ATI RN
ATI Pharmacology
1. A hospitalized client has an activated partial thromboplastin time (aPTT) greater than 1.5 times the expected reference range. Which of the following blood products should be prepared for transfusion?
- A. Whole blood
- B. Platelets
- C. Fresh frozen plasma
- D. Packed red blood cells
Correct answer: C
Rationale: Fresh frozen plasma is the appropriate blood product for a client with an elevated aPTT as it contains various coagulation factors that can help correct coagulopathies and prevent bleeding. Elevated aPTT indicates a deficiency in specific clotting factors, and fresh frozen plasma is rich in these factors. Whole blood, platelets, and packed red blood cells do not contain the necessary coagulation factors to correct an elevated aPTT, so they are not indicated in this situation.
2. Which drug undergoes extensive first-pass hepatic metabolism?
- A. Heparin
- B. Insulin
- C. Propranolol
- D. Nitroglycerin
Correct answer: C
Rationale: Propranolol undergoes extensive first-pass hepatic metabolism in the liver. When administered orally, propranolol is extensively metabolized by the liver before reaching systemic circulation, leading to reduced bioavailability. This process is known as first-pass hepatic metabolism, which significantly affects the drug's effectiveness and necessitates higher oral doses compared to other routes of administration. Heparin (Choice A) is not metabolized by the liver but excreted unchanged by the kidneys. Insulin (Choice B) is a peptide hormone that is not subject to significant first-pass metabolism. Nitroglycerin (Choice D) is primarily metabolized in the blood and tissues, bypassing significant first-pass metabolism in the liver.
3. A client with angina is being taught how to use nitroglycerin transdermal ointment. Which instruction should the nurse include?
- A. Remove the prior dose before applying a new dose.
- B. Rub the ointment directly into the 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 one to prevent toxicity. Nitroglycerin ointment can cause adverse effects if accumulated doses are not removed. Rubbing the ointment until it's not visible or covering it with gauze may alter absorption. Applying it to the same area each time can lead to skin irritation or desensitization.
4. When educating a client with a new prescription for Omeprazole to manage GERD, which of the following information should the nurse include?
- A. Take the medication before meals.
- B. You may need to take this medication for a long time.
- C. Increase your intake of vitamin C while taking this medication.
- D. Expect immediate relief of symptoms.
Correct answer: A
Rationale: The correct answer is to take the medication before meals. Omeprazole should be taken before meals to ensure its effectiveness in reducing stomach acid production. This timing allows the medication to work on reducing acid secretion when the stomach is most actively producing it, leading to better control of symptoms. Choice B is incorrect because not all patients with GERD need to take Omeprazole for the rest of their lives; the duration of treatment varies. Choice C is incorrect as there is no specific recommendation to increase vitamin C intake while taking Omeprazole. Choice D is incorrect because Omeprazole may take a few days to start providing symptom relief, so immediate relief should not be expected.
5. A client has a new prescription for Buspirone to treat Anxiety. Which of the following information should the nurse include?
- A. Take this medication with food.
- B. Expect optimal therapeutic effects within 24 hours.
- C. Take this medication daily for anxiety.
- D. This medication has a low risk for dependency.
Correct answer: D
Rationale: The nurse should educate the client that Buspirone has a low risk for physical or psychological dependence or tolerance. This information is crucial for the client to understand the medication's safety profile and potential risks associated with long-term use.
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