HESI LPN
Practice HESI Fundamentals Exam
1. A nurse is preparing to administer ketorolac 0.5 mg/kg IV bolus every 6 hr to a school-age child who weighs 66 lb. The available ketorolac injection is 30 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Correct answer: A
Rationale: To calculate the dose, first convert the weight from pounds to kilograms. The child weighs 66 lb, which is approximately 30 kg. The prescribed dose is 0.5 mg/kg, so for a 30 kg child, the dose would be 0.5 mg/kg x 30 kg = 15 mg. Since the available ketorolac injection is 30 mg/mL, the nurse should administer 15 mg ÷ 30 mg/mL = 0.5 mL per dose. Therefore, choice A (0.5 mL) is the correct answer. Choices B, C, and D are incorrect as they do not accurately calculate the correct dose based on the child's weight and the concentration of the ketorolac injection.
2. A client with heart failure is being taught by a nurse on reducing daily sodium intake. Which factor is most crucial in determining the client’s ability to learn new dietary habits?
- A. The client's involvement in planning the change
- B. The cost of the dietary changes
- C. The availability of low-sodium foods
- D. The client’s previous dietary knowledge
Correct answer: D
Rationale: The client’s previous dietary knowledge is the most critical factor in determining the ability to learn new dietary habits. Understanding the client's existing dietary knowledge helps tailor the teaching to build upon what they already know. While client involvement in planning changes can increase adherence and motivation, the foundational knowledge is essential for effective learning. The cost of dietary changes and the availability of low-sodium foods are important considerations but not as crucial as the client's existing knowledge.
3. When explaining the fecal occult blood testing procedure to a client, which of the following information should be included?
- A. Eating more protein is not necessary before testing.
- B. Multiple stool specimens may be required for testing.
- C. A red color change indicates a positive test.
- D. The specimen must not be contaminated with urine.
Correct answer: D
Rationale: The correct answer is D. When performing fecal occult blood testing, it is crucial to inform the client that the specimen must not be contaminated with urine to prevent false results. Choices A and B are incorrect because eating more protein is not required before testing, and multiple stool specimens may be necessary for accurate results, respectively. Additionally, regarding choice C, a red color change, not blue, indicates a positive test result, making it an incorrect option.
4. The healthcare provider is caring for a client with a wound infection. Which type of dressing is most appropriate to use to promote healing by secondary intention?
- A. Dry gauze dressing
- B. Wet-to-dry dressing
- C. Transparent film dressing
- D. Hydrocolloid dressing
Correct answer: D
Rationale: Hydrocolloid dressings are ideal for promoting healing by secondary intention in wound infections. These dressings create a moist environment that supports autolytic debridement and facilitates the healing process. Dry gauze dressings (Option A) may lead to adherence, causing trauma upon removal and disrupting the wound bed. Wet-to-dry dressings (Option B) are primarily used for mechanical debridement and can be painful during dressing changes. Transparent film dressings (Option C) are more suitable for superficial wounds with minimal exudate and are not typically used for wound infections requiring healing by secondary intention.
5. The healthcare provider prescribes furosemide (Lasix) 15 mg IV stat. On hand is Lasix 20 mg/2 ml. How many milliliters should the LPN/LVN administer?
- A. 1 ml.
- B. 1.5 ml.
- C. 1.75 ml.
- D. 2 ml.
Correct answer: B
Rationale: To calculate the correct dose of 15 mg, the LPN/LVN should administer 1.5 ml of Lasix (20 mg/2 ml). This calculation ensures precise dosing. Choice A (1 ml) is too low and would provide only 10 mg, while choice C (1.75 ml) and choice D (2 ml) would exceed the prescribed dose, resulting in potential adverse effects. It is important for the LPN/LVN to administer the exact prescribed dose to ensure therapeutic efficacy and avoid unnecessary complications.
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