HESI LPN
Adult Health Exam 1
1. A client with a history of atrial fibrillation is prescribed warfarin. Which lab value should the nurse monitor to assess the effectiveness of this medication?
- A. Hemoglobin
- B. White blood cell count
- C. Platelet count
- D. INR
Correct answer: D
Rationale: The correct answer is D, INR (International Normalized Ratio). The INR is used to monitor the effectiveness of warfarin therapy. Warfarin is an anticoagulant medication commonly prescribed for conditions like atrial fibrillation. Monitoring the INR helps healthcare providers ensure that the blood is clotting within a therapeutic range. Hemoglobin (Choice A), white blood cell count (Choice B), and platelet count (Choice C) are not directly related to monitoring the effectiveness of warfarin therapy in this context.
2. The nurse is caring for a client with a diagnosis of major depressive disorder who has been prescribed a selective serotonin reuptake inhibitor (SSRI). What is the most important teaching point?
- A. Take the medication with food.
- B. Expect to see improvement within 24 hours.
- C. Avoid drinking grapefruit juice.
- D. Report any thoughts of self-harm immediately.
Correct answer: D
Rationale: The correct answer is D: 'Report any thoughts of self-harm immediately.' Clients prescribed SSRIs should be educated to report any thoughts of self-harm promptly, as these medications can initially increase suicidal ideation. Choice A is incorrect because SSRIs are usually taken on an empty stomach. Choice B is incorrect as it takes several weeks for SSRIs to reach their full effectiveness. Choice C is irrelevant to SSRI therapy.
3. 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.
4. A client with chronic obstructive pulmonary disease (COPD) is using a metered-dose inhaler (MDI). What technique should the nurse emphasize?
- A. The importance of using a spacer
- B. How to synchronize breaths with inhaler activation
- C. Regular cleaning of the inhaler
- D. All of the above
Correct answer: D
Rationale: In managing COPD with a metered-dose inhaler (MDI), the nurse should emphasize all of the techniques mentioned. Using a spacer can help improve drug delivery and reduce the risk of oral thrush. Synchronizing breaths with inhaler activation ensures proper medication delivery to the lungs. Regular cleaning of the inhaler prevents blockages and ensures optimal functioning. Therefore, all these techniques are important for effective COPD management, making 'All of the above' the correct answer. Choices A, B, and C are all crucial components of proper MDI technique in COPD, so they are not individually sufficient without the others.
5. A client with a diagnosis of rheumatoid arthritis is prescribed methotrexate. What is the primary action of this medication?
- A. Increases joint lubrication
- B. Reduces inflammation by suppressing the immune system
- C. Enhances bone density
- D. Stimulates cartilage regeneration
Correct answer: B
Rationale: The correct answer is B: Methotrexate is an immunosuppressant that works by suppressing the immune system, thereby reducing inflammation in rheumatoid arthritis. Methotrexate does not directly increase joint lubrication (Choice A) as its primary action is on the immune system. Choices C and D are incorrect since methotrexate does not enhance bone density or stimulate cartilage regeneration. It is crucial for healthcare providers to understand the mechanism of action of medications to provide safe and effective care to patients.
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