ATI RN
ATI Pharmacology Proctored Exam
1. A preschooler weighing 44 lb is to receive Amoxicillin 20 mg/kg/day PO divided equally every 12 hr. The available amoxicillin suspension is 250 mg/5 mL. How many mL should the nurse administer per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: First, convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, calculate the required dosage per dose: (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. To determine the mL per dose, divide the required dosage by the concentration of the amoxicillin suspension: (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the correct answer is 4 mL. Choice B (5 mL) is incorrect because the correct calculation yields 4 mL. Choices C (6 mL) and D (3 mL) are also incorrect as they do not align with the accurate calculation based on the provided information.
2. A healthcare professional is preparing to administer Butorphanol to a client who has a history of substance use disorder. The healthcare professional should identify which of the following information as true regarding Butorphanol?
- A. Butorphanol has a greater risk of abuse than morphine.
- B. Butorphanol causes a higher incidence of respiratory depression than morphine.
- C. Butorphanol cannot be reversed with an opioid antagonist.
- D. Butorphanol can cause abstinence syndrome in opioid-dependent clients.
Correct answer: D
Rationale: Corrected Rationale: Butorphanol, an opioid agonist/antagonist, can lead to abstinence syndrome in clients who are opioid-dependent. This syndrome may present with symptoms like abdominal pain, fever, and anxiety. It is crucial for healthcare professionals to consider this risk when administering Butorphanol to clients with a history of substance use disorder. Choices A, B, and C are incorrect. Butorphanol is less likely to be abused than morphine, causes less respiratory depression than morphine, and can be reversed with an opioid antagonist.
3. A client has a new prescription for Verapamil to control hypertension. Which of the following instructions should the nurse include?
- A. Increase the amount of dietary fiber in the diet.
- B. Drink grapefruit juice daily to increase vitamin C intake.
- C. Decrease the amount of calcium in the diet.
- D. Withhold food for 1 hr after taking the medication.
Correct answer: A
Rationale: Increasing dietary fiber intake is essential when taking Verapamil to prevent constipation, a common adverse effect of this medication. Verapamil is a calcium channel blocker used to treat hypertension, and dietary fiber helps maintain bowel regularity and prevent constipation that may occur as a side effect of the medication.
4. When teaching a client how to use nitroglycerin transdermal ointment for angina, which instruction should the nurse include?
- A. Remove the prior dose before applying a new dose.
- B. Rub the ointment directly into your skin until it is no longer visible.
- C. Cover the applied ointment with a clean gauze pad.
- D. Apply the ointment to the same skin area each time.
Correct answer: A
Rationale: The correct instruction is to remove the prior dose before applying a new dose. This helps prevent toxicity by ensuring the client does not inadvertently apply an excessive amount of nitroglycerin.
5. A client has a new prescription for transdermal patches. Which statement should the client make to indicate understanding of the instructions?
- A. I will clean the site with an alcohol swab before applying the patch.
- B. I will rotate the application sites weekly.
- C. I will apply the patch to an area of skin with no hair.
- D. I will place the new patch on the site of the old patch.
Correct answer: C
Rationale: The correct answer is C. Applying the patch to a hairless area of skin is essential for optimal medication absorption. Hair can interfere with the patch's adherence and effectiveness. It is important for the client to choose a site without hair to ensure proper delivery of the medication. Choices A, B, and D are incorrect because cleaning the site with an alcohol swab (Choice A) is a good practice but not the most crucial aspect for transdermal patch application. Rotating application sites weekly (Choice B) is more relevant for injections to prevent skin irritation or breakdown. Placing the new patch on the site of the old patch (Choice D) can lead to skin irritation and poor absorption due to a build-up of medication.
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