ATI LPN
LPN Pharmacology Practice Test
1. A healthcare professional is reviewing laboratory results for a client with rheumatoid arthritis prescribed methotrexate. Which of the following laboratory results should the healthcare professional report to the provider?
- A. WBC count 1,200/mm³
- B. Hemoglobin 14 g/dL
- C. Platelets 150,000/mm³
- D. Blood glucose 110 mg/dL
Correct answer: A
Rationale: A WBC count of 1,200/mm³ indicates leukopenia, a serious side effect of methotrexate that can lead to increased risk of infections. It is crucial to report this finding promptly to the provider for further evaluation and possible adjustments in the treatment plan. Choices B, C, and D are within normal ranges and do not represent significant concerns related to methotrexate therapy in this context.
2. What are the risk factors for developing pneumonia in older adults?
- A. Immobility and decreased lung function
- B. Poor hygiene and aspiration
- C. Use of respiratory equipment and medications
- D. Poor nutritional status and compromised immune system
Correct answer: A
Rationale: The correct answer is A: Immobility and decreased lung function. Older adults with immobility and decreased lung function are at a higher risk of developing pneumonia. Immobility can lead to decreased lung expansion and impaired clearance of secretions, predisposing to pneumonia. While poor hygiene, aspiration, use of respiratory equipment, medications, poor nutritional status, and compromised immune system can also contribute to pneumonia risk, they are not as directly associated with pneumonia in older adults as immobility and decreased lung function.
3. A nurse is caring for a client who has severe preeclampsia and is receiving magnesium sulfate intravenously. The nurse discontinues the magnesium sulfate after the client displays toxicity. Which of the following actions should the nurse take?
- A. Position the client supine.
- B. Prepare an IV bolus of dextrose 5% in water.
- C. Administer methylergonovine IM.
- D. Administer calcium gluconate IV.
Correct answer: D
Rationale: In cases of magnesium sulfate toxicity, calcium gluconate is the antidote that should be administered promptly. Positioning the client supine (Choice A) is not the priority in this scenario. Administering dextrose 5% in water (Choice B) is not indicated for magnesium sulfate toxicity. Methylergonovine IM (Choice C) is used for postpartum hemorrhage, not for magnesium sulfate toxicity.
4. A patient with obsessive-compulsive disorder (OCD) spends hours washing their hands. Which nursing intervention is most appropriate?
- A. Encouraging the patient to stop washing their hands
- B. Allowing the patient to wash hands at specified times
- C. Ignoring the patient's behavior
- D. Setting strict limits on the time allowed for hand washing
Correct answer: B
Rationale: In managing a patient with OCD who spends excessive time washing hands, allowing the patient to wash hands at specified times is the most appropriate nursing intervention. This approach helps establish a structured routine for hand washing, which can assist in managing OCD symptoms without reinforcing the behavior. Encouraging the patient to stop washing hands may lead to increased anxiety and resistance. Ignoring the behavior can perpetuate the cycle of OCD, and setting strict limits on hand washing time may cause distress and may not effectively address the underlying issues associated with OCD.
5. A nurse is reviewing a prescription for doxazosin with a client. Which instruction should the nurse include?
- A. Decrease caloric intake to reduce weight gain
- B. Increase dietary fiber to prevent constipation
- C. Rise slowly when sitting up
- D. Take this medication each morning
Correct answer: C
Rationale: The correct answer is C: 'Rise slowly when sitting up.' Doxazosin can cause orthostatic hypotension, a sudden drop in blood pressure when standing up, leading to dizziness or fainting. Instructing the client to rise slowly helps prevent this adverse effect. Choices A, B, and D are incorrect. A decrease in caloric intake to reduce weight gain, an increase in dietary fiber to prevent constipation, and taking the medication each morning are not specific instructions related to managing the side effects of doxazosin.
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