Two months after Mr. Edwards' myocardial infarction, which goal assumes highest priority?

Correct Answer: C

Rationale: In the context of a patient recovering from a myocardial infarction (heart attack), the highest priority goal two months post-event would be option C) Developing a physical-conditioning program. This is because physical conditioning is crucial for cardiac rehabilitation and overall recovery after a heart attack. Exercise helps improve cardiovascular fitness, strengthens the heart muscle, lowers blood pressure, and reduces the risk of future cardiac events. Option A) Having his wife perform most of his activities of daily living may be necessary initially but does not address the long-term goal of improving his physical health and independence. Option B) Following a weight-reduction diet is important for overall health but may not be the immediate priority over physical conditioning post-heart attack. Option D) Assisting him to prepare for retirement is not directly related to his current health status and recovery needs. In an educational context, it is important for healthcare providers to prioritize interventions that directly impact the patient's recovery and well-being. Understanding the rationale behind each option helps in making informed clinical decisions and providing patient-centered care. Emphasizing the significance of physical conditioning in cardiac rehabilitation can lead to better outcomes and quality of life for patients recovering from a myocardial infarction.

Correct Answer: C

Rationale: In the case of Mr. Johnson with possible acute myocarditis, the most important action would be option C) Keeping him on a regimen of complete bed rest. Acute myocarditis is an inflammatory condition of the heart muscle that can lead to serious complications, including heart failure. Bed rest is crucial in this condition as it reduces the workload on the heart, allowing it to heal and recover. Physical exertion can exacerbate the inflammation and damage to the heart muscle, so complete bed rest is essential for Mr. Johnson's recovery. Option A) Placing him in a darkened room is incorrect as it does not directly address the physiological needs of a patient with acute myocarditis. Option B) Keeping a nutritional intake record on him, while important for overall health, is not the most critical action in this acute situation. Option D) Telling him not to worry, he will recover soon, is incorrect as it does not provide the necessary medical intervention required for acute myocarditis. In an educational context, it is important for healthcare providers to understand the specific management strategies for different cardiovascular conditions. Understanding the rationale behind the importance of bed rest in acute myocarditis can help healthcare professionals provide optimal care and support for patients like Mr. Johnson, ultimately leading to better outcomes and improved patient well-being.

Correct Answer: A

Rationale: The correct answer is A: Chordae tendineae. These fibrous cords hold up the AV valves (mitral and tricuspid valves) and are anchored to the ventricular wall by the papillary muscles. The papillary muscles contract to prevent the AV valves from prolapsing into the atria during ventricular contraction. Choice B (Papillary muscles) is incorrect as they assist in the function but are not the structures that hold up the AV valves. Choices C (Semilunar valves) and D (Aortic valve) are incorrect as they are not directly involved in supporting the AV valves or anchored by the papillary muscles.

Correct Answer: A

Rationale: The correct answer is A: Right coronary artery. This artery supplies the mentioned structures as it branches off from the aorta and follows the coronary sulcus to reach the right side of the heart. It provides blood to the right atrium, right ventricle, part of the septum, SA node, AV node, and inferior left ventricle. The Left circumflex artery (B) mainly supplies the left atrium and lateral part of the left ventricle. The Posterior descending artery (C) typically arises from the right coronary artery and supplies the inferior part of the heart. The Aortic artery (D) is not a specific artery that directly supplies the structures mentioned.

Correct Answer: A

Rationale: The correct answer is A: Excitability. Excitability refers to the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse. This process is essential for the heart to function properly. Contractility (B) is the ability of cardiac muscle to shorten forcibly when stimulated. Rhythmicity (C) refers to the heart's ability to generate a regular rhythm of contractions. Conductivity (D) is the ability of cardiac cells to transmit electrical impulses. Excitability is the most fitting term in this context as it specifically describes the response of cardiac cells to a stimulus.