HESI RN
HESI Fundamentals Practice Exam
1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which intervention should the nurse implement first?
- A. Administer regular insulin IV.
- B. Administer IV fluids at 250 ml/hr.
- C. Administer sodium bicarbonate IV push.
- D. Administer furosemide (Lasix) IV push.
Correct answer: A
Rationale: Administering regular insulin IV (A) is the initial intervention for a client with diabetic ketoacidosis (DKA) to rapidly reduce blood glucose levels. This is vital in reversing the ketosis and acidosis seen in DKA. Administering IV fluids (B) helps to correct dehydration and electrolyte imbalances. Administering sodium bicarbonate (C) and furosemide (D) may be necessary depending on the client's condition, but insulin administration takes precedence in the management of DKA.
2. The healthcare professional is administering an intermittent infusion of an antibiotic to a client with an antecubital saline lock. After opening the roller clamp on the IV tubing, the alarm on the infusion pump indicates an obstruction. What action should be taken first?
- A. Check for a blood return.
- B. Reposition the client's arm.
- C. Remove the IV site dressing.
- D. Flush the lock with saline.
Correct answer: B
Rationale: Repositioning the client's arm is the initial action to take when encountering an obstruction with an antecubital saline lock. Repositioning may correct any bending at the elbow that could be causing the obstruction, allowing for smoother infusion flow. Checking for a blood return, removing the IV site dressing, or flushing the lock with saline would be subsequent actions once the obstruction is addressed. Checking for a blood return is done to confirm proper placement, removing the IV site dressing is necessary for site assessment, and flushing the lock with saline helps maintain patency but should not be the first action when an obstruction is detected.
3. While suctioning a client’s nasopharynx, the nurse observes that the client’s oxygen saturation remains at 94%, which is the same reading obtained prior to starting the procedure. What action should the nurse take in response to this finding?
- A. Complete the intermittent suction of the nasopharynx.
- B. Reposition the pulse oximeter clip to obtain a new reading.
- C. Stop suctioning until the pulse oximeter reading is above 95%.
- D. Apply an oxygen mask over the client’s nose and mouth.
Correct answer: A
Rationale: A stable oxygen saturation reading of 94% indicates that the nurse can continue with the suctioning procedure. It is within an acceptable range, and there is no immediate need to interrupt the procedure. Continuing with the suctioning will help maintain airway patency and promote adequate oxygenation. Choice B is incorrect because repositioning the pulse oximeter clip is unnecessary when the reading is stable. Choice C is incorrect as there is no evidence to support stopping the suctioning procedure solely based on the oxygen saturation reading of 94%. Choice D is not the best action at this point, as applying an oxygen mask is not indicated when the oxygen saturation is stable and within an acceptable range.
4. The patient had a CVA and developed right-sided hemiplegia. Which action is least appropriate for the nurse to take?
- A. Performing ROM exercises during bathing.
- B. Changing the patient's position every two hours.
- C. Suctioning the patient supine and tightly pulling the bed sheets across their feet.
- D. Placing the patient in the prone position for one hour three times a day.
Correct answer: C
Rationale: Suctioning the patient in a supine position and pulling the bed sheets tightly across their feet can lead to foot drop, which is harmful for a patient with right-sided hemiplegia. This action can exacerbate muscle weakness and impair circulation in the affected limb. It is crucial to avoid actions that may compromise the patient's safety and well-being, such as causing foot drop in this scenario.
5. The healthcare professional retrieves hydromorphone 4mg/mL from the Pyxis MedStation, an automated dispensing system, for a client who is receiving hydromorphone 3 mg IM 6 hours PRN for severe pain. How many mL should the healthcare professional administer to the client? (Enter the numerical value only. If rounding is required, round to the nearest tenth)
- A. 0.8 mL
- B. 0.75 mL
- C. 0.7 mL
- D. 0.9 mL
Correct answer: A
Rationale: To calculate the mL to administer, divide the ordered dose (3 mg) by the concentration (4 mg/mL). 3 mg ÷ 4 mg/mL = 0.75 mL. Rounding to the nearest tenth, the correct dose to administer is 0.8 mL.
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