HESI LPN
HESI PN Exit Exam 2023
1. Which of the following is MOST LIKELY to increase the risk of a medication error?
- A. Not using abbreviations for medications
- B. Errors in the calculation of medication dosages
- C. Barcoding medication orders
- D. Utilizing unit dose dispensers
Correct answer: B
Rationale: Errors in the calculation of medication dosages are a significant risk factor for medication errors. When dosage calculations are incorrect, it can lead to administering the wrong amount of medication, posing serious harm to the patient. Avoiding abbreviations for medications, barcoding medication orders, and utilizing unit dose dispensers are all strategies aimed at reducing medication errors by enhancing accuracy and safety. Therefore, choices A, C, and D are incorrect as they are practices that help decrease, rather than increase, the risk of medication errors.
2. A client with uterine cancer asks the nurse, 'Which is the most common type of cancer in women?' The nurse replies that it is breast cancer. Which type of cancer causes the most deaths in women?
- A. Breast cancer
- B. Lung cancer
- C. Brain cancer
- D. Colon and rectal cancer
Correct answer: B
Rationale: Lung cancer is the leading cause of cancer-related deaths in women, surpassing even breast cancer. While breast cancer is more common, it is often detected early enough for effective treatment. Lung cancer, on the other hand, tends to be diagnosed at later stages, leading to higher mortality rates. Brain cancer and colon and rectal cancer are not the leading causes of cancer-related deaths in women, making them incorrect choices.
3. 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.
4. A client with a chest tube following a pneumothorax is concerned about the continuous bubbling in the water seal chamber. What should the nurse explain to the client?
- A. Continuous bubbling in the water seal chamber indicates an air leak.
- B. Continuous bubbling is normal and expected with a chest tube.
- C. Bubbling will stop when the lung has fully expanded.
- D. The nurse should notify the healthcare provider immediately.
Correct answer: A
Rationale: Continuous bubbling in the water seal chamber of a chest tube system indicates an air leak. An air leak can prevent the lung from fully re-expanding and may lead to complications like a recurrent pneumothorax. Therefore, it is crucial to investigate and address the air leak promptly. Choices B and C are incorrect because continuous bubbling is not normal and does not indicate lung expansion. Choice D is incorrect because the nurse should first assess and then report the issue to the healthcare provider.
5. While performing an inspection of a client's fingernails, the PN observes a suspected abnormality of the nail's shape and character. Which finding should the PN document?
- A. Clubbed nails
- B. Splinter hemorrhages
- C. Longitudinal ridges
- D. Koilonychia or spoon nails
Correct answer: A
Rationale: The correct answer is A: Clubbed nails. Clubbed nails are a significant finding often associated with chronic hypoxia or lung disease. The presence of clubbed nails should be documented for further evaluation. Splinter hemorrhages (Choice B) are tiny areas of bleeding under the nails and are associated with conditions like endocarditis. Longitudinal ridges (Choice C) are common and often a normal finding in older adults. Koilonychia or spoon nails (Choice D) refer to nails that are concave or scooped out, often seen in conditions like iron deficiency anemia or hemochromatosis. These conditions are not typically associated with chronic hypoxia or lung disease, making them less likely findings in this situation.
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