Adult Health Nursing First Chapter Quizlet

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: When a patient is diagnosed with pneumonia, the breath sounds detected by the nurse on auscultation of the affected area would typically include fine crackles. Fine crackles are discontinuous, high-pitched crackling or rattling sounds heard during inspiration that indicate the presence of fluid in the small airways or alveoli. These crackles are caused by the movement of secretions or exudate within the bronchioles or alveoli, which is a common characteristic of pneumonia. Wheezing sounds are usually associated with conditions such as asthma, bronchitis, or COPD and are caused by narrowed airways. Stridor is a high-pitched, crowing sound that typically indicates an obstruction in the upper airway and is often heard in cases of laryngeal inflammation or foreign body aspiration. Deep and low-pitched breath sounds are more characteristic of conditions like chronic bronchitis.

Correct Answer: D

Rationale: Multiple myeloma is a plasma cell neoplasm characterized by the presence of abnormal monoclonal plasma cells in the bone marrow, which produce a monoclonal spike on serum protein electrophoresis. The clinical presentation of weakness, bone pain, and recurrent infections is typical of multiple myeloma. Anemia can result from bone marrow infiltration by the abnormal plasma cells, hypercalcemia is due to bone destruction and release of calcium, renal insufficiency can result from hypercalcemia and protein deposition in the kidneys, and the monoclonal spike in serum protein electrophoresis indicates the presence of a monoclonal protein. Waldenström macroglobulinemia, Hodgkin lymphoma, and chronic lymphocytic leukemia do not typically present with the classic tetrad of findings seen in multiple myeloma.

Correct Answer: B

Rationale: The palliative nurse should prioritize performing thoracentesis to drain the pleural fluid and relieve dyspnea in a patient with terminal cancer experiencing pleural effusion. Pleural effusion is a common complication in patients with advanced cancer and can cause significant respiratory distress. Drainage of the pleural fluid through thoracentesis can provide immediate relief by easing the pressure on the lungs and improving the patient's ability to breathe. This intervention is essential in managing dyspnea for comfort and quality of life in palliative care settings. Administering bronchodilator medications (option A) or recommending non-invasive positive pressure ventilation (option C) may not directly address the underlying cause of dyspnea in this case. While relaxation techniques (option D) can help with anxiety and overall well-being, they may not be sufficient in managing the physical symptom of dyspnea caused by pleural effusion.

Correct Answer: B

Rationale: T cell exhaustion is a state of T cell dysfunction that arises during chronic viral infections or cancer. In the case of a chronic viral infection, the persistent exposure to viral antigens leads to continuous stimulation of CD8+ cytotoxic T cells. Over time, this sustained stimulation can lead to T cell exhaustion, characterized by the upregulation of inhibitory receptors, impaired effector functions, and reduced proliferative capacity. As a result, despite the elevated levels of CD8+ T cells in the blood, their function may be compromised, ultimately impacting the immune response against the viral infection. In contrast, activation-induced cell death (AICD) may contribute to T cell loss during chronic infections but would not explain the persistently elevated CD8+ T cell levels. Thymic involution refers to the age-related decline in thymus function, which is not directly related to the observed increase in CD8+ T cells. Antigenic