HESI PN Exit Exam 2024

HESI LPN

1. At what age does a 9-year-old child typically lose which of the following teeth?

A. Central incisor
B. Second molar
C. Lateral incisor
D. Cuspid

Correct answer: A

Rationale: A 9-year-old child typically loses their central incisors, not the lateral incisors or second molars. The central incisors are usually among the first teeth that children lose around 6 to 7 years of age, as part of the natural process of shedding primary teeth to make way for permanent teeth. The second molars and cuspids are typically lost later in the mixed dentition phase. Therefore, option A, 'Central incisor,' is the correct answer.

2. What is the primary cause of diabetic ketoacidosis (DKA)?

A. Insulin deficiency
B. Overhydration
C. Excess carbohydrate intake
D. Excess insulin

Correct answer: A

Rationale: The correct answer is A: Insulin deficiency. Diabetic ketoacidosis occurs due to a severe lack of insulin, causing the body to break down fat for energy, leading to the production of ketones and acidification of the blood. Option B, Overhydration, is incorrect as DKA is characterized by dehydration rather than overhydration. Option C, Excess carbohydrate intake, is incorrect because while high blood sugar levels can contribute to DKA, the primary cause is insulin deficiency. Option D, Excess insulin, is also incorrect as DKA is not caused by an excess of insulin but rather by a lack of it.

3. The PN observes a UAP preparing to exit a client's room. The UAP's hands appear visibly soiled as the UAP uses a hand rub for 19 seconds to cleanse the hands. Which action should the PN take?

A. Confirm that the UAP completed hand hygiene correctly
B. Instruct the UAP to wash the hands for one minute
C. Ask the UAP why the hands were so obviously soiled
D. Advise the UAP to use the hand rub for 30 seconds

Correct answer: D

Rationale: When hands are visibly soiled, they should be washed with soap and water for at least 20 seconds. However, when using hand rub, it should be applied for at least 30 seconds to be effective. In this scenario, the UAP's hands were visibly soiled, indicating the need for thorough cleaning. Advising the UAP to use the hand rub for 30 seconds is essential to ensure proper hand hygiene and reduce the risk of spreading infection. Choices A, B, and C are incorrect because confirming completion of hand hygiene, instructing to wash for one minute, or asking why the hands were soiled do not address the immediate need for proper hand hygiene in the given situation.

4. What is the primary purpose of performing range-of-motion (ROM) exercises?

A. To improve cardiovascular fitness
B. To prevent muscle atrophy and joint contractures
C. To increase respiratory function
D. To enhance cognitive function

Correct answer: B

Rationale: The primary purpose of performing range-of-motion (ROM) exercises is to prevent muscle atrophy and joint contractures. These exercises are crucial in maintaining joint mobility and muscle flexibility, especially in patients who are immobilized or have limited mobility. Improving cardiovascular fitness (Choice A) involves different types of exercises that target the heart and blood vessels, not specifically ROM exercises. Increasing respiratory function (Choice C) is typically achieved through breathing exercises and activities that enhance lung capacity. Enhancing cognitive function (Choice D) is usually addressed through cognitive exercises and activities that stimulate brain function.

5. While turning and positioning a bedfast client, the PN observes that the client is dyspneic. Which action should the PN take first?

A. Apply a pulse oximeter
B. Measure blood pressure
C. Notify the charge nurse
D. Observe pressure areas

Correct answer: C

Rationale: Notifying the charge nurse promptly is the priority when a bedfast client is dyspneic. Dyspnea can indicate a serious problem that requires immediate assessment and intervention. Contacting the charge nurse ensures timely assistance and appropriate actions to address the client's condition. Applying a pulse oximeter or measuring blood pressure may provide valuable data, but the priority is prompt communication with the charge nurse to ensure quick intervention. Observing pressure areas, while important for overall client care, is not the most immediate action needed when a client is experiencing dyspnea.