which vitamin deficiency is most associated with night blindness
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Nursing Elites

HESI LPN

HESI PN Exit Exam 2023

1. Which vitamin deficiency is most associated with night blindness?

Correct answer: A

Rationale: The correct answer is Vitamin A. Vitamin A deficiency leads to night blindness because this vitamin is crucial for the formation of rhodopsin, a photopigment in the retina. Rhodopsin is essential for vision in low-light conditions. Vitamin B12 deficiency can lead to anemia and neurological issues but is not directly related to night blindness. Vitamin C deficiency can cause scurvy, affecting connective tissues, but not night vision. Vitamin D deficiency can lead to bone disorders but is not primarily associated with night blindness.

2. When administering IV fluids to a client with a history of congestive heart failure (CHF), what is the nurse's primary concern?

Correct answer: A

Rationale: The primary concern when administering IV fluids to a client with a history of congestive heart failure (CHF) is monitoring for signs of fluid overload. Clients with CHF are particularly vulnerable to fluid overload, which can exacerbate their condition. Signs of fluid overload include edema and difficulty breathing. Therefore, the nurse must closely monitor these signs to prevent worsening of the client's condition. Choices B, C, and D are incorrect because while ensuring hydration, preventing electrolyte imbalances, and maintaining the prescribed rate of fluid administration are important, they are secondary concerns compared to the critical task of monitoring for fluid overload in a client with CHF.

3. The nurse and unlicensed assistive personnel (UAP) are providing care for a client who exhibits signs of neglect syndrome following a stroke affecting the right hemisphere. What action should the nurse implement?

Correct answer: A

Rationale: The correct action for the nurse to implement is to demonstrate to the UAP how to approach the client from the client's left side. Approaching the client from the neglected side (left side) can help in retraining the brain and improving awareness of the affected side, which is crucial in the management of neglect syndrome. Choice B is incorrect as assessing the client's body for bruising is not directly related to managing neglect syndrome. Choice C is incorrect as observing the interaction between the client and family members does not address the specific intervention needed for neglect syndrome. Choice D is incorrect because protecting the client's left side when transferring to a chair does not actively involve retraining the brain and improving awareness of the neglected side, which is the primary goal in managing neglect syndrome.

4. Based on the computer documentation in the EMR, which action should the PN implement?

Correct answer: A

Rationale: The rubella vaccine is crucial for preventing rubella infection, which can cause severe congenital disabilities if contracted during pregnancy. Administering the vaccine subcutaneously is the correct action based on EMR documentation. Observing breastfeeding, calling the nursery for blood type results, and administering pain medication are not indicated by the EMR documentation and are not relevant to the situation described in the question.

5. At the end of a 12-hour shift, the PN observes the urine in a client's drainage bag as seen in the picture. Which action should the PN take next?

Correct answer: D

Rationale: Noting the white blood cell count is the most appropriate action in this situation. Changes in urine appearance could indicate infection, and assessing the white blood cell count helps in evaluating the possibility of infection. This is crucial for understanding the client's overall condition. The other options are not directly related to assessing infection based on urine appearance. Offering analgesics, checking glucose levels, or determining bladder distention may not address the underlying issue of a potential infection.

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