HESI LPN
HESI Fundamentals Exam
1. A client with a new diagnosis of diabetes mellitus is being taught how to administer insulin. Which of the following instructions should the nurse include?
- A. Administer the insulin in the same body area each time.
- B. Store the insulin according to the manufacturer's instructions.
- C. Rotate injection sites within the same body area.
- D. Inject the insulin at a 45-degree angle.
Correct answer: C
Rationale: The correct instruction the nurse should include is to rotate injection sites within the same body area. This practice helps prevent lipodystrophy, a condition characterized by the thickening or thinning of subcutaneous fat at the injection sites, which can affect insulin absorption. Choice A is incorrect because administering insulin in the same area each time can lead to lipodystrophy. Choice B is incorrect as insulin should be stored according to the manufacturer's instructions, which may include refrigeration. Choice D is incorrect because the angle of insulin injection (usually 90 degrees) is determined by the length of the needle and the amount of subcutaneous fat, not a fixed 45-degree angle.
2. A provider prescribes cold application for a client who reports ankle joint stiffness. Which of the following assessment findings should the nurse identify as a contraindication to the application of cold?
- A. Capillary refill of 4 seconds
- B. 7.5 cm (3 in) diameter bruise on the ankle
- C. Warts on the affected ankle
- D. 2+ pitting edema
Correct answer: A
Rationale: The correct answer is A. Capillary refill of 4 seconds indicates poor circulation, which is a contraindication to cold application as it could worsen the condition by further reducing blood flow. Choice B, a 7.5 cm (3 in) diameter bruise on the ankle, does not directly contraindicate cold application but may need evaluation for possible underlying injuries. Choice C, warts on the affected ankle, do not necessarily contraindicate cold application. Choice D, 2+ pitting edema, is not a direct contraindication to cold application but may need to be addressed separately.
3. When performing nasotracheal suctioning for a client with a respiratory infection, what technique should the nurse use?
- A. Apply intermittent suction when withdrawing the catheter
- B. Suction continuously while inserting the catheter
- C. Suction intermittently while inserting the catheter
- D. Use a Yankauer suction device
Correct answer: A
Rationale: When performing nasotracheal suctioning for a client with a respiratory infection, the nurse should apply intermittent suction when withdrawing the catheter. This technique helps minimize mucosal damage and is considered best practice. Choice B, suctioning continuously while inserting the catheter, is incorrect as continuous suctioning can cause trauma to the airway. Choice C, suctioning intermittently while inserting the catheter, is also incorrect as it can increase the risk of hypoxia and mucosal damage. Choice D, using a Yankauer suction device, is not appropriate for nasotracheal suctioning as it is typically used for oral suctioning. Therefore, the correct technique is to apply intermittent suction when withdrawing the catheter to ensure effective and safe suctioning.
4. 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.
5. The nurse is assessing a client who has just been admitted with a diagnosis of acute pancreatitis. Which finding is most important for the LPN/LVN to report to the healthcare provider immediately?
- A. Elevated serum lipase level
- B. Severe abdominal pain
- C. Nausea and vomiting
- D. Hypotension
Correct answer: D
Rationale: Hypotension is a critical finding that should be reported immediately in a client with acute pancreatitis as it may indicate severe complications such as hemorrhage or shock. While elevated serum lipase level, severe abdominal pain, and nausea/vomiting are common manifestations of acute pancreatitis, hypotension is a more urgent sign requiring immediate attention to prevent further deterioration. Hypotension can be a sign of significant fluid loss, hemorrhage, or sepsis, which are potentially life-threatening conditions that need prompt intervention. Elevated serum lipase levels, severe abdominal pain, and nausea/vomiting are important in the assessment of pancreatitis but do not indicate the same level of immediate danger as hypotension does.
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