HESI LPN
HESI Fundamentals Exam Test Bank
1. A nurse is preparing an infusion for a client who was hospitalized with deep-vein thrombosis. The orders read: 25,000 units of heparin in 250 mL of 0.9% sodium chloride to infuse at 800 units/hr. At what rate should the nurse set the infusion pump?
- A. 8 mL/hr
- B. 10 mL/hr
- C. 12 mL/hr
- D. 15 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, use the formula: (Desired units/hr / Total units) × Volume. In this case, it would be (800 units/hr / 25,000 units) × 250 mL = 8 mL/hr. Therefore, the nurse should set the infusion pump at 8 mL/hr. Choice B, 10 mL/hr, is incorrect because it does not match the calculated rate. Choices C and D, 12 mL/hr and 15 mL/hr respectively, are also incorrect as they do not align with the correct calculation based on the provided data.
2. A healthcare provider is preparing to perform mouth care for an unresponsive client. Which of the following actions should the healthcare provider plan to take?
- A. Raise the level of the bed
- B. Administer mouth care with the client in a supine position
- C. Use a tongue depressor to open the mouth
- D. Place the client in a prone position
Correct answer: A
Rationale: Raising the bed level is the correct action to facilitate easier access for mouth care in an unresponsive client. This position enhances the safety and comfort of both the client and the healthcare provider. Administering mouth care with the client in a supine position (lying flat on their back) can increase the risk of aspiration. Using a tongue depressor to open the mouth is not recommended as it can cause discomfort and potential injury. Placing the client in a prone position (lying face down) is contraindicated for mouth care and can compromise the client's airway.
3. What finding signifies that children have attained the stage of concrete operations according to Piaget?
- A. Demonstrates exploration of the environment through sight and movement
- B. Thinks in mental images or word pictures
- C. Makes the moral judgment that 'stealing is wrong'
- D. Reasons that homework is time-consuming yet necessary
Correct answer: C
Rationale: The correct answer is C, 'Makes the moral judgment that 'stealing is wrong''. This finding signifies the attainment of the concrete operational stage according to Piaget. At this stage, children begin to understand rules and logic, including moral judgments. Choice A is incorrect because it does not specifically relate to concrete operational thinking. Choice B is incorrect as it refers more to the preoperational stage where children engage in symbolic thought. Choice D is also incorrect as it involves practical reasoning, which is not directly related to the concrete operational stage according to Piaget.
4. The pediatric clinic nurse examines a toddler with a tentative diagnosis of neuroblastoma. Findings observed by the nurse that are associated with this problem include which of these?
- A. Lymphedema and nerve palsy
- B. Hearing loss and ataxia
- C. Headaches and vomiting
- D. Abdominal mass and weakness
Correct answer: D
Rationale: The correct answer is D: Abdominal mass and weakness. In neuroblastoma, the most common presenting signs are related to the mass effect of the tumor, leading to an abdominal mass and symptoms of weakness. Lymphedema and nerve palsy (Choice A) are not typically associated with neuroblastoma. Hearing loss and ataxia (Choice B) are more indicative of other conditions like neurofibromatosis or brain tumors. Headaches and vomiting (Choice C) are more commonly seen in conditions such as brain tumors or increased intracranial pressure, but they are not specific to neuroblastoma.
5. The healthcare provider is assessing a client with a history of congestive heart failure. Which assessment finding would be most concerning?
- A. Shortness of breath on exertion
- B. Weight gain of 2 pounds in a week
- C. Orthopnea
- D. Crackles in the lungs
Correct answer: D
Rationale: Crackles in the lungs are concerning because they indicate pulmonary congestion, a serious complication of congestive heart failure. The presence of crackles suggests fluid accumulation in the lungs, requiring immediate attention to prevent respiratory distress and worsening heart failure. While shortness of breath on exertion, weight gain, and orthopnea are common signs and symptoms of heart failure, crackles specifically point to acute pulmonary edema or worsening congestion, making them the most concerning finding in this scenario.
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