HESI LPN
HESI Fundamental Practice Exam
1. What intervention should be taken to minimize the risk for injury in a client with dementia?
- A. Use a bed exit alarm system.
- B. Place the client in restraints for safety.
- C. Ensure the client has frequent visitors to reduce isolation.
- D. Keep the client's room dark and quiet at night.
Correct answer: A
Rationale: The correct intervention to minimize the risk for injury in a client with dementia is to use a bed exit alarm system. Bed exit alarms are effective tools to alert healthcare providers when a client attempts to get out of bed, helping prevent falls and injuries. Placing the client in restraints (Choice B) is not the preferred method as it can lead to physical and psychological harm, restrict mobility, and increase agitation. While social interaction is important for clients with dementia, ensuring frequent visitors (Choice C) is not directly related to preventing physical injuries. Keeping the client's room dark and quiet at night (Choice D) may be soothing for some clients but does not directly address the risk for injury associated with dementia.
2. A healthcare professional is preparing to insert an IV catheter into a client’s arm prior to initiating IV fluid therapy. Which of the following interventions should the healthcare professional implement to prevent infection?
- A. Thread the catheter up to the hub
- B. Use a sterile technique throughout the procedure
- C. Clean the insertion site with alcohol only
- D. Use gloves but not a mask during the procedure
Correct answer: B
Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.
3. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?
- A. Blood glucose of 350 mg/dL
- B. Serum bicarbonate of 18 mEq/L
- C. Arterial pH of 7.20
- D. Serum potassium of 5.5 mEq/L
Correct answer: C
Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.
4. During an abdominal assessment for an adult client, what is the correct sequence of steps?
- A. Inspect, Auscultate, Percuss, Palpate
- B. Palpate, Percuss, Inspect, Auscultate
- C. Auscultate, Inspect, Percuss, Palpate
- D. Percuss, Palpate, Inspect, Auscultate
Correct answer: A
Rationale: The correct sequence for an abdominal assessment in an adult client is to first Inspect the abdomen for any visible abnormalities, then Auscultate to listen for bowel sounds, followed by Percussion to assess for organ size and presence of fluid or masses, and finally Palpation to feel for tenderness, masses, or organ enlargement. Choice A, 'Inspect, Auscultate, Percuss, Palpate,' is the correct sequence for an abdominal assessment. Choices B, C, and D are incorrect because they do not follow the recommended sequence of assessment. Palpation should be the last step as it can potentially alter bowel sounds and percussion findings if done before. This deviation can lead to missing important findings or inaccurate assessment results.
5. During a Weber test, what is an appropriate action for the nurse to take?
- A. Deliver a series of high-pitched sounds at random intervals.
- B. Place an activated tuning fork in the middle of the client's forehead.
- C. Hold an activated tuning fork against the client's mastoid process.
- D. Whisper a series of words softly into one ear.
Correct answer: B
Rationale: During a Weber test, the nurse should place an activated tuning fork in the middle of the client's forehead. This test is used to assess for lateralization of sound in a client with possible hearing issues. Choice A is incorrect because the Weber test does not involve delivering high-pitched sounds at random intervals. Choice C is incorrect as it describes the Rinne test, not the Weber test. Choice D is incorrect as whispering words into one ear is not part of the Weber test procedure.
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