Correct Answer: C

Rationale: Uterine rupture is the most likely cause of these symptoms in a pregnant woman presenting with sudden onset of severe abdominal pain, vaginal bleeding, rigidity of the abdomen, and palpable fetal parts abdominally. Uterine rupture is a rare but serious complication of pregnancy, typically occurring during labor in women with a previous cesarean delivery or other uterine scars. The sudden onset of severe abdominal pain can be associated with vaginal bleeding due to the tearing of the uterine wall, causing fetal parts to be palpable abdominally. This is a life-threatening emergency that requires immediate medical intervention. Ectopic pregnancy, pelvic inflammatory disease, and ovarian torsion may present with abdominal pain and vaginal bleeding but would not typically present with palpable fetal parts abdominally in a pregnant woman.

Correct Answer: D

Rationale: The causative agent of dengue fever is a virus. Dengue fever is primarily transmitted to humans by the bite of infected Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus. These mosquitoes act as vectors, carrying and transmitting the dengue virus (specifically four closely related but antigenically different serotypes: DEN-1, DEN-2, DEN-3, and DEN-4) to humans during the feeding process. The virus then replicates in the human body, causing symptoms of dengue fever. Therefore, the correct answer is D. Virus.

Correct Answer: A

Rationale: The behavior of repetitive cleaning in someone diagnosed with obsessive-compulsive disorder is likely an attempt to decrease the anxiety to a tolerable level. People with OCD often engage in compulsive behaviors, such as cleaning, in an effort to alleviate the distress and anxiety caused by obsessive thoughts. This repetitive action provides a sense of control and temporary relief from the anxiety associated with their obsessive thoughts. By engaging in cleaning rituals, individuals with OCD can try to reduce their anxious feelings and create a sense of order and cleanliness in their environment.

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: The PRIORITY nursing action when receiving information about suspected child abuse is to report to the police authorities. Child abuse is a serious issue that requires immediate intervention to ensure the safety and well-being of the child. The police are trained to investigate these types of situations and can take the necessary steps to protect the child from harm. It is essential to act swiftly and report any suspicions of child abuse to the proper authorities to prevent further harm and ensure the child's safety.