Practice HESI Fundamentals Exam

Correct Answer: C

Rationale: In the scenario described, the client has a living will that declines resuscitation. Therefore, if the client arrives at the emergency department with difficulty breathing, healthcare providers would consult the living will to understand the client's wishes. Providing comfort care, which may include oxygen therapy to alleviate symptoms, aligns with the client's preferences. Option A incorrectly suggests an intervention that goes against the client's wishes. Option B is incorrect because full resuscitation efforts are not in line with the client's choice to decline resuscitation. Option D is also incorrect as it does not consider the client's living will and the need to provide care according to the documented preferences of the client.

Correct Answer: D

Rationale: The nurse should interpret confusion and agitation in an older adult patient with a UTI as common manifestations of the infection. In older patients, confusion is a primary symptom of a compromised state due to an acute urinary tract infection or fever. Choice A is incorrect as confusion and agitation are not normal signs of aging. Choice B is incorrect because these symptoms are more likely related to the UTI rather than early signs of dementia. Choice C is incorrect as confusion and agitation in this context are not purely psychological but are likely physiological responses to the UTI.

Correct Answer: A

Rationale: The correct answer is to ensure the bladder of the BP cuff surrounds 80% of the arm. This technique is crucial for obtaining accurate blood pressure readings. Choice B is incorrect because using the BP cuff on the forearm may lead to inaccurate readings. Choice C is incorrect as applying the BP cuff loosely can also result in inaccurate measurements. Choice D is incorrect because using a pediatric cuff for adults with small arms would not provide accurate blood pressure readings.

Correct Answer: B

Rationale: The most appropriate initial approach to correct the behavior of improper hand washing by a staff nurse is to discuss what the nurse knows about proper hand hygiene. This approach helps in identifying any knowledge gaps the nurse may have and provides an opportunity to educate and correct the behavior. Option A is not the best choice as simply reminding the nurse about the importance of hand washing may not address the underlying issue of knowledge or technique. Option C, providing a review of the hand washing policy, may be necessary but is not the most immediate step to take. Option D, referring the nurse to the infection control nurse, is premature and may not be necessary if the issue can be resolved through education and communication first.

Correct Answer: D

Rationale: The correct answer is D: 'Carbon monoxide binds with hemoglobin in the body.' Carbon monoxide is an odorless, colorless gas, so it does not have a distinct odor (Choice A). While regular inspection of appliances like water heaters is important for safety, it is not directly related to carbon monoxide poisoning (Choice B). Carbon monoxide primarily affects the cardiovascular system by binding with hemoglobin, reducing the blood's ability to carry oxygen, rather than causing direct lung damage (Choice C). Understanding how carbon monoxide binds with hemoglobin is crucial in recognizing the mechanism of poisoning and its potential consequences.