ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare provider is preparing to administer dextrose 5% in water (D5W) 750 mL IV to infuse over 6 hr. How many mL/hr should the IV pump be set to deliver?
- A. 125 mL/hr
- B. 100 mL/hr
- C. 150 mL/hr
- D. 200 mL/hr
Correct answer: A
Rationale: To calculate the flow rate, divide the total volume by the total time: (750 mL / 6 hr) = 125 mL/hr. Therefore, the IV pump should be set to deliver 125 mL/hr to infuse dextrose 5% in water (D5W) over 6 hours. Choice B, 100 mL/hr, is incorrect as it does not match the correct calculation. Choice C, 150 mL/hr, is incorrect as it is higher than the calculated flow rate. Choice D, 200 mL/hr, is incorrect as it is also higher than the calculated flow rate.
2. A healthcare professional is preparing to administer Pamidronate to a client who has bone pain related to cancer. Which of the following precautions should the healthcare professional take when administering pamidronate?
- A. Inspect the IV site for redness and irritation when changing the intravenous patch.
- B. Assess the IV site for thrombophlebitis frequently during administration.
- C. Instruct the client to sit upright or stand for 30 min following intravenous administration.
- D. Watch for manifestations of anaphylaxis for 20 min after intramuscular administration.
Correct answer: B
Rationale: Pamidronate is administered through intravenous (IV) infusion. As this medication can be irritating to veins, the healthcare professional should carefully assess the IV site for thrombophlebitis during administration to prevent potential complications. Choice A is incorrect as Pamidronate is not administered via intradermal patch. Choice C is incorrect as it does not relate to the administration of Pamidronate. Choice D is incorrect as Pamidronate is not administered intramuscularly.
3. 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.
4. A client is being discharged with a new prescription for Lisinopril. Which of the following instructions should be included by the healthcare provider?
- A. Avoid salt substitutes.
- B. Take this medication at bedtime.
- C. Increase your intake of potassium-rich foods.
- D. Take this medication with food.
Correct answer: A
Rationale: The correct answer is to instruct the client to avoid salt substitutes. Lisinopril, an ACE inhibitor, can lead to hyperkalemia, so it's essential to avoid salt substitutes that may contain potassium which can further elevate potassium levels. Choice B is incorrect because Lisinopril is typically taken once daily in the morning, not at bedtime. Choice C is incorrect as increasing potassium intake can exacerbate hyperkalemia when taking Lisinopril. Choice D is incorrect as Lisinopril is usually taken on an empty stomach, not with food.
5. What is the therapeutic action of Phenytoin?
- A. Antidiabetic
- B. Anticonvulsant
- C. Mood stabilizer
- D. Antianxiety agent
Correct answer: B
Rationale: Phenytoin is primarily used as an anticonvulsant to prevent and control seizures. It works by stabilizing electrical activity in the brain, making it effective in managing conditions like epilepsy. Antidiabetic medications are used to regulate blood sugar levels, mood stabilizers help manage mood disorders, and antianxiety agents are used to reduce anxiety symptoms, none of which are the primary therapeutic action of Phenytoin.
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