HESI LPN
HESI Fundamentals Exam
1. The healthcare provider is preparing a client with deep vein thrombosis (DVT) for a Venous Doppler evaluation. Which of the following would be necessary for preparing the client for this test?
- A. Client should be NPO prior to the test
- B. Client should receive a sedative medication before the test
- C. Discontinue anticoagulant therapy before the test
- D. No special preparation is necessary
Correct answer: D
Rationale: No special preparation is required for a Venous Doppler evaluation. Option A is incorrect because there is no need for the client to be NPO (nothing by mouth) before this test. Option B is incorrect as sedative medication is not typically administered for a Venous Doppler evaluation. Option C is incorrect as discontinuing anticoagulant therapy before the test may not be safe for a client with DVT, as it could increase the risk of developing a blood clot. Therefore, the correct answer is D.
2. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
3. When changing a client's colostomy pouch and noticing peristomal skin irritation, which of the following actions should the nurse take?
- A. Change the pouch as needed based on individual requirements.
- B. Apply the pouch only when the skin barrier is completely dry.
- C. Pat the peristomal skin dry after cleaning.
- D. Ensure the pouch is 0.32 cm (1/8 in) larger than the stoma.
Correct answer: D
Rationale: When a nurse observes peristomal skin irritation while changing a client's colostomy pouch, it is crucial to ensure that the pouch is slightly larger (0.32 cm or 1/8 inch) than the stoma. This extra space helps prevent the pouch from rubbing against the stoma and causing further irritation. Option A is correct because colostomy pouches should be changed based on individual needs, not necessarily every 24 hours. Option B is incorrect because applying the pouch only when the skin barrier is completely dry ensures better adhesion. Option C is incorrect as patting the peristomal skin dry after cleaning is more gentle and less likely to cause irritation compared to rubbing.
4. In a disaster at a child day care center, which child would the triage nurse prioritize for treatment last?
- A. An infant with intermittent bulging anterior fontanel between crying episodes
- B. A toddler with severe deep abrasions covering 98% of the body
- C. A preschooler with a lower leg fracture and an upper leg fracture on the other leg
- D. A school-age child with singed eyebrows and hair on the arms
Correct answer: B
Rationale: The toddler with severe deep abrasions covering 98% of the body would be prioritized for treatment last because these extensive injuries may require immediate attention and resources. The other choices present serious conditions but are not as severe or life-threatening as the toddler's injuries. The infant with an intermittent bulging anterior fontanel may have signs of increased intracranial pressure, requiring prompt evaluation. The preschooler's fractures, though serious, can be managed without immediate critical intervention. The school-age child with singed eyebrows and hair may have suffered burns but does not exhibit injuries as severe as the toddler's deep abrasions.
5. A nurse receives a report about a client who has 0.9% sodium chloride infusing IV at 125 mL/hr. When the nurse performs the initial assessment, they note that the client has received only 80 mL over the last 2 hrs. Which of the following actions should the nurse take first?
- A. Check the IV tubing for obstruction
- B. Increase the infusion rate
- C. Administer a bolus of fluid
- D. Replace the IV catheter
Correct answer: A
Rationale: The correct first action for the nurse to take in this situation is to check the IV tubing for obstruction. By doing this, the nurse can assess if there is any blockage or kink in the tubing that is impeding the flow of the IV solution. This step is crucial as it helps in identifying the reason for the inadequate infusion rate. Increasing the infusion rate (Choice B) without first checking for obstructions can lead to potential complications if there is a blockage. Administering a bolus of fluid (Choice C) may not be appropriate without addressing the cause of the decreased infusion rate. Similarly, replacing the IV catheter (Choice D) is not the initial priority unless obstruction is ruled out and other troubleshooting measures have been taken.
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