HESI LPN
HESI Fundamentals Study Guide
1. When reviewing a client’s fluid and electrolyte status, what should the nurse report to the provider?
- A. Potassium 5.4
- B. Sodium 140
- C. Calcium 8.6
- D. Magnesium 2.0
Correct answer: A
Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.
2. A client is having difficulty breathing while laying in bed with a nasal cannula delivering oxygen. Which of the following interventions should the nurse take first?
- A. Suction the client's airway
- B. Administer a bronchodilator
- C. Increase the humidity in the client's room
- D. Assist the client to an upright position
Correct answer: D
Rationale: The correct answer is to assist the client to an upright position. When a client is having difficulty breathing, promoting optimal oxygenation is essential. Elevating the head of the bed improves ventilation and lung expansion by reducing pressure on the diaphragm. This position allows the lungs to expand fully, enhancing oxygen exchange. Suctioning the airway may be necessary if there are secretions causing obstruction, but it is not the first intervention in this scenario. Administering a bronchodilator is appropriate for bronchoconstriction but does not address the immediate need for better ventilation. Increasing humidity can be beneficial in certain respiratory conditions, but it is not the initial priority when a client is struggling to breathe.
3. During assessment, what is a nurse monitoring when assessing body alignment?
- A. The relationship of one body part to another in different positions
- B. The coordination between musculoskeletal and nervous systems
- C. The force opposing movement direction
- D. The ability to move freely
Correct answer: A
Rationale: When a nurse assesses body alignment, they are observing the relationship of one body part to another in various positions. This involves evaluating the positioning of joints, tendons, ligaments, and muscles while a person is standing, sitting, or lying down. Choice B is incorrect because it refers more to the coordination between the musculoskeletal and nervous systems, which is not specifically related to body alignment assessment. Choice C is incorrect as it describes the force opposing movement rather than body alignment. Choice D is incorrect as it defines the ability to move freely, which is not directly related to monitoring body alignment.
4. A client is recovering from gallbladder surgery performed under general anesthesia. How many times per hour should the nurse encourage the client to use the incentive spirometer?
- A. 4-5 times per hour
- B. 2-3 times per hour
- C. 6-7 times per hour
- D. 8-10 times per hour
Correct answer: A
Rationale: Encouraging the client to use the incentive spirometer 4-5 times per hour is the correct approach post-gallbladder surgery under general anesthesia. This frequency helps prevent respiratory complications, such as atelectasis, by promoting lung expansion. Choices B, C, and D suggest either too few or too many sessions per hour, which may not be optimal for the client's respiratory recovery needs. It is important to strike a balance between ensuring adequate lung expansion and not overexerting the client, which is why 4-5 times per hour is the recommended frequency.
5. The nurse is caring for a client who is receiving 24-hour total parenteral nutrition (TPN) via a central line at 54 ml/hr. When initially assessing the client, the nurse notes that the TPN solution has run out and the next TPN solution is not available. What immediate action should the nurse take?
- A. Infuse normal saline at a keep-vein-open rate.
- B. Discontinue the IV and flush the port with heparin.
- C. Infuse 10% dextrose and water at 54 ml/hr.
- D. Obtain a stat blood glucose level and notify the healthcare provider.
Correct answer: C
Rationale: Infusing 10% dextrose and water at 54 ml/hr is the correct action to prevent hypoglycemia until the next TPN solution becomes available. This solution will help maintain the client's glucose levels. Infusing normal saline at a keep-vein-open rate (Choice A) is not appropriate for maintaining glucose levels and would not address the nutritional needs provided by TPN. Discontinuing the IV and flushing the port with heparin (Choice B) is unnecessary and not indicated in this situation as the client still needs fluid and nutrition. Obtaining a stat blood glucose level and notifying the healthcare provider (Choice D) can be done later but is not the immediate action required when the TPN solution has run out.
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