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. For an older postoperative client with the nursing diagnosis 'impaired mobility related to fear of falling,' which desired outcome best directs the nurse's actions for the client?

Correct answer: C

Rationale: Encouraging the client to use self-affirmation statements is the most appropriate desired outcome in this scenario. By utilizing self-affirmation statements, the client can address their fears directly and build confidence, which can ultimately lead to a reduction in fear of falling. While ambulating with assistance (choice A) is important, the focus here is on addressing the fear itself. Instructing the client in the use of a walker (choice B) and placing a gait belt on the client (choice D) are interventions that may be helpful but do not directly address the client's fear of falling.

3. The nurse is caring for an elderly female client who tells the nurse, 'When I sneeze, I wet my pants.' After discussing the client's complaint with the charge nurse, the nurse plans to reinforce teaching about the importance of Kegel exercises. What muscles are involved in these exercises?

Correct answer: D

Rationale: Kegel exercises involve the pelvic floor muscles. These muscles help strengthen the muscles controlling urination, potentially reducing symptoms of urinary incontinence. Pectoral muscles (Choice A), responsible for movement of the shoulders and arms, are not involved in Kegel exercises. Buttock muscles (Choice B) are primarily responsible for hip movement and stability, not related to Kegel exercises. Abdominal muscles (Choice C) support the core and trunk but are not the focus of Kegel exercises.

4. 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.

5. A male client attends a community support program for mentally impaired and chemically abusing clients. The client tells the PN that his drugs of choice are cocaine and heroin. What is the greatest health risk for this client?

Correct answer: B

Rationale: The correct answer is B: Hepatitis. Hepatitis is the greatest health risk for this client due to the potential for contracting the disease through needle-sharing, common among drug users. This can lead to serious liver complications. While hypertension, glaucoma, and diabetes are all important health concerns, they are not directly associated with the drug abuse mentioned in the scenario.

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