ATI RN
ATI Pharmacology Quizlet
1. A client with increased liver enzymes is taking herbal supplements. Which of the following herbal supplements should the nurse report to the provider?
- A. Glucosamine
- B. Saw palmetto
- C. Kava
- D. St. John's wort
Correct answer: C
Rationale: The nurse should report kava to the provider because chronic use or high doses of kava can lead to liver damage, including severe liver failure. It is crucial for the nurse to be vigilant about any herbal supplement that could potentially worsen the client's liver condition.
2. A client has a new prescription for Verapamil. Which of the following instructions should the nurse include?
- A. Increase your intake of high-fiber foods.
- B. Take the medication with grapefruit juice.
- C. Expect to feel drowsy or lightheaded.
- D. Avoid dairy products while taking this medication.
Correct answer: A
Rationale: The correct instruction to include when a client is prescribed Verapamil is to increase their intake of high-fiber foods. Verapamil can cause constipation as a side effect, and increasing fiber intake can help prevent constipation. High-fiber foods promote bowel regularity and can counteract the constipating effects of Verapamil. Choices B, C, and D are incorrect because taking Verapamil with grapefruit juice can lead to adverse reactions, drowsiness or lightheadedness is not a typical side effect of Verapamil, and there is no need to avoid dairy products specifically while taking this medication.
3. A client's plasma Lithium level is 2.1 mEq/L. Which of the following is an appropriate action by the nurse?
- A. Perform immediate gastric lavage.
- B. Prepare the client for hemodialysis.
- C. Administer an additional oral dose of lithium.
- D. Request a stat repeat of the laboratory test.
Correct answer: A
Rationale: In a client with a plasma lithium level of 2.1 mEq/L, immediate gastric lavage is appropriate for severe toxicity. Gastric lavage can help lower the client's lithium level by removing the unabsorbed lithium from the stomach.
4. While caring for a client receiving Heparin therapy, which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. INR
- C. aPTT
- D. Platelet count
Correct answer: C
Rationale: The nurse should monitor the aPTT (activated partial thromboplastin time) when caring for a client receiving Heparin therapy. The aPTT reflects the intrinsic pathway of the clotting cascade and is used to monitor the effectiveness of heparin, which primarily affects this pathway by potentiating antithrombin III. Monitoring the aPTT helps ensure that the client's blood is within the therapeutic range to prevent thrombus formation. Choices A, B, and D are incorrect. PT (Prothrombin Time) and INR (International Normalized Ratio) are used to monitor Warfarin therapy, not Heparin. Platelet count is important in assessing for thrombocytopenia but is not a specific indicator of Heparin therapy effectiveness.
5. A client with a UTI and a history of recurrent infections asks why the provider has not yet prescribed an antibiotic. The nurse should explain that the provider has to wait for the results of which of the following laboratory tests to identify which antibiotic to prescribe?
- A. Gram stain
- B. Culture
- C. Sensitivity
- D. Specific gravity
Correct answer: C
Rationale: In the case of a UTI, a sensitivity test is crucial as it identifies the most effective antibiotic to target the specific microorganism causing the infection. This test helps in prescribing the appropriate antibiotic for successful treatment and preventing antibiotic resistance. While a Gram stain and culture are important in diagnosing a UTI, the sensitivity test specifically determines the most suitable antibiotic. Specific gravity, on the other hand, is not related to identifying the appropriate antibiotic for a UTI.
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