HESI LPN
Medical Surgical HESI
1. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
2. Based on this strip, what is the correct interpretation of this rhythm?
- A. Atrial fibrillation.
- B. Premature atrial fibrillation.
- C. AV block.
- D. Ventricular tachycardia.
Correct answer: A
Rationale: The correct interpretation of the rhythm strip is atrial fibrillation. This arrhythmia is characterized by an irregular heartbeat and the absence of distinct P waves. Choice B, premature atrial fibrillation, is incorrect as there is no indication of premature beats in the strip. Choice C, AV block, is also incorrect as there is no evidence of conduction delays between the atria and ventricles. Choice D, ventricular tachycardia, is not supported by the absence of wide QRS complexes typically seen in this arrhythmia.
3. A client with COPD is receiving home oxygen therapy. Which instruction is most important for the nurse to include in the discharge teaching?
- A. Increase oxygen flow rate during physical activity
- B. Smoke at least 10 feet away from the oxygen source
- C. Use petroleum jelly to prevent nasal dryness
- D. Ensure the oxygen tank is stored in a secure upright position
Correct answer: D
Rationale: The most important instruction for the nurse to include in the discharge teaching for a client with COPD receiving home oxygen therapy is to ensure the oxygen tank is stored in a secure upright position. This is crucial to prevent accidents such as leaks or falls that can lead to serious injury or damage. Choice A is incorrect as increasing the oxygen flow rate during physical activity without a healthcare provider's guidance can be harmful. Choice B is incorrect as smoking near an oxygen source can cause a fire hazard. Choice C is incorrect as petroleum jelly is flammable and should not be used around oxygen due to the risk of combustion.
4. While performing a skin assessment on an older adult, the nurse notices a number of irregular round brownish-colored lesions on the client’s hands, arms, and face. On palpation, they are flat and slightly rough to the touch. Based on this assessment finding, which action should the nurse implement?
- A. Apply a topical antibiotic ointment.
- B. Monitor the lesions for changes.
- C. Advise the client to use sunscreen.
- D. Refer the client for a skin lesion biopsy.
Correct answer: D
Rationale: Referral for a skin biopsy is necessary to rule out potential malignancy of irregular skin lesions. Applying a topical antibiotic ointment (Choice A) is not indicated for irregular pigmented lesions. Monitoring the lesions for changes (Choice B) may delay appropriate intervention if malignancy is present. Advising the client to use sunscreen (Choice C) is important for sun protection but is not the priority when irregular lesions are present.
5. Parents of a school-age child ask the nurse for suggestions in helping the child who is demonstrating school avoidance. What is an appropriate suggestion by the nurse?
- A. Take the child to the healthcare provider for testing.
- B. Be firm and insist the child go to school.
- C. Allow the child to stay home and rest.
- D. Consult with the teacher at school.
Correct answer: B
Rationale: When a child is demonstrating school avoidance, it is important for parents to be firm and insist that the child go to school. This helps establish a routine and prevents the behavior from becoming a pattern. Taking the child to the healthcare provider for testing (Choice A) may not be necessary at this stage as school avoidance is a behavioral issue. Allowing the child to stay home and rest (Choice C) may reinforce the avoidance behavior. While consulting with the teacher at school (Choice D) is important, the immediate focus should be on addressing the avoidance behavior at home.
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