HESI Fundamentals Practice Questions

Correct Answer: A

Rationale: The correct answer is A: 'Your eyes see at 20 feet what visually unimpaired eyes see at 30 feet.' In the Snellen eye test, a visual acuity of 20/30 means that the client sees at 20 feet what a person with normal vision sees at 30 feet. This indicates that the client's vision is slightly worse than average. Choice B is incorrect as it incorrectly describes the visual acuity of each eye individually, rather than the combined visual acuity. Choice C is incorrect as it misinterprets the meaning of the Snellen eye test results by reversing the values. Choice D is incorrect as it inaccurately describes the visual acuity of the client's eyes, attributing different visual acuities to each eye instead of a combined measurement as indicated by 20/30.

Correct Answer: A

Rationale: The correct answer is A because cleaning the outside part of hearing aids with a damp cloth is an appropriate method. Rubbing alcohol can damage ear molds, so choice B is incorrect. Keeping the volume of hearing aids turned up high may lead to discomfort, making choice C incorrect. Removing batteries when not in use at night is good practice for battery life, but it does not directly relate to understanding cleaning instructions, so choice D is less relevant in this context.

Correct Answer: B

Rationale: The correct answer is B because as a witness, the nurse's primary responsibility is to confirm that the signature on the preoperative consent form belongs to the client. The nurse is not confirming the client's understanding of the procedure (Choice A), but rather the authenticity of the signature. Choice C is incorrect because the nurse is not responsible for verifying that the procedure has been explained, but rather confirming the client's signature. Similarly, Choice D is incorrect because the nurse's role as a witness is not to ensure the client is aware of potential complications, but to verify the signature.

Correct Answer: A

Rationale: The correct answer is to wear a gown when caring for the client. Shigellosis is highly contagious, and contact precautions are essential to prevent the spread of infection. Wearing gloves alone may not provide adequate protection as the client's diarrhea can contain infectious pathogens that can easily spread. Standard precautions include hand hygiene, but specific precautions for shigellosis require wearing a gown to protect against contact with infectious material. Wearing a mask and face shield are not necessary for shigellosis, as the primary mode of transmission is through the fecal-oral route, and these precautions are not indicated for this type of transmission.

Correct Answer: B

Rationale: The correct answer is B. Petroleum jelly is flammable and should not be used with oxygen therapy as it can increase the risk of fire. Using petroleum jelly near oxygen can lead to a fire hazard. Choices A, C, and D are correct statements that indicate proper understanding of oxygen therapy safety measures. Choice A emphasizes the importance of keeping the oxygen tank upright to prevent leaks, choice C highlights the necessity of avoiding smoking to prevent exacerbation of COPD, and choice D encourages seeking medical help promptly in case of breathing difficulties.