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. The nurse is caring for a client with increased intracranial pressure (ICP). Which position should the nurse avoid?
- A. Keeping the head of the bed elevated at 30 degrees
- B. Positioning the client in the prone position
- C. Placing the client in a lateral recumbent position
- D. Elevating the client's legs
Correct answer: B
Rationale: The correct answer is B: Positioning the client in the prone position. Placing the client in the prone position should be avoided in a client with increased intracranial pressure (ICP) as it can further raise ICP. The prone position can hinder venous return and increase pressure within the cranial vault, potentially worsening the client's condition. Keeping the head of the bed elevated at 30 degrees helps promote venous drainage and reduce ICP. Placing the client in a lateral recumbent position can also assist in reducing ICP by optimizing cerebral perfusion. Elevating the client's legs can help improve venous return and maintain adequate cerebral blood flow, making it a suitable positioning intervention for managing increased ICP.
3. During a severe asthma exacerbation in a client, what is the nurse's priority?
- A. Administer a rescue inhaler immediately
- B. Prepare for intubation
- C. Encourage deep breathing exercises
- D. Monitor oxygen saturation levels
Correct answer: A
Rationale: During a severe asthma exacerbation, the nurse's priority is to administer a rescue inhaler immediately. This action helps open the airways and improve breathing, which is crucial in managing the exacerbation. Choice B, preparing for intubation, would be considered if the client's condition deteriorates and they are unable to maintain adequate oxygenation even after using the rescue inhaler. Encouraging deep breathing exercises (Choice C) may not be appropriate during a severe exacerbation as the client may struggle to breathe. While monitoring oxygen saturation levels (Choice D) is important, the immediate administration of a rescue inhaler takes precedence to address the acute breathing difficulty.
4. A client is prescribed metformin for the management of type 2 diabetes. What is the primary action of this medication?
- A. Stimulates insulin secretion from the pancreas.
- B. Increases insulin sensitivity in various tissues.
- C. Decreases hepatic glucose production.
- D. Delays absorption of glucose from the intestines.
Correct answer: C
Rationale: The correct answer is C: Decreases hepatic glucose production. Metformin primarily works by reducing the production of glucose in the liver (hepatic glucose production) and by improving insulin sensitivity in various tissues. Choice A is incorrect as metformin does not stimulate insulin secretion from the pancreas. Choice B is incorrect as metformin increases insulin sensitivity in various tissues, not just muscle cells. Choice D is incorrect as metformin does not delay glucose absorption from the intestines.
5. A client with a diagnosis of chronic heart failure is receiving digoxin. What is the most important assessment before administering this medication?
- A. Check blood pressure.
- B. Assess heart rate.
- C. Monitor respiratory rate.
- D. Measure oxygen saturation.
Correct answer: B
Rationale: The correct answer is to assess the heart rate. Before administering digoxin, it is essential to evaluate the heart rate as digoxin can cause bradycardia. While checking blood pressure, monitoring respiratory rate, and measuring oxygen saturation are important assessments in the care of a client with chronic heart failure, assessing the heart rate is particularly critical due to the medication's potential impact on heart rhythm.
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