Community Health HESI 2023

Correct Answer: A

Rationale: The correct answer is A: Improved academic performance. Physical activity has been shown to improve academic performance by enhancing concentration and cognitive function. This benefit is particularly important for elementary school students who are developing foundational skills. Choice B, increased social interactions, while important for overall development, may not directly relate to the academic aspect that the nurse is focusing on. Choice C, enhanced physical strength, is a valid benefit of physical activity but may not be as relevant to academic performance as the ability to concentrate and learn. Choice D, better sleep patterns, is also a valuable outcome of physical activity but is not as directly linked to academic performance as improved cognitive function.

Correct Answer: B

Rationale: Shortness of breath is a critical sign that can indicate heart failure or pulmonary edema, conditions that require immediate intervention in a client with a suspected myocardial infarction. Chest pain radiating to the left arm is a classic symptom of a myocardial infarction but may not necessitate immediate intervention compared to severe shortness of breath. Nausea and vomiting can be present in myocardial infarction but are not as urgent as shortness of breath. Diaphoresis, or sweating, is a common symptom of a myocardial infarction but may not be as immediately concerning as significant shortness of breath.

Correct Answer: C

Rationale: Verifying the blood type and Rh factor with another healthcare professional is the most crucial action to prevent a transfusion reaction. Ensuring compatibility between the donor blood and the recipient is essential in preventing adverse reactions such as hemolytic transfusion reactions. Checking vital signs is important for monitoring the client during the transfusion process but does not directly prevent a transfusion reaction. Using a blood filter can help remove clots and debris but does not address the risk of a reaction due to blood type incompatibility. Administering antihistamines before the transfusion is not a standard practice to prevent transfusion reactions related to blood type incompatibility.

Correct Answer: A

Rationale: The regular pulsation at the epigastric area when the client is supine is a normal finding. This phenomenon is caused by the regular and recurrent expansion and contraction of an artery due to waves of pressure caused by the ejection of blood from the left ventricle. Choices B, C, and D describe abnormal findings during a physical assessment. A loud, harsh murmur at the second right intercostal space indicates an abnormal heart sound, dullness over the lung fields may suggest consolidation or fluid in the lungs, and increased tactile fremitus can be a sign of lung consolidation or pathology.

Correct Answer: B

Rationale: The correct answer is B: botulism toxin. The symptoms described, including symmetric, descending flaccid paralysis, blurred vision, double vision, and dry mouth, are classic manifestations of botulism, which is caused by a toxin produced by Clostridium botulinum. This toxin affects the nervous system, leading to muscle weakness and paralysis. Choice A, ricin, typically presents with gastrointestinal symptoms and organ failure. Choice C, sulfur mustard, causes blistering skin and respiratory issues. Choice D, yersinia pestis, is associated with the plague and presents with fever, chills, weakness, and swollen lymph nodes.