HESI LPN
HESI PN Exit Exam 2024
1. 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.
2. What is the most common genetic cause of intellectual disability?
- A. Down syndrome
- B. Fragile X syndrome
- C. Prader-Willi syndrome
- D. Turner syndrome
Correct answer: B
Rationale: The correct answer is Fragile X syndrome because it is the most common inherited cause of intellectual disability, resulting from a mutation in the FMR1 gene. Down syndrome, Prader-Willi syndrome, and Turner syndrome are not the most common genetic causes of intellectual disability. Down syndrome is caused by the presence of an extra chromosome 21, Prader-Willi syndrome results from specific genetic abnormalities on chromosome 15, and Turner syndrome is characterized by the absence of part or all of one of the X chromosomes.
3. At one minute after birth, an infant is crying, has a heart rate of 140, has acrocyanosis, resists the suction catheter, and keeps his arms extended and his legs flexed. What is the Apgar score?
- A. 4
- B. 6
- C. 8
- D. 10
Correct answer: C
Rationale: The Apgar score is based on five components: heart rate, respiratory effort, muscle tone, reflex irritability, and color. In this case, the infant has a heart rate over 100 (2 points), is crying (2 points indicating good respiratory effort), resists the catheter (2 points for good reflex irritability), but has acrocyanosis (partial point deduction of 1). Thus, the Apgar score at one minute after birth would be 8. Choice A is incorrect as the given signs indicate a higher score. Choice B is incorrect as the signs described support a score above 6. Choice D is incorrect as it represents a perfect score which is not the case here due to acrocyanosis.
4. An adult client is undergoing weekly external radiation treatments for breast cancer. Upon arrival at the outpatient clinic for a scheduled treatment, the client reports increasing fatigue to the PN who is taking the client's vital signs. What action should the PN implement?
- A. Notify the healthcare provider or charge nurse immediately
- B. Offer to reschedule the treatment for the following week
- C. Plan to monitor the client's vital signs every 30 minutes
- D. Reinforce the need for extra rest periods and plenty of sleep
Correct answer: D
Rationale: When a client undergoing radiation therapy reports increasing fatigue, it is essential to address this common side effect. Educating the client on the importance of rest and sleep can help manage fatigue and promote recovery. Contacting the healthcare provider or charge nurse immediately may not be necessary unless fatigue is severe and other symptoms are present. Rescheduling the treatment or monitoring vital signs more frequently is not the priority in this situation.
5. Which condition is commonly screened for in newborns using the Guthrie test?
- A. Phenylketonuria (PKU)
- B. Cystic fibrosis
- C. Down syndrome
- D. Sickle cell anemia
Correct answer: A
Rationale: The Guthrie test is specifically designed to screen newborns for phenylketonuria (PKU), a metabolic disorder that can lead to intellectual disability if left untreated. Phenylketonuria is caused by the deficiency of an enzyme required to metabolize the amino acid phenylalanine. Screening for PKU in newborns is crucial as early diagnosis and intervention can prevent the severe consequences associated with the condition. Choices B, C, and D are incorrect as the Guthrie test is not used to screen for cystic fibrosis, Down syndrome, or sickle cell anemia.
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