Adult Health Nursing First Chapter Quizlet

Correct Answer: A

Rationale: The most important intervention for managing ventilator-associated pneumonia (VAP) caused by methicillin-resistant Staphylococcus aureus (MRSA) in a patient undergoing mechanical ventilation in the ICU is to start appropriate antimicrobial therapy targeting MRSA. Vancomycin or linezolid are commonly used antibiotics for MRSA infections. These medications are effective against MRSA and can help in treating the infection and preventing further complications. It is crucial to initiate antimicrobial therapy promptly once the diagnosis of VAP caused by MRSA is suspected or confirmed to improve patient outcomes. Other interventions such as bronchoalveolar lavage for diagnostic purposes, contact precautions, or antifungal therapy may be relevant but the priority is to start effective antibiotic therapy to target the specific pathogen causing the infection.

Correct Answer: D

Rationale: The presentation of a small, painless, well-defined nodule on the lateral aspect of the neck, above the clavicle, along with the cytology showing clusters of polygonal cells with abundant granular cytoplasm is most indicative of a parathyroid adenoma. Parathyroid adenomas are benign tumors derived from the parathyroid gland that can produce excess parathyroid hormone (PTH), leading to hyperparathyroidism. The characteristic histology of parathyroid adenomas includes chief cells with abundant granular cytoplasm.

Correct Answer: C

Rationale: If the nurse notices a discrepancy between the patient's identification bracelet and the surgical consent form, the immediate action should be to inform the surgeon and anesthesia provider. It is crucial to address any discrepancies before proceeding with the surgical procedure to ensure patient safety and prevent any potential errors or complications. The surgical team needs to be made aware of the issue so that they can verify the correct patient information and ensure that all necessary steps are taken to proceed safely. Communication and collaboration among the healthcare team members are essential in such situations to prevent any harm to the patient.

Correct Answer: B

Rationale: The laboratory test used to monitor the therapeutic effect of warfarin therapy is the International Normalized Ratio (INR). Warfarin is a commonly prescribed anticoagulant medication that works by inhibiting the action of vitamin K-dependent clotting factors. Maintaining the INR within the target range specific to the indication for anticoagulation (e.g., DVT prevention or treatment) is essential to balance the risk of bleeding and clotting.

Correct Answer: B

Rationale: Opsonization is a process in the immune response where opsonins, which are proteins such as antibodies and complement proteins, bind to pathogens such as bacteria, making them more easily recognized and engulfed by phagocytic cells like macrophages and neutrophils. This coating of pathogens by opsonins enhances the efficiency of phagocytosis, helping in the elimination of pathogens from the body. Opsonins do not facilitate cell lysis, neutralize toxins, or stimulate histamine release; their main function is to tag pathogens for phagocytosis.