Correct Answer: B

Rationale: The pharynx is the structure responsible for transporting food from the oral cavity to the esophagus during swallowing. When food is chewed and mixed with saliva in the oral cavity, it forms a bolus that is propelled to the pharynx by the tongue. The pharynx serves as a common passageway for both air and food, allowing the bolus to pass into the esophagus while preventing it from entering the trachea. The epiglottis, although important in preventing food from entering the airway, is not directly involved in the transportation of food from the oral cavity to the esophagus.

Correct Answer: C

Rationale: Medico-legal charts are typically stored for a minimum of 10 years after the case is closed to ensure compliance with legal requirements and to provide a comprehensive record of the medical care provided. This duration allows for potential future reference, follow-up treatment, or legal purposes that may arise within the specified timeframe. It is important to maintain these records for an extended period to protect both the patient's rights and the healthcare provider's accountability. Additionally, storing medico-legal charts for 10 years aligns with standard retention practices in the healthcare industry.

Correct Answer: C

Rationale: Ciprofloxacin is an antibiotic commonly prescribed for the prevention of bacterial infections that can result from animal bites, such as dog bites. Dog bites are often contaminated with bacteria and can lead to infections, particularly from organisms such as Pasteurella multocida. Ciprofloxacin is effective against a broad range of bacteria, including those commonly found in animal bites, making it a suitable choice for infection prophylaxis in this scenario. Ibuprofen is a pain reliever and anti-inflammatory medication, tetanus toxoid is given to prevent tetanus infection, and meperidine is a narcotic analgesic used for pain relief, but none of these options specifically target bacterial prevention in the case of a dog bite.

Correct Answer: C

Rationale: The APCAR (Appearance, Pulse, Grimace, Activity, Respiration) score is used to evaluate a newborn's condition in the first few minutes after birth. This assessment typically occurs within the first 1 to 3 minutes after the baby is born. The score helps healthcare providers quickly assess the baby's overall well-being and determine if any immediate interventions or further monitoring are necessary.

Correct Answer: B

Rationale: Nursing interventions should be aimed at addressing the mother's needs for psychological security. Hyper vigilance and excessive worry about her child's safety indicate a lack of security in her mind. By providing support, reassurance, and education, nurses can help the mother feel more secure in her role as a parent and reduce her feelings of anxiety and distress. Establishing trust and building a therapeutic relationship can also contribute to enhancing the mother's psychological security and well-being.