HESI LPN
Practice HESI Fundamentals Exam
1. A client with diabetes mellitus is being taught by a nurse about mixing regular and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should roll the NPH vial between my hands before drawing it up.
- B. I should draw up the NPH insulin before the regular insulin.
- C. I should inject air into the vial of regular insulin first.
- D. I should wait 10 minutes after mixing the insulin to inject it.
Correct answer: A
Rationale: The correct answer is A. Rolling the NPH vial between the hands before drawing it up ensures proper mixing of the insulin. Choice B is incorrect because regular insulin should be drawn up first to avoid contamination. Choice C is incorrect as injecting air into the vial of regular insulin is not necessary. Choice D is incorrect as there is no need to wait 10 minutes after mixing the insulin before injecting it.
2. The client with congestive heart failure (CHF) is receiving furosemide (Lasix). Which laboratory value should the healthcare provider monitor closely?
- A. Potassium
- B. Sodium
- C. Calcium
- D. Magnesium
Correct answer: A
Rationale: Correct! When a client is taking furosemide (Lasix), monitoring potassium levels is crucial due to the potential for hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through increased urine output. Low potassium levels can predispose the client to cardiac dysrhythmias. Sodium, calcium, and magnesium levels are not typically affected by furosemide to the same extent as potassium, making them less critical to monitor in this scenario.
3. A healthcare professional is preparing to administer medications to a client. Which of the following client identifiers should the healthcare professional use to ensure medication safety?
- A. Ask the client to state their full name.
- B. Ask the client for their date of birth.
- C. Compare the client's wristband with the medication administration record.
- D. Ask the client for their room number.
Correct answer: C
Rationale: Comparing the client's wristband with the medication administration record is a crucial step in ensuring medication safety. The wristband typically contains unique identifiers such as the client's name, date of birth, and medical record number, which should be cross-checked with the medication administration record to confirm the correct patient. Asking the client to state their name (Choice A) or date of birth (Choice B) may not be as reliable as the information can be misunderstood or miscommunicated. Asking for the room number (Choice D) is not a reliable client identifier for medication administration and does not confirm the patient's identity accurately.
4. A client is being taught about the use of an incentive spirometer. Which statement by the client indicates effective teaching?
- A. I will use the spirometer every hour while awake.
- B. I will blow into the spirometer as hard as I can.
- C. I should feel dizzy when using the spirometer.
- D. I will only use the spirometer if I feel short of breath.
Correct answer: A
Rationale: The correct answer is A because using the spirometer every hour while awake is an effective way to prevent respiratory complications. This frequency helps in maintaining lung function and preventing atelectasis. Choice B is incorrect because blowing too hard into the spirometer can lead to hyperventilation and dizziness, making choice C also incorrect. Choice D is wrong as waiting to use the spirometer only when feeling short of breath may not provide optimal lung expansion and can lead to respiratory issues.
5. A healthcare provider is planning to initiate IV therapy for an older adult client who requires IV fluids. Which of the following actions should the healthcare provider take?
- A. Insert the IV catheter without using a tourniquet.
- B. Use the tourniquet minimally or not at all to avoid injury to fragile skin or veins.
- C. Insert the IV catheter at a 45-degree angle.
- D. Use a smaller gauge catheter to reduce vein trauma.
Correct answer: B
Rationale: When initiating IV therapy in older adults, it is essential to use the tourniquet minimally or not at all to prevent potential injury to fragile skin or veins. The use of a tourniquet can lead to increased venous pressure and potentially cause vein damage in older adult clients. Choice A is incorrect because inserting the IV catheter without a tourniquet can make locating veins more challenging. Choice C is incorrect as inserting the IV catheter at a 45-degree angle is not a recommended practice and can increase the risk of complications. Choice D is incorrect because using a smaller gauge catheter may not be appropriate for older adults who may require a larger gauge catheter for adequate fluid administration.
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