ATI RN
ATI Pharmacology
1. A client is receiving heparin therapy. Which laboratory value should be monitored by the nurse to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The activated partial thromboplastin time (aPTT) is specifically used to monitor the effectiveness of heparin therapy. It should be maintained at 1.5 to 2 times the normal level. Monitoring aPTT helps ensure that the therapeutic range of heparin is achieved to prevent clot formation while minimizing the risk of bleeding complications. Choice A (PT) is incorrect as it is used to monitor warfarin therapy, not heparin. Choice C (INR) is also incorrect as it is primarily used to monitor warfarin therapy. Choice D (Platelet count) is not directly related to monitoring the effectiveness of heparin therapy.
2. A client is taking oral Oxycodone and Ibuprofen. The nurse should identify that an interaction between these two medications will cause which of the following findings?
- A. A decrease in serum levels of ibuprofen, possibly leading to a need for increased doses of this medication.
- B. A decrease in serum levels of oxycodone, possibly leading to a need for increased doses of this medication.
- C. An increase in the expected therapeutic effect of both medications.
- D. An increase in expected adverse effects for both medications.
Correct answer: C
Rationale: The interaction between oxycodone and ibuprofen results in an increase in the expected therapeutic effect of both medications. Oxycodone is a narcotic analgesic, while ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID). They work through different mechanisms but complement each other in pain management. When taken together, they can enhance the pain-relieving effects of each other, providing better pain relief for the client.
3. A healthcare professional is preparing a client's medications. Which of the following actions should the professional take to follow legal practice guidelines? (Select all that apply.)
- A. Maintain skill competency.
- B. Determine the dosage.
- C. Monitor for adverse effects.
- D. Safeguard medications.
Correct answer: A
Rationale: Maintaining skill competency is a critical aspect of legal practice guidelines for healthcare professionals. It is essential to ensure that healthcare professionals are competent and up-to-date with their skills to provide safe and effective care to patients. While determining the dosage, monitoring for adverse effects, and safeguarding medications are important aspects of medication administration, maintaining skill competency is a fundamental legal responsibility that ensures the delivery of quality care. Determining the dosage and monitoring for adverse effects are clinical responsibilities, while safeguarding medications pertains to proper storage and handling, not specifically related to legal practice guidelines.
4. A client has a new prescription for Metoprolol to treat hypertension. Which of the following instructions should the nurse include?
- A. Stop taking the medication if your heart rate is below 70/min.
- B. Take the medication with food.
- C. Avoid sudden changes in position.
- D. Limit your sodium intake while taking this medication.
Correct answer: C
Rationale: The correct instruction for a client taking Metoprolol, a medication used to treat hypertension, is to avoid sudden changes in position. Metoprolol can cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down to standing up, leading to dizziness and falls. By advising the client to change positions slowly, the nurse helps prevent these adverse effects and promotes safety.
5. Which of the following drugs is associated with the reaction of Cinchonism?
- A. Valproic acid
- B. Quinidine
- C. Isoniazid
- D. Ethosuximide
Correct answer: B
Rationale: Cinchonism is associated with Quinidine, not Valproic acid, Isoniazid, or Ethosuximide. Cinchonism is characterized by symptoms such as tinnitus, dizziness, and headaches. Quinidine, being an antiarrhythmic agent, can lead to this condition as a side effect.
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