ATI RN
ATI Pharmacology Proctored Exam
1. 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.
2. A client has a new prescription for Adalimumab for Rheumatoid Arthritis. Based on the route of administration of Adalimumab, which of the following should the nurse plan to monitor?
- A. The vein for thrombophlebitis during IV administration.
- B. The subcutaneous site for redness following injection.
- C. The oral mucosa for ulceration after oral administration.
- D. The skin for irritation following removal of transdermal patch.
Correct answer: B
Rationale: Adalimumab is administered subcutaneously for Rheumatoid Arthritis. Injection-site reactions such as redness and swelling are common. Therefore, the nurse should monitor the subcutaneous site for redness following the injection to assess for potential adverse effects.
3. A healthcare provider is reviewing the health history of a client who is starting therapy with tamoxifen. The healthcare provider should recognize that tamoxifen is contraindicated in which of the following clients?
- A. A client with a history of deep-vein thrombosis
- B. A client with a history of migraine headaches
- C. A client with a history of hypertension
- D. A client with a history of anemia
Correct answer: A
Rationale: Tamoxifen is contraindicated in clients with a history of thromboembolic events, such as deep-vein thrombosis, due to the increased risk of blood clots. The estrogenic effects of tamoxifen can further increase the risk of thromboembolic events, making it unsafe for individuals with a history of deep-vein thrombosis. Choice B (migraine headaches), Choice C (hypertension), and Choice D (anemia) are not contraindications for tamoxifen therapy. Migraine headaches, hypertension, and anemia do not pose the same risk of adverse effects related to blood clot formation as deep-vein thrombosis does.
4. When a client reports urticaria and dyspnea after receiving amoxicillin/clavulanic acid, which medication should be administered first?
- A. Administer epinephrine
- B. Administer albuterol
- C. Administer diphenhydramine
- D. Administer prednisone
Correct answer: A
Rationale: In the scenario described, the client is experiencing symptoms of a severe allergic reaction. The priority intervention is to administer epinephrine. Epinephrine acts quickly to reverse the effects of the allergic reaction and can be life-saving in cases of anaphylaxis. Albuterol is used for bronchodilation and may help with respiratory symptoms but is not the first-line treatment for anaphylaxis. Diphenhydramine and prednisone are used for allergic reactions but are not as rapid-acting as epinephrine and should be considered after administering epinephrine in this situation.
5. When starting a new prescription for prednisone, which instruction should the nurse include for the client?
- A. Increase your intake of potassium-rich foods.
- B. Do not stop taking this medication abruptly.
- C. Avoid grapefruit juice while taking this medication.
- D. Take the medication at bedtime to prevent drowsiness.
Correct answer: B
Rationale: The correct instruction for a client starting a new prescription for prednisone is not to stop taking the medication abruptly. Abrupt discontinuation of prednisone can lead to adrenal insufficiency, emphasizing the importance of gradual tapering under healthcare provider guidance. Increasing potassium-rich foods may be necessary based on individual needs, but it is not the priority instruction in this context. Grapefruit juice interaction is more commonly associated with certain medications but not specifically with prednisone. Taking prednisone at bedtime to prevent drowsiness is not a key instruction related to its administration.
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