HESI LPN
HESI Practice Test for Fundamentals
1. A client is to have mafenide (Sulfamylon) cream applied to burned areas. For which serious side effect of mafenide therapy should the LPN/LVN monitor this client?
- A. Curling ulcer
- B. Renal shutdown
- C. Metabolic acidosis
- D. Hemolysis of red blood cells
Correct answer: C
Rationale: Corrected Rationale: Metabolic acidosis is a serious side effect of mafenide therapy that should be closely monitored. Mafenide can lead to metabolic acidosis due to its inhibition of carbonic anhydrase, resulting in the accumulation of carbonic acid. Curling ulcer (Choice A) is a stress-related mucosal lesion that occurs in the duodenum, primarily due to severe burns, not directly related to mafenide therapy. Renal shutdown (Choice B) is not a common side effect of mafenide therapy. Hemolysis of red blood cells (Choice D) is not a recognized side effect of mafenide cream application.
2. A client who is lactating is being taught about taking medications by a nurse. Which of the following actions should the nurse recommend to minimize the entry of medication into breast milk?
- A. Drink 8 oz of water with each dose of medication.
- B. Use medications that have a short half-life.
- C. Take each dose right after breastfeeding.
- D. Pump breast milk and discard it prior to feeding the newborn.
Correct answer: C
Rationale: Taking medications immediately after breastfeeding helps minimize the amount of medication that enters breast milk. By doing so, there is a longer interval between the medication intake and the next breastfeeding session, reducing the concentration of the medication in breast milk. Options A and B are incorrect as drinking water with medication or using medications with a short half-life do not directly minimize the entry of medication into breast milk. Option D is unnecessary and wasteful as pumping and discarding breast milk before feeding is not as effective as timing medication intake with breastfeeding to reduce medication transfer into breast milk.
3. A healthcare professional working in the emergency department is witnessing the signing of informed consent forms for the treatment of multiple clients during their shift. Which of the following signatures may the healthcare professional legally witness?
- A. A 16-year-old client who is married
- B. A 27-year-old who has schizophrenia
- C. An adoptive parent who brings in their 8-year-old child
- D. A 17-year-old mother who brings in her toddler
Correct answer: A
Rationale: The correct answer is A. A 16-year-old who is married can legally sign an informed consent form. In this case, being married at 16 may indicate legal emancipation or the ability to consent to medical treatment. Choice B is incorrect because having schizophrenia doesn't automatically imply incapacity to provide informed consent. Choice C is incorrect as an adoptive parent does not have the legal authority to provide consent for medical treatment on behalf of a child without proper documentation. Choice D is incorrect as a 17-year-old mother would generally not have the legal capacity to give consent for her toddler, as parental consent is usually required for minors.
4. When evaluating a client's plan of care, the LPN determines that a desired outcome was not achieved. Which action will the LPN implement first?
- A. Establish a new nursing diagnosis.
- B. Note which actions were not implemented.
- C. Add additional nursing orders to the plan.
- D. Collaborate with the healthcare provider to make changes.
Correct answer: B
Rationale: The correct first action for the LPN to take when a desired outcome is not achieved is to note which actions were not implemented. This step helps in identifying gaps in the plan of care and reasons for not achieving the desired outcome. Establishing a new nursing diagnosis (Choice A) is not the initial step when evaluating the plan of care. Adding additional nursing orders (Choice C) may not address the root cause of the unachieved outcome. Collaborating with the healthcare provider (Choice D) should come after identifying the gaps in the plan and reasons for the outcome not being met.
5. A client who is unstable and requires frequent vital signs has an electronic blood pressure machine automatically measuring his blood pressure every 15 min. However, the machine is reading the client’s blood pressure at more frequent intervals, and the readings are not similar. The nurse checks the machine settings and observes the additional readings, but the problem continues. Which of the following is the appropriate nursing action?
- A. Notify the manufacturer
- B. Disconnect the machine, and measure the blood pressure manually every 15 min
- C. Adjust the machine settings again
- D. Ignore the extra readings
Correct answer: B
Rationale: The correct action in this scenario is to disconnect the electronic blood pressure machine and measure the client's blood pressure manually every 15 minutes. Given that the machine is malfunctioning and providing inconsistent readings, relying on manual measurements ensures accuracy and maintains the quality of care. Notifying the manufacturer (Choice A) may be necessary in the long run, but the immediate concern is the accuracy of the vital signs. Adjusting the machine settings again (Choice C) without resolving the underlying issue would not address the problem. Ignoring the extra readings (Choice D) could lead to incorrect assessment and compromise patient care. Therefore, the best course of action is to disconnect the machine and opt for manual blood pressure measurements until the issue is resolved.
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