HESI LPN
Practice HESI Fundamentals Exam
1. During a physical assessment, a nurse is assessing 4 adult clients. Which of the following physical assessment techniques should the nurse use?
- A. Ensure the bladder of the BP cuff surrounds 80% of their arm.
- B. Use the BP cuff on the forearm if the upper arm is not accessible.
- C. Apply the BP cuff loosely around the arm.
- D. Use a pediatric cuff for adults with small arms.
Correct answer: A
Rationale: The correct answer is to ensure the bladder of the BP cuff surrounds 80% of the arm. This technique is crucial for obtaining accurate blood pressure readings. Choice B is incorrect because using the BP cuff on the forearm may lead to inaccurate readings. Choice C is incorrect as applying the BP cuff loosely can also result in inaccurate measurements. Choice D is incorrect because using a pediatric cuff for adults with small arms would not provide accurate blood pressure readings.
2. A client with rheumatoid arthritis is prescribed prednisone. What information should the LPN/LVN include when teaching the client about this medication?
- A. Take the medication with food to minimize gastrointestinal side effects.
- B. Avoid exposure to sunlight while taking this medication.
- C. Do not discontinue the medication abruptly.
- D. Increase fluid intake while taking this medication.
Correct answer: C
Rationale: The correct answer is C: 'Do not discontinue the medication abruptly.' It is crucial for clients prescribed prednisone to not stop the medication suddenly to prevent adrenal insufficiency, as this medication suppresses the body's natural production of cortisol. Choice A is incorrect because prednisone should be taken with food to minimize gastrointestinal side effects, not necessarily to prevent stomach upset. Choice B is incorrect as there is no specific need to avoid sunlight while taking prednisone. Choice D is not directly related to prednisone use; while adequate fluid intake is generally beneficial, it is not a specific instruction for prednisone administration.
3. While instructing a male client's wife in the performance of passive range-of-motion exercises to his contracted shoulder, the nurse observes that she is holding his arm above and below the elbow. What nursing action should the LPN/LVN implement?
- A. Acknowledge that she is supporting the arm correctly.
- B. Encourage her to keep the joint covered to maintain warmth.
- C. Reinforce the need to grip directly under the joint for better support.
- D. Instruct her to grip directly over the joint for better motion.
Correct answer: A
Rationale: Acknowledging that the client's wife is supporting the arm correctly is the appropriate nursing action in this scenario. By doing so, the nurse reinforces correct technique and promotes confidence. Choice B is incorrect as the issue is not about maintaining warmth. Choice C is incorrect as gripping directly under the joint is not necessary in this case. Choice D is incorrect as instructing to grip directly over the joint may not provide the best support for passive range-of-motion exercises.
4. While measuring a client’s oral temperature using an electronic thermometer, what action should the nurse take?
- A. Assist the client with oral hygiene before taking the temperature.
- B. Inquire whether the client has smoked in the last 30 minutes.
- C. Connect the red tip probe to the thermometer unit.
- D. Position the probe tip against the client’s buccal mucosa.
Correct answer: B
Rationale: The correct action for the nurse to take when measuring a client’s oral temperature using an electronic thermometer is to inquire whether the client has smoked in the last 30 minutes. Smoking can affect the accuracy of oral temperature readings. Providing oral hygiene (Choice A) is not directly related to ensuring accurate temperature measurement. Connecting the red tip probe (Choice C) is not specific to oral temperature measurement accuracy. Positioning the probe tip against the buccal mucosa (Choice D) is incorrect as oral temperature is typically measured under the tongue, not against the cheek.
5. 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.
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