ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for allopurinol. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Increase your fluid intake.
- C. Avoid consuming dairy products.
- D. Take the medication in the morning.
Correct answer: B
Rationale: Increasing fluid intake is essential when taking allopurinol to prevent the formation of kidney stones. Allopurinol can increase the levels of uric acid in the body, which can lead to kidney stone formation. By increasing fluid intake, the client can help flush out excess uric acid and prevent the development of kidney stones. It is important to drink plenty of water throughout the day to maintain adequate hydration and reduce the risk of kidney stone formation. Choices A, C, and D are incorrect. Taking allopurinol with food or in the morning does not specifically relate to preventing kidney stone formation. Avoiding dairy products is not a standard recommendation when taking allopurinol.
2. A client is admitted to the emergency department with a suspected myocardial infarction (MI). The nurse should prepare the client for which immediate diagnostic test?
- A. Chest x-ray
- B. Electrocardiogram (ECG)
- C. Echocardiogram
- D. Coronary angiography
Correct answer: B
Rationale: An Electrocardiogram (ECG) is the most immediate and essential test to diagnose a myocardial infarction (MI) and assess the extent of heart damage. An ECG can quickly identify changes in the heart's electrical activity, allowing prompt initiation of appropriate interventions. A chest x-ray (Choice A) may show other conditions affecting the heart, but it is not the immediate test of choice for diagnosing an MI. An echocardiogram (Choice C) and coronary angiography (Choice D) are valuable in further assessing cardiac function and anatomy post-MI but are not the first-line diagnostic tests due to their time-consuming nature compared to an ECG.
3. A client with a diagnosis of angina pectoris is prescribed nitroglycerin tablets. How should the nurse instruct the client to take the medication?
- A. Swallow the tablet whole with water
- B. Place the tablet under the tongue and let it dissolve
- C. Chew the tablet and then swallow
- D. Place the tablet between the cheek and gum
Correct answer: B
Rationale: Nitroglycerin is most effective when administered sublingually (under the tongue) as it is rapidly absorbed into the bloodstream. Placing the tablet under the tongue allows for quick absorption and faster relief of angina symptoms. Chewing the tablet, swallowing it, or placing it between the cheek and gum would not provide the same rapid onset of action needed during an angina episode. Therefore, the correct instruction for the client is to place the nitroglycerin tablet under the tongue and let it dissolve for optimal effectiveness.
4. A client has a new prescription for phenytoin. Which of the following instructions should the nurse include?
- A. Take the medication with a full glass of water.
- B. Avoid consuming dairy products.
- C. Take the medication on an empty stomach.
- D. Expect a metallic taste in your mouth.
Correct answer: B
Rationale: The correct instruction for a client prescribed phenytoin is to avoid consuming dairy products. Dairy products can reduce the absorption of phenytoin. Taking the medication with a full glass of water (Choice A) is generally a good practice for oral medications but is not specifically required for phenytoin. Taking the medication on an empty stomach (Choice C) can lead to gastrointestinal upset, so it is not recommended for phenytoin. Expecting a metallic taste in the mouth (Choice D) is a possible side effect of phenytoin but is not a crucial instruction for the client to follow.
5. A healthcare professional is assessing a client who has been taking isoniazid to treat tuberculosis. The healthcare professional should monitor the client for which of the following findings as an adverse effect of the medication?
- A. Diarrhea
- B. Blurred vision
- C. Hearing loss
- D. Jaundice
Correct answer: D
Rationale: Correct. Jaundice is a serious adverse effect of isoniazid due to liver damage. It is essential to monitor for signs of liver toxicity, such as jaundice, while the client is on this medication. Diarrhea is a common side effect of isoniazid, but it is not as serious as liver damage. Blurred vision and hearing loss are not typically associated with isoniazid use.
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