HESI LPN
Adult Health Exam 1
1. The healthcare provider prescribes erythromycin (Ilosone) 300 mg PO QID. The medication label reads, 'Ilosone 100mg/5mL.' How many mL should the nurse administer at each dose?
- A. 15 mL
- B. 10 mL
- C. 20 mL
- D. 5 mL
Correct answer: A
Rationale: To determine the volume of medication needed for a 300 mg dose of Ilosone (100mg/5mL), we set up a proportion: 100 mg is to 5 mL as 300 mg is to x mL. Cross-multiplying, we get x = (300*5)/100 = 15 mL. Therefore, the nurse should administer 15 mL at each dose. Choice B (10 mL) is incorrect as it does not reflect the correct calculation based on the medication concentration. Choices C (20 mL) and D (5 mL) are also incorrect as they do not accurately calculate the volume required for the prescribed dose.
2. A client with a diagnosis of hypertension is prescribed a thiazide diuretic. Which potential side effect should the nurse monitor for?
- A. Hyperkalemia
- B. Hypernatremia
- C. Hypokalemia
- D. Hypoglycemia
Correct answer: C
Rationale: The correct answer is C: 'Hypokalemia.' Thiazide diuretics commonly cause potassium loss, which can lead to hypokalemia. Monitoring potassium levels is essential when a client is taking thiazide diuretics to prevent complications such as cardiac dysrhythmias. Choices A, B, and D are incorrect. Hyperkalemia (choice A) is an elevated level of potassium, which is not typically associated with thiazide diuretics. Hypernatremia (choice B) is an elevated level of sodium, and hypoglycemia (choice D) is low blood sugar, neither of which are directly linked to thiazide diuretic use.
3. A client reports feeling dizzy and light-headed when standing up. What is the nurse's best initial action?
- A. Instruct the client to sit or lie down
- B. Monitor blood pressure and pulse
- C. Administer an anti-dizziness medication
- D. Increase fluid intake
Correct answer: B
Rationale: The correct answer is B: Monitor blood pressure and pulse. When a client reports feeling dizzy and light-headed when standing up, the nurse's best initial action should be to monitor the client's blood pressure and pulse. These symptoms are indicative of orthostatic hypotension, which can be confirmed by changes in blood pressure and pulse when moving from lying to standing positions. Instructing the client to sit or lie down may provide temporary relief but does not address the underlying cause. Administering an anti-dizziness medication should not be the initial action without assessing vital signs first. Increasing fluid intake is important for overall health but is not the priority in this situation where vital sign monitoring is needed to assess for orthostatic hypotension.
4. When using a metered-dose inhaler (MDI), which step is most important for ensuring effective medication delivery?
- A. Exhale completely before using the inhaler
- B. Inhale quickly while pressing down on the inhaler
- C. Shake the inhaler for 10 seconds before use
- D. Hold breath for 5 seconds after inhaling
Correct answer: A
Rationale: The correct step to ensure effective medication delivery when using a metered-dose inhaler (MDI) is to exhale completely before using the inhaler. This action helps create more space in the lungs for the medication to reach deeply into the airways. Inhaling quickly while pressing down on the inhaler (Choice B) may cause the medication to impact the throat rather than reaching the lungs. Shaking the inhaler for 10 seconds before use (Choice C) is important to mix the medication but not the most crucial step for effective delivery. While holding the breath for 5 seconds after inhaling (Choice D) can help the medication stay in the lungs momentarily, exhaling completely before inhalation is more critical for optimal drug deposition.
5. The nurse is caring for a client with acute pancreatitis. Which intervention should be included in the plan of care?
- A. Provide a high-protein diet
- B. Encourage oral fluids
- C. Administer intravenous fluids as prescribed
- D. Monitor for signs of hyperglycemia
Correct answer: C
Rationale: The correct intervention to include in the plan of care for a client with acute pancreatitis is to administer intravenous fluids as prescribed. Intravenous fluids are crucial to maintain hydration and electrolyte balance in clients with acute pancreatitis. Providing a high-protein diet (Choice A) is not recommended initially for clients with acute pancreatitis, as they may need to be kept NPO (nothing by mouth) to rest the pancreas. Encouraging oral fluids (Choice B) may not be appropriate if the client is experiencing severe symptoms and requires intravenous fluids. Monitoring for signs of hyperglycemia (Choice D) is important but not the immediate intervention needed to address the fluid and electrolyte imbalances associated with acute pancreatitis.
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