what is the primary function of hemoglobin in red blood cells
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Nursing Elites

HESI LPN

HESI PN Exit Exam 2023

1. What is the primary function of hemoglobin in red blood cells?

Correct answer: A

Rationale: The correct answer is A: Oxygen transport. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to tissues throughout the body, releasing it where needed. This process is essential for cellular respiration and energy production. Choices B, C, and D are incorrect because hemoglobin's primary function is not related to immunity, blood clotting, or carbon dioxide transport. Hemoglobin's main role is to transport oxygen, ensuring adequate oxygen supply to body tissues for metabolic processes.

2. Which type of isolation is required for a patient with measles?

Correct answer: B

Rationale: The correct answer is B: Airborne isolation. Measles is highly contagious and can be transmitted through airborne particles, so airborne isolation is necessary to prevent its spread. Choice A, Contact isolation, is incorrect because measles is not primarily transmitted through direct contact. Choice C, Droplet isolation, is also incorrect as measles is not transmitted through large droplets but through smaller airborne particles. Choice D, Reverse isolation, is used to protect a patient from outside infections, not to prevent the spread of a contagious disease like measles.

3. Which information should the nurse collect during the admission assessment of a terminally ill client to an acute care facility?

Correct answer: B

Rationale: During the admission assessment of a terminally ill client, it is crucial for the nurse to collect the client's wishes regarding organ donation. This information is vital to ensure that the care provided aligns with the client's values and preferences. Option A, 'Name of funeral home to contact,' is not a priority during the admission assessment and can be addressed later. Option C, 'Contact information for the client's next of kin,' is important but not as critical as understanding the client's wishes regarding organ donation. Option D, 'Healthcare proxy information,' is important for decision-making if the client is unable to make healthcare decisions, but knowing the client's wishes regarding organ donation takes precedence in this scenario.

4. Which type of isolation precaution is required for a patient with tuberculosis (TB)?

Correct answer: C

Rationale: The correct answer is C: Airborne precautions. Tuberculosis (TB) is transmitted via airborne particles, thus requiring airborne precautions to prevent the spread of infection. This includes using an N95 respirator to filter out small infectious particles. Droplet precautions (Choice A) are used for diseases that spread through large respiratory droplets. Contact precautions (Choice B) are for direct or indirect contact with the patient or their environment. Standard precautions (Choice D) are used for all patients to prevent the spread of infection through blood, bodily fluids, non-intact skin, and mucous membranes.

5. The nurse assigns a UAP to assist with the personal care of a client experiencing an acute exacerbation of multiple sclerosis. Which instruction should the nurse provide the UAP?

Correct answer: B

Rationale: The correct instruction for the UAP to provide when assisting a client experiencing an acute exacerbation of multiple sclerosis is to encourage self-care but allow rest periods. Clients with multiple sclerosis often experience fatigue, so promoting self-care activities while ensuring they have adequate rest periods is crucial for symptom management and maintaining independence. Choice A is incorrect as hot baths can potentially exacerbate symptoms in clients with multiple sclerosis. Choice C is unrelated to the client's care needs during an acute exacerbation of multiple sclerosis. Choice D is not a priority instruction in this situation and may not directly impact the client's immediate care needs.

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