HESI LPN
HESI Fundamentals Exam
1. A client who is postoperative is being taught how to use a flow-oriented incentive spirometer. Which of the following instructions should be included by the nurse?
- A. Cough deeply after each use.
- B. Take a deep breath and hold for 10 seconds.
- C. Breathe in slowly and deeply to raise the ball or piston.
- D. Exhale forcefully before using the spirometer.
Correct answer: C
Rationale: The correct technique for using a flow-oriented incentive spirometer involves breathing in slowly and deeply to raise the ball or piston. This action helps to expand the lungs and improve lung function. Option A is incorrect as coughing deeply after each use is not part of using the spirometer. Option B is incorrect as holding the breath for 10 seconds is not the correct instruction for using the spirometer. Option D is incorrect as exhaling forcefully before using the spirometer is not the appropriate step in using this device.
2. 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.
3. The nurse is caring for a patient who needs to be placed in the prone position. Which action will the nurse take?
- A. Place a pillow under the patient's lower legs.
- B. Turn the head toward one side with a large, soft pillow.
- C. Position legs flat against the bed.
- D. Raise the head of the bed to 45 degrees.
Correct answer: A
Rationale: Placing a pillow under the patient's lower legs when in the prone position is essential to allow dorsiflexion of the ankles and some knee flexion, which promote relaxation. This position also helps in maintaining proper alignment of the spine. Options B, C, and D are incorrect because turning the head, positioning legs flat against the bed, and raising the head of the bed to 45 degrees are not appropriate actions for a patient in the prone position. Turning the head to one side with a large, soft pillow is commonly done for patients in the supine position to maintain proper alignment and airway patency. Positioning legs flat against the bed is more suitable for a patient in a supine or semi-fowler's position. Raising the head of the bed to 45 degrees is typically done for patients who need semi-fowler's positioning for respiratory support or to prevent aspiration.
4. A 16-year-old enters the emergency department. The triage nurse identifies that this teenager is legally married and signs the consent form for treatment. What would be the appropriate action by the nurse?
- A. Ask the teenager to wait until a parent or legal guardian can be contacted
- B. Withhold treatment until telephone consent can be obtained from the partner
- C. Refer the teenager to a community pediatric hospital emergency department
- D. Proceed with the triage process in the same manner as any adult client
Correct answer: D
Rationale: The correct answer is to proceed with the triage process in the same manner as any adult client. In this scenario, since the teenager is legally married, they have the legal authority to consent to their own treatment. Choice A is incorrect because the teenager, being legally married, can provide their own consent. Choice B is incorrect as it unnecessarily delays treatment by waiting for telephone consent from the partner, which is not required in this case. Choice C is incorrect as the teenager can receive appropriate care in the current emergency department setting without the need for referral.
5. The healthcare provider is planning care for a 3-month-old infant immediately postoperative following placement of a ventriculoperitoneal shunt for hydrocephalus. The healthcare provider needs to
- A. Assess for abdominal distention
- B. Maintain the infant in an upright position
- C. Begin feeding formula when the infant is alert
- D. Pump the shunt to assess for proper function
Correct answer: A
Rationale: Assessing for abdominal distention is crucial in this situation as it can indicate a complication with the shunt or fluid accumulation. Abdominal distention may suggest an issue with the shunt placement, such as obstruction or overdrainage, which requires immediate intervention. Maintaining the infant in an upright position (Choice B) is not the priority immediately postoperatively following a ventriculoperitoneal shunt placement. Beginning formula feedings when the infant is alert (Choice C) may be appropriate but is not the priority over assessing for abdominal distention. Pumping the shunt to assess for proper function (Choice D) is not a recommended nursing intervention postoperatively and should be done by a qualified healthcare provider.
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