HESI LPN
HESI Practice Test for Fundamentals
1. A nurse is reviewing the correct use of a fire extinguisher with a client. Which of the following actions should the nurse direct the client to take first?
- A. Remove the safety pin from the extinguisher.
- B. Aim the extinguisher at the base of the fire.
- C. Squeeze the handle to release the extinguishing agent.
- D. Sweep the extinguisher from side to side.
Correct answer: A
Rationale: The correct first step in using a fire extinguisher is to remove the safety pin. This action enables the extinguisher to be activated and used effectively. Choice B, aiming the extinguisher at the base of the fire, comes after removing the safety pin. Choice C, squeezing the handle to release the extinguishing agent, and choice D, sweeping the extinguisher from side to side, are subsequent steps in using a fire extinguisher and should follow removing the safety pin.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which statement by the client indicates a need for further teaching?
- A. I will avoid foods high in vitamin K.
- B. I will take my medication at the same time every day.
- C. I will use a soft toothbrush to prevent gum bleeding.
- D. I can take aspirin if I have a headache.
Correct answer: D
Rationale: The correct answer is 'D: I can take aspirin if I have a headache.' This statement indicates a need for further teaching because aspirin can increase the risk of bleeding in clients taking warfarin. Clients on warfarin therapy should avoid taking aspirin or any other medications that can increase the risk of bleeding without consulting their healthcare provider. Choices A, B, and C are correct statements that demonstrate understanding of warfarin therapy and its potential side effects. Avoiding foods high in vitamin K helps maintain the effectiveness of warfarin, taking medication at the same time every day ensures consistent therapeutic levels, and using a soft toothbrush helps prevent gum bleeding, which can be a side effect of warfarin therapy.
3. The healthcare provider is assessing a client who has a chest tube in place following a pneumothorax. Which finding should be reported to the healthcare provider immediately?
- A. Bubbling in the water seal chamber
- B. Drainage greater than 70 ml/hour
- C. Tidaling in the water seal chamber
- D. Absence of breath sounds on the affected side
Correct answer: D
Rationale: The absence of breath sounds on the affected side is a critical finding that may indicate a tension pneumothorax, a life-threatening condition requiring immediate intervention. This situation can lead to a shift of the mediastinum and impaired ventilation. Bubbling in the water seal chamber is an expected finding in a chest tube drainage system and indicates proper functioning. Drainage greater than 70 ml/hour is a concern but does not require immediate reporting unless it continues at a high rate or is associated with other symptoms. Tidaling in the water seal chamber is a normal fluctuation and indicates the chest tube system is patent and functioning correctly.
4. During an IV catheter insertion demonstration, which statement by a nurse indicates understanding of the procedure?
- A. “I will thread the needle into the vein at an angle of 10 to 30 degrees with the bevel up.â€
- B. “I will insert the needle into the client’s skin at an angle of 10 to 30 degrees with the bevel up.â€
- C. “I will apply pressure approximately 1.2 inches below the insertion site before removing the needle.â€
- D. “I will select a vein in the antecubital fossa for IV insertion based on its size and easily accessible location.â€
Correct answer: B
Rationale: The correct technique for IV catheter insertion involves inserting the needle at a 10 to 30-degree angle with the bevel up. This angle facilitates proper vein puncture, reduces the risk of complications, and minimizes trauma to the vein. Choice A is incorrect because threading the needle into the vein at an angle of 10 to 30 degrees with the bevel up is the correct technique, not threading it all the way into the vein. Choice C is incorrect because applying pressure 1.2 inches below the insertion site before removing the needle is not a standard step in IV catheter insertion. Choice D is incorrect because selecting the antecubital fossa vein solely based on its size and accessibility may not be the most appropriate criterion; vein selection should also consider factors like vein condition and patient comfort.
5. A client with diabetes mellitus is admitted with a blood glucose level of 600 mg/dL. What is the priority nursing action for the LPN/LVN?
- A. Administer insulin as prescribed.
- B. Administer oral hypoglycemic agents.
- C. Monitor blood glucose levels frequently.
- D. Provide a high-calorie diet.
Correct answer: A
Rationale: The correct answer is to administer insulin as prescribed. When a client with diabetes mellitus presents with a critically high blood glucose level like 600 mg/dL, the priority action is to lower the blood glucose level promptly to prevent complications. Insulin is the appropriate medication to rapidly reduce high blood glucose levels. Administering oral hypoglycemic agents may not act quickly enough in this critical situation. While monitoring blood glucose levels frequently is important, immediate intervention to lower the high blood glucose level takes precedence. Providing a high-calorie diet is contraindicated in this scenario as it would further elevate the blood glucose level.
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