ATI RN
ATI Pharmacology
1. A client has a new prescription for Ferrous sulfate. Which of the following instructions should the nurse include?
- A. Take this medication with milk.
- B. Take this medication on an empty stomach.
- C. Take this medication before bedtime.
- D. Take this medication with antacids.
Correct answer: B
Rationale: The correct answer is to take Ferrous sulfate on an empty stomach. This medication is best absorbed when taken 1 hour before or 2 hours after meals. Instructing the client to take it with milk, before bedtime, or with antacids can decrease its absorption and effectiveness. Taking it with milk can reduce the absorption of iron due to the calcium in milk. Taking it before bedtime is not necessary and may cause gastrointestinal upset. Taking it with antacids can interfere with the absorption of iron.
2. A client informs a healthcare professional about taking Gingko Biloba. Which of the following medications is contraindicated for a client using Gingko Biloba?
- A. Acetaminophen
- B. Warfarin
- C. Digoxin
- D. Lisinopril
Correct answer: B
Rationale: Warfarin is contraindicated for a client taking Gingko Biloba due to the potential interaction that can lead to suppressed coagulation and an increased risk of bleeding or hemorrhage. Warfarin is an anticoagulant, and when combined with Gingko Biloba, which also has anticoagulant properties, the risk of bleeding complications is significantly heightened. Acetaminophen (Choice A), Digoxin (Choice C), and Lisinopril (Choice D) do not have significant interactions with Gingko Biloba compared to Warfarin. Acetaminophen is a pain reliever, Digoxin is a medication for heart conditions, and Lisinopril is an ACE inhibitor for hypertension.
3. A provider prescribes phenobarbital for a client who has a seizure disorder. The medication has a long half-life of 4 days. How many times per day should the nurse expect to administer this medication?
- A. One
- B. Two
- C. Three
- D. Four
Correct answer: A
Rationale: Phenobarbital has a long half-life of 4 days, meaning it remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should expect to administer phenobarbital once a day to maintain therapeutic levels and effectiveness. Administering it more than once a day would lead to unnecessary dosing and potential adverse effects as the medication remains active in the body for an extended period.
4. In reviewing a client's health record, which condition would be a contraindication for using Propranolol to treat hypertension?
- A. Asthma
- B. Glaucoma
- C. Hypertension
- D. Tachycardia
Correct answer: A
Rationale: Propranolol is a nonselective beta-adrenergic blocker that blocks both beta1 and beta2 receptors. Blocking beta2 receptors in the lungs can lead to bronchoconstriction, making it unsuitable for clients with asthma. Therefore, asthma is a contraindication for taking Propranolol. Glaucoma, hypertension, and tachycardia are not contraindications for using Propranolol to treat hypertension.
5. When teaching a client with a new prescription for Lithium, which instruction should the nurse include?
- A. Restrict fluid intake to 1,000 mL per day.
- B. Maintain a consistent sodium intake.
- C. Take the medication at bedtime.
- D. Expect to have frequent headaches.
Correct answer: B
Rationale: Maintaining a consistent sodium intake is crucial when taking Lithium to help regulate lithium levels in the body and prevent toxicity. Sodium levels can impact the effectiveness and safety of Lithium therapy. Restricting fluid intake to 1,000 mL per day (Choice A) is not appropriate and could lead to dehydration. Taking the medication at bedtime (Choice C) may vary depending on the individual's schedule but is not a critical instruction. Expecting to have frequent headaches (Choice D) is not a common side effect of Lithium.
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