HESI LPN
HESI Fundamental Practice Exam
1. A nurse is caring for an older, immobile patient whose condition requires a supine position. Which metabolic alteration will the nurse monitor for in this patient?
- A. Increased appetite
- B. Increased diarrhea
- C. Increased metabolic rate
- D. Increased pulse rate
Correct answer: D
Rationale: When an older, immobile patient is in a supine position, it increases cardiac workload, leading to an increased pulse rate. This is because the heart rate in older adults may not tolerate the additional workload. Choices A, B, and C are incorrect because an increased appetite, increased diarrhea, and increased metabolic rate are not directly associated with being immobile in a supine position. Increased appetite is more related to nutritional needs or certain medical conditions, increased diarrhea could be due to various causes, and an increased metabolic rate is not typically a direct consequence of lying supine.
2. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
3. The client is receiving discharge instructions for a new antihypertensive medication. Which statement by the client indicates a need for further teaching?
- A. I will stop taking the medication if I experience dizziness.
- B. I will monitor my blood pressure regularly.
- C. I will avoid drinking alcohol while taking this medication.
- D. I will rise slowly from a sitting to a standing position.
Correct answer: A
Rationale: The correct answer is A. Stopping antihypertensive medication abruptly can lead to rebound hypertension, which can be dangerous. Clients should never discontinue their medication without consulting their healthcare provider first. Choice B is correct because monitoring blood pressure is essential when taking antihypertensive medication to ensure it stays within the target range. Choice C is correct as alcohol can potentiate the hypotensive effects of antihypertensive medications. Choice D is correct as orthostatic hypotension can occur, so rising slowly helps prevent dizziness and falls. Therefore, choice A is the statement that indicates a need for further teaching.
4. 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.
5. How should the nurse transcribe the dosage of this medication on the client's medical record?
- A. 0.3 mg
- B. 0.3 mg
- C. 0.30 mg
- D. 3/10 mg
Correct answer: B
Rationale: The correct way to transcribe the dosage of three tenths of a milligram of levothyroxine IV STAT is 0.3 mg. When expressing decimals less than 1, there should be a leading zero before the decimal point. Choice A is incorrect (.3 mg) because it lacks the leading zero. Choice C (0.30 mg) is incorrect as it includes a trailing zero after the decimal point, which is unnecessary. Choice D (3/10 mg) is incorrect as it presents the dosage as a fraction, which is not the standard format for transcribing medication dosages. Therefore, B (0.3 mg) is the most appropriate and accurate way to document this prescription on the client's medical record.
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