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 census on the unit is 90 percent, and there are no private rooms available. An elderly client with influenza is admitted. Which of the following rooms would it be appropriate to assign this client?
- A. A double room with a client admitted for impetigo.
- B. A double room with another client with the same diagnosis.
- C. A four-bed room with three clients who have had orthopedic surgery.
- D. A double room with an elderly client with a diagnosis of chickenpox.
Correct answer: B
Rationale: When a private room is not an option, the best choice is to assign the elderly client with influenza to a double room with another client diagnosed with the same condition. This is ideal as droplet precautions would likely already be in place for the other client, reducing the risk of spreading the infection to other clients in the unit. Choice A is not appropriate as impetigo does not require the same precautions as influenza. Choice C is not ideal as orthopedic surgery does not involve respiratory precautions. Choice D is incorrect because chickenpox requires airborne precautions, which could pose a risk to the elderly client with influenza.
3. The healthcare professional is preparing to administer 10 mL of liquid potassium chloride through a feeding tube, followed by 10 mL of liquid acetaminophen. Which action should the healthcare professional include in this procedure?
- A. Dilute each of the medications with sterile water prior to administration.
- B. Mix the medications in one syringe before opening the feeding tube.
- C. Administer water between the doses of the two liquid medications.
- D. Withdraw any fluid from the tube before instilling each medication.
Correct answer: C
Rationale: To maintain patency and ensure proper medication delivery, water should be instilled into the feeding tube between administering the two medications. This helps prevent clogging of the tube and ensures that both medications are delivered effectively without interference from remnants of the previous medication. Diluting the medications with sterile water before administration (choice A) is unnecessary and may alter the medication concentration. Mixing the medications in one syringe (choice B) could lead to interactions or chemical reactions between the medications. Withdrawing fluid from the tube before instilling each medication (choice D) is not required and may increase the risk of tube displacement or misplacement.
4. Following a craniotomy, why did the nurse position the client in low Fowler's position?
- A. To promote comfort.
- B. To promote drainage from the operation site.
- C. To promote thoracic expansion.
- D. To prevent circulatory overload.
Correct answer: B
Rationale: Positioning the client in low Fowler's position after a craniotomy is essential to promote drainage from the operation site. This position helps prevent fluid accumulation, facilitates the removal of excess fluid or blood, and aids in the healing process. Choice A is incorrect because comfort, while important, is not the primary reason for this specific positioning. Choice C is incorrect as thoracic expansion is not the main concern following a craniotomy. Choice D is incorrect as circulatory overload is not typically addressed by positioning in low Fowler's position post-craniotomy.
5. Which instruction is most important for the nurse to include when teaching a client with limited mobility strategies to prevent venous thrombosis?
- A. Perform cough and deep breathing exercises hourly.
- B. Turn from side to side in bed at least every 2 hours.
- C. Dorsiflex and plantarflex the feet 10 times each hour.
- D. Drink approximately 4 ounces of water every hour.
Correct answer: C
Rationale: The most crucial instruction for a client with limited mobility to prevent venous thrombosis is to perform dorsiflexion and plantarflexion of the feet 10 times each hour. These exercises help promote venous return, reducing the risk of thrombosis by preventing blood stasis in the lower extremities. While other measures like turning in bed and staying hydrated are beneficial, promoting venous return through foot exercises is the priority in preventing venous thrombosis in clients with limited mobility. Dorsiflexion and plantarflexion directly target the calf muscle pump, aiding in the circulation of blood back to the heart and preventing clot formation. The other options, such as cough and deep breathing exercises, turning in bed, and hydration, are important for overall health but do not directly address venous stasis and thrombosis prevention in the same way as foot exercises.
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