeal membrane oxygenation (ECMO) is a potentially life-saving adjunctive therapy. ECMO works by providing temporary support for gas exchange outside the body, allowing the lungs to rest and heal while providing adequate oxygenation and carbon dioxide removal. The use of ECMO has been associated with improved oxygenation and reduced mortality in severe cases of ARDS, especially in patients who fail conventional therapies. High-frequency oscillatory ventilation (HFOV) has not consistently shown mortality benefit in ARDS, continuous renal replacement therapy (CRRT) is not directly indicated for hypoxemia in ARDS, and inhaled nitric oxide (iNO) has shown limited benefit in improving oxygenation in ARDS without a clear impact on mortality.