Community Health HESI Practice Exam

Correct Answer: B

Rationale: Epidemiology is the study of the distribution and determinants of health-related states in populations. Choice A is incorrect because epidemiology focuses on more than just causes but also on distribution and determinants. Choice C is incorrect as it specifically relates to public health and not just treatment and prevention. Choice D is incorrect as epidemiology is broader than just focusing on the healthcare system and its effectiveness.

Correct Answer: B

Rationale: Referring the student for further evaluation of scoliosis is crucial to confirm the diagnosis and determine the appropriate management plan. Sending the student home (choice A) without proper assessment and intervention is not the best course of action. Withdrawing the student from all physical activities (choice C) is not necessary and may cause unnecessary distress. Instructing the student not to carry her backpack on her back (choice D) does not address the underlying issue of scoliosis and is not the most important intervention at this point.

Correct Answer: A

Rationale: The correct answer is A: 'Impaired physical mobility related to muscle rigidity and weakness.' For a client with Parkinson's disease, impaired physical mobility is a priority nursing diagnosis because of the characteristic motor symptoms such as muscle rigidity, bradykinesia, and postural instability. Addressing impaired physical mobility is crucial to enhance the client's quality of life. Choices B, C, and D are not the priority nursing diagnoses for a client with Parkinson's disease. Ineffective coping (Choice B) and fear of seizures (Choice D) may be concerns but are not the priority. Ineffective breathing pattern (Choice C) is not typically associated with Parkinson's disease.

Correct Answer: A

Rationale: A rapid weight gain of 2 pounds or more in a 48-hour period may indicate fluid retention and worsening heart failure, requiring prompt medical evaluation and intervention. This finding is crucial in managing chronic congestive heart failure as it signifies a potential exacerbation of the condition. Choices B, C, and D are less concerning in this context. Urinating 4 to 5 times a day is within the normal range for most individuals and may not be directly related to heart failure. A significant decrease in appetite may be due to various factors and might not be an immediate cause for concern in heart failure patients. The appearance of non-pitting ankle edema, although related to heart failure, is a more chronic and less urgent symptom when compared to a rapid weight gain, which requires immediate attention.

Correct Answer: D

Rationale: The PPD (purified protein derivative) intradermal test is the standard screening method for detecting tuberculosis infection. It helps identify individuals who have been infected with Mycobacterium tuberculosis. A chest x-ray (Choice A) is used to assess the extent of active disease, not for screening purposes. Blood culture (Choice B) is not typically used for tuberculosis screening. Sputum culture (Choice C) is used to confirm active tuberculosis in symptomatic individuals, not for initial screening purposes.