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. Which electrolyte imbalance is most likely to cause cardiac arrhythmias?
- A. Hyperkalemia
- B. Hypocalcemia
- C. Hypernatremia
- D. Hypokalemia
Correct answer: A
Rationale: Hyperkalemia is the correct answer as it can lead to dangerous cardiac arrhythmias due to its effects on the electrical conduction of the heart. High levels of potassium can disrupt the normal electrical activity of the heart, potentially leading to life-threatening arrhythmias. Hypocalcemia (choice B) is not the most likely cause of cardiac arrhythmias compared to hyperkalemia. Hypernatremia (choice C), referring to high sodium levels, is not directly associated with causing cardiac arrhythmias. While hypokalemia (choice D), low potassium levels, can also lead to cardiac arrhythmias, hyperkalemia is the more likely culprit in causing severe disturbances in heart rhythm.
3. 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.
4. A female client who has been taking oral contraceptives for the past year comes to the clinic for an annual exam. Which finding is most important for the PN to report to the HCP?
- A. Breast tenderness
- B. Change in menstrual flow
- C. Left calf pain
- D. Weight gain of 5 pounds
Correct answer: C
Rationale: Left calf pain could indicate deep vein thrombosis (DVT), a serious side effect of oral contraceptives. Reporting this finding to the healthcare provider is critical for further evaluation and treatment. Breast tenderness and change in menstrual flow are common side effects of oral contraceptives and may not be as urgent as left calf pain. Weight gain of 5 pounds, while noteworthy, is not as concerning as a possible indication of DVT.
5. An adult client is undergoing weekly external radiation treatments for breast cancer and reports increasing fatigue. What action should the nurse take?
- 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: The correct action for the nurse to take when a client undergoing radiation treatment for breast cancer reports increasing fatigue is to reinforce the need for extra rest periods and plenty of sleep. Fatigue is a common side effect of radiation therapy, and adequate rest and sleep can help manage this symptom. Notifying the healthcare provider or charge nurse immediately (choice A) is not necessary for increasing fatigue, as it is expected during radiation therapy. Offering to reschedule the treatment for the following week (choice B) is not the best initial action for managing fatigue. Planning to monitor the client's vital signs every 30 minutes (choice C) is unnecessary and not directly related to managing fatigue caused by radiation therapy.
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