Foundations and Adult Health Nursing Test Bank

Correct Answer: C

Rationale: The hypothalamus is the link between the nervous system and the endocrine system. It plays a crucial role in maintaining homeostasis in the body by communicating with the pituitary gland, which is often referred to as the "master gland" of the endocrine system. The hypothalamus produces hormones that regulate the release of hormones from the pituitary gland, which then controls the functions of other endocrine glands throughout the body. This connection allows the nervous system to influence and coordinate various hormonal responses in the body, helping to regulate processes such as metabolism, growth, stress responses, and reproduction.

Correct Answer: C

Rationale: One of the main consequences of hypoxemia, which is low oxygen levels in the blood, is decreased oxygen saturation. Oxygen saturation refers to the percentage of hemoglobin molecules in the blood that are bound to oxygen. When there is insufficient oxygen in the blood due to hypoxemia, the oxygen saturation levels will drop. This can lead to symptoms such as shortness of breath, confusion, rapid heart rate, and ultimately can result in tissue damage if not corrected promptly. Monitoring oxygen saturation levels is crucial in the immediate post-operative phase to ensure adequate ventilation and oxygenation for the patient's recovery.

Correct Answer: C

Rationale: Pericarditis is the inflammation of the pericardium, the sac surrounding the heart. Patients with pericarditis typically present with sharp chest pain that worsens with deep breathing, changes in body position, and coughing. The pain tends to improve when the patient leans forward. This characteristic symptom of pericarditis is known as "pleuritic" chest pain. In contrast, stable angina presents as predictable chest pain that occurs with exertion and is relieved by rest or medications. Unstable angina is characterized by chest pain that occurs at rest or with minimal exertion and is considered a medical emergency. Myocarditis involves inflammation of the heart muscle and may present with symptoms such as chest pain, but it does not typically have the characteristic of worsening with deep breathing or changes in body position.

Correct Answer: A

Rationale: In a patient with acute myocardial infarction (MI) presenting with ST-segment elevation on ECG, the healthcare team should prioritize performing emergent coronary angiography for revascularization. This intervention, also known as primary percutaneous coronary intervention (PCI), involves opening up the blocked coronary artery responsible for the MI. Timely reperfusion of the affected artery is crucial in reducing myocardial damage and improving outcomes in acute MI patients. PCI is considered the preferred method for revascularization in patients with ST-segment elevation MI, as it has been shown to be more effective and associated with better outcomes compared to fibrinolytic therapy.

Correct Answer: A

Rationale: In delegation, facilitating the professional growth and development of a staff is necessary because it allows team members to gain new skills and experience, leading to overall improved productivity and job satisfaction. This empowers staff and helps them feel more engaged in their work, ultimately benefiting the entire unit. Effective delegation should aim to support individuals in their roles, encourage learning, and build competence, rather than modifying standards of care or only delegating tasks without considering individual growth. Starting delegation from top management to staff-nurse level may not always be practical or efficient, as delegation should be based on competencies and responsibilities. Accountability is indeed a crucial aspect of delegation, as individuals should be held responsible for the tasks they are delegated. However, without providing opportunities for professional growth and development, delegation may not be as effective in achieving organizational goals.