Correct Answer: A

Rationale: The correct answer is A: Cancerous lumps. Breast self-examination aims to detect any abnormal changes in the breasts, including potential cancerous lumps. Detecting cancerous lumps early increases the chances of successful treatment and improved outcomes. Choices B, C, and D are incorrect because while changes from previous self-examinations, areas of thickness or fullness, and fibrocystic masses can be important to note, the primary goal of breast self-examination is to identify any signs of breast cancer, such as cancerous lumps.

Correct Answer: A

Rationale: The correct answer is A because thalassemia is a genetic blood disorder that can cause anemia and fatigue. By maintaining the client on bed rest and protecting them from infections, we can help prevent complications such as fatigue and infections due to reduced red blood cell production. Ambulating the client frequently (choice B) may lead to increased fatigue and risk of injury. Advising to drink 3 quarts of fluid per day (choice C) is not specific to thalassemia treatment and could potentially worsen symptoms. Instructing the client to elevate lower extremities (choice D) is not directly related to managing thalassemia and may not provide significant benefits in this context.

Correct Answer: A

Rationale: The correct answer is A because hyperventilating James with 100% oxygen before and after suctioning can lead to oxygen toxicity. The rationale is as follows: 1. Hyperventilation with 100% oxygen can lead to increased oxygen levels in the blood, potentially causing oxygen toxicity. 2. Oxygen toxicity can result in lung damage and other complications. 3. It is not recommended to administer 100% oxygen continuously, especially in high concentrations. Therefore, Wilma committing an error by hyperventilating James with 100% oxygen. Other choices are incorrect because B is a common practice to help loosen secretions, C is correct suctioning technique, and D is a reasonable frequency for suctioning depending on the client's condition.

Correct Answer: A

Rationale: The correct answer is A because protocols are indeed guidelines that assist clinicians in decision-making and choosing interventions for specific health care problems. This definition accurately reflects the purpose and function of protocols in nursing practice. Option B is incorrect as it describes protocols as policies related to nurses' duties and standards of care, which is more aligned with job descriptions and policies rather than protocols. Option C is incorrect as it relates protocols to a code of ethics, which is a separate concept that guides ethical decision-making and behavior in nursing practice. Option D is incorrect as it inaccurately describes protocols as prescriptive order forms, which are actually separate from protocols and are used for medication administration and treatment orders.

Correct Answer: A

Rationale: The correct answer is A: Levodopa. Levodopa is the most effective pharmacologic agent for treating Parkinson's disease because it is converted to dopamine in the brain, replenishing the deficient dopamine levels in Parkinson's patients. Selegiline and Symmetrel are also used in treating Parkinson's, but they are typically used as adjunctive therapy rather than the primary treatment. Permax has been withdrawn from the market due to safety concerns, making it an incorrect choice.