HESI LPN
HESI Pharmacology Exam Test Bank
1. A client arrives at the emergency department experiencing diabetic ketoacidosis (DKA). The healthcare provider prescribes an insulin intravenous drip. Which type of insulin should the nurse locate for the registered nurse to mix into the intravenous fluids?
- A. Isophane
- B. Glargine
- C. Regular
- D. Detemir
Correct answer: C
Rationale: The correct insulin type for the nurse to mix into the intravenous fluids is regular insulin. In the scenario of diabetic ketoacidosis (DKA), rapid reduction of blood glucose levels is crucial. Regular insulin has a fast onset of action, making it suitable for intravenous administration to address the high blood sugar levels seen in DKA. Isophane, Glargine, and Detemir are not appropriate choices for intravenous administration in this emergency situation as they are intermediate-acting or long-acting insulins which do not provide the rapid response needed in DKA.
2. A client diagnosed with a deep vein thrombus (DVT) followed by a diagnosis of pulmonary embolism (PE) is receiving heparin via an infusion pump at a rate of 1400 u/hour. The client tells the nurse, “I wish this medicine would hurry up and dissolve this clot in my lung so that I can go home”. What response is best for the nurse to provide?
- A. Heparin prevents further clot formation, but your risk of bleeding needs to be monitored closely
- B. You seem to be concerned about the length of time it takes for Heparin to dissolve this clot
- C. Let me contact your healthcare provider to discuss the possibility of receiving IV heparin therapy at home
- D. Why are you so anxious to leave the hospital when you know you are not well enough yet?
Correct answer: A
Rationale: The correct response is A: 'Heparin prevents further clot formation, but your risk of bleeding needs to be monitored closely.' Heparin is an anticoagulant that prevents further clot formation, but it does not quickly dissolve existing clots. It is crucial for the nurse to educate the client about the purpose of heparin and the necessity for close monitoring of bleeding risks. Choice B is incorrect as it does not address the misunderstanding about heparin's mechanism of action. Choice C is incorrect as home administration of IV heparin therapy requires careful consideration and should not be suggested without a thorough assessment. Choice D is incorrect as it does not address the client's misconception about heparin's role in dissolving clots and instead focuses on the client's desire to leave the hospital.
3. What is the primary purpose of a chest tube in a client's care?
- A. To drain air and fluid from the pleural space
- B. To prevent infection in the thoracic cavity
- C. To assist with lung expansion
- D. To monitor intrathoracic pressure
Correct answer: A
Rationale: The correct answer is A: To drain air and fluid from the pleural space. A chest tube is primarily used to remove accumulated air or fluid in the pleural space, preventing lung collapse or compromise of lung function. This intervention aims to re-expand the lung and enhance respiratory function. Choice B is incorrect because preventing infection is not the primary purpose of a chest tube. Choice C is incorrect as lung expansion is a result of draining the pleural space, not the primary goal. Choice D is incorrect as monitoring intrathoracic pressure is not the main objective of a chest tube insertion.
4. A nurse is preparing a client for surgery. The client has signed the consent form but tells the nurse that she has reconsidered because she is worried about the pain. Which of the following responses by the nurse is appropriate?
- A. If you have the procedure now, you won't have to deal with pain and disability later.
- B. You'll be fine. You'll receive a prescription for pain medication.
- C. Why didn't you discuss your concerns with your provider?
- D. I understand and it's not too late to change your mind.
Correct answer: D
Rationale: The appropriate response acknowledges the client's concern and confirms that they have the right to change their mind.
5. A client has developed thrombophlebitis of the left leg. Which nursing intervention should be given the highest priority?
- A. Elevate leg on 2 pillows
- B. Apply support stockings
- C. Apply warm compresses
- D. Maintain complete bed rest
Correct answer: A
Rationale: The highest priority nursing intervention for a client with thrombophlebitis of the left leg is to elevate the leg on 2 pillows. Elevating the leg helps reduce swelling and pain associated with thrombophlebitis by promoting venous return. Applying support stockings (choice B) can be beneficial but is not the highest priority as elevation is more effective in the acute phase. Applying warm compresses (choice C) may worsen the condition by dilating the blood vessels, leading to increased pain and swelling. Maintaining complete bed rest (choice D) is important, but elevation takes precedence to improve circulation and reduce the risk of complications.