HESI LPN
HESI Fundamental Practice Exam
1. A client with pneumonia has a decrease in oxygen saturation from 94% to 88% while ambulating. Based on these findings, which intervention should the LPN/LVN implement first?
- A. Assist the ambulating client back to the bed.
- B. Encourage the client to ambulate to resolve pneumonia.
- C. Obtain a prescription for portable oxygen while ambulating.
- D. Move the oximetry probe from the finger to the earlobe.
Correct answer: A
Rationale: The correct intervention is to assist the client back to bed. A decrease in oxygen saturation while ambulating indicates hypoxemia, and the immediate priority is to stabilize oxygen levels. Returning the client to bed allows for rest and decreased oxygen demand, potentially preventing further desaturation. Encouraging continued ambulation (Choice B) may worsen the hypoxemia by increasing oxygen demand. Obtaining portable oxygen (Choice C) is essential but should not delay addressing the low oxygen saturation. Moving the oximetry probe (Choice D) may not address the underlying cause of decreased oxygen saturation and should not be the first intervention.
2. During an admission assessment, a healthcare professional finds a client's radial pulse rate to be 68/min and the simultaneous apical pulse to be 84/min. What is the client’s pulse deficit (per minute)?
- A. 16
- B. 12
- C. 6
- D. 14
Correct answer: A
Rationale: The pulse deficit is calculated by finding the difference between the apical and radial pulse rates. In this case, the difference is 84 - 68 = 16. This indicates that there is a pulse deficit of 16 beats per minute. Choices B, C, and D are incorrect as they do not accurately reflect the difference between the two pulse rates.
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. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
5. When planning interventions for a group of clients who are obese, what can the nurse do to improve their commitment to a long-term goal of weight loss?
- A. Developing a strict diet plan
- B. Attempting to develop the clients’ self-motivation
- C. Providing frequent rewards
- D. Encouraging group exercise
Correct answer: B
Rationale: To improve clients' commitment to a long-term goal of weight loss, attempting to develop their self-motivation is crucial. Self-motivation is essential for sustaining behavior changes over time. Providing a strict diet plan (choice A) may not address the root motivation needed for long-term success. While rewards (choice C) can be motivating, relying solely on external rewards may not foster the intrinsic motivation required for sustained weight loss. Encouraging group exercise (choice D) is beneficial, but without addressing individual motivation, it may not lead to long-term commitment to weight loss goals.
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