ATI RN
ATI Pharmacology Proctored Exam
1. When providing teaching to a client with a prescription for Phenytoin, which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Increase your intake of calcium-rich foods.
- C. Brush and floss your teeth regularly.
- D. Avoid eating foods high in potassium.
Correct answer: C
Rationale: The correct answer is C: 'Brush and floss your teeth regularly.' Phenytoin can cause gingival hyperplasia, a side effect that affects the gums. It is crucial for the client to maintain good oral hygiene to prevent oral health complications. Choices A, B, and D are incorrect. While the timing of medication administration and dietary considerations are important, they are not directly related to preventing the specific side effect of gingival hyperplasia caused by Phenytoin.
2. A client has a prescription for a Nicotine transdermal patch. Which of the following instructions should the nurse include?
- A. Apply the patch at the same time each day.
- B. Remove the patch at bedtime.
- C. Apply the patch to the same location daily.
- D. Place the patch over an area of the body with hair.
Correct answer: A
Rationale: The correct instruction for a client using a Nicotine transdermal patch is to apply the patch at the same time each day. This helps maintain consistent blood levels of nicotine throughout the treatment period, which can aid in reducing cravings for smoking. Consistency in the application time is essential for the effectiveness of the patch. Choices B, C, and D are incorrect. Removing the patch at bedtime may disrupt the continuous delivery of nicotine, applying the patch to the same location daily can cause skin irritation, and placing the patch over an area with hair may affect its adhesion and absorption.
3. A client has a new prescription for Loperamide. Which of the following instructions should the nurse include?
- A. Take the medication with a full glass of water.
- B. Avoid activities that require alertness.
- C. Increase your intake of high-fiber foods.
- D. Expect your stools to be black and tarry.
Correct answer: B
Rationale: The correct answer is B. Loperamide can cause drowsiness and dizziness, so clients should avoid activities that require alertness until they know how the medication affects them. Taking the medication with a full glass of water can help with absorption. Increasing intake of high-fiber foods is not directly related to Loperamide. Black, tarry stools are not expected side effects of this medication, so informing the client to expect this is incorrect.
4. A healthcare professional in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?
- A. Isosorbide
- B. Phenytoin
- C. Metronidazole
- D. Prednisone
Correct answer: A
Rationale: Sildenafil is contraindicated with nitrates like isosorbide due to the risk of severe hypotension. Isosorbide is a nitrate that can potentiate the hypotensive effects of sildenafil, leading to a dangerous drop in blood pressure. Therefore, it is essential to avoid concurrent use of isosorbide and sildenafil to prevent adverse effects. Phenytoin, metronidazole, and prednisone do not have significant interactions with sildenafil and are not contraindicated when used together.
5. Which of the following is not related to drug toxicity of Atenolol?
- A. CHF
- B. Tachycardia
- C. AV block
- D. Sedative appearance
Correct answer: B
Rationale: Atenolol, a beta-blocker, is not typically associated with tachycardia. Instead, drug toxicity of Atenolol is more commonly linked to bradycardia due to its beta-blocking effects on the heart's electrical conduction system. Symptoms of Atenolol toxicity may include heart failure (CHF), AV block, and a sedative appearance, but not tachycardia.
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