ATI RN
Proctored Pharmacology ATI
1. A healthcare professional is preparing to administer morphine 4 mg IV to a client. Available is morphine 10 mg/mL. How many mL should the healthcare professional administer?
- A. 0.2 mL
- B. 0.4 mL
- C. 0.6 mL
- D. 0.8 mL
Correct answer: B
Rationale: To administer 4 mg from a solution of 10 mg/mL, the healthcare professional should administer 0.4 mL. The calculation is done by dividing the desired dose (4 mg) by the concentration of the solution (10 mg/mL), which equals 0.4 mL. Choice A (0.2 mL) is incorrect because it is half of the correct calculation. Choice C (0.6 mL) is incorrect because it is 50% more than the correct calculation. Choice D (0.8 mL) is incorrect because it exceeds the correct calculation.
2. A client has a new prescription for Losartan. Which of the following laboratory values should the nurse monitor?
- A. Serum potassium
- B. Serum sodium
- C. Serum calcium
- D. Serum magnesium
Correct answer: A
Rationale: Corrected Rationale: Losartan, an angiotensin II receptor blocker (ARB), can cause hyperkalemia by affecting the renin-angiotensin-aldosterone system. Monitoring serum potassium levels is crucial to detect and manage any potential hyperkalemia, which can lead to serious cardiac arrhythmias. Monitoring serum sodium, calcium, or magnesium levels is not typically required when a patient is on Losartan unless there are specific indications or comorbidities that warrant such monitoring.
3. A client has a new prescription for transdermal patches. Which statement should the client make to indicate understanding of the instructions?
- A. I will clean the site with an alcohol swab before applying the patch.
- B. I will rotate the application sites weekly.
- C. I will apply the patch to an area of skin with no hair.
- D. I will place the new patch on the site of the old patch.
Correct answer: C
Rationale: The correct answer is C. Applying the patch to a hairless area of skin is essential for optimal medication absorption. Hair can interfere with the patch's adherence and effectiveness. It is important for the client to choose a site without hair to ensure proper delivery of the medication. Choices A, B, and D are incorrect because cleaning the site with an alcohol swab (Choice A) is a good practice but not the most crucial aspect for transdermal patch application. Rotating application sites weekly (Choice B) is more relevant for injections to prevent skin irritation or breakdown. Placing the new patch on the site of the old patch (Choice D) can lead to skin irritation and poor absorption due to a build-up of medication.
4. 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.
5. A healthcare professional is preparing to administer a dose of Hydromorphone IV to a client. Which of the following actions should the healthcare professional take?
- A. Administer the medication over 5 minutes.
- B. Administer a dose of Naloxone prior to giving the Hydromorphone.
- C. Assess the client's blood pressure prior to administration.
- D. Inject the medication into the client's subcutaneous tissue.
Correct answer: A
Rationale: The correct action for the healthcare professional preparing to administer IV Hydromorphone to a client is to administer the medication over 5 minutes. This slow administration is crucial to reduce the risk of hypotension and respiratory depression. Administering the medication rapidly can lead to adverse effects. Option B, administering Naloxone prior to Hydromorphone, is incorrect because Naloxone is used as an antidote for opioid overdose, not as a routine pre-medication. Option C, assessing the client's blood pressure before administration, is important but not the immediate action to take to reduce adverse effects of Hydromorphone. Option D, injecting the medication into the client's subcutaneous tissue, is incorrect as Hydromorphone is meant for intravenous administration for rapid onset of action.
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