Which of the following patients would be at higher risk of experiencing adverse drug reactions (ADRs):
- A. A 32-year-old male
- B. A 22-year-old female
- C. A 3-month-old female
- D. A 48-year-old male
Correct Answer: C
Rationale: Choice C is correct because a 3-month-old female is at higher risk for ADRs due to immature liver and kidney function, reducing drug metabolism and excretion, increasing toxicity potential. Choice A is incorrect as a healthy 32-year-old male typically has mature systems. Choice B is wrong because a 22-year-old female also has developed metabolism. Choice D is incorrect since a 48-year-old male, unless compromised, has lower risk than an infant.
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Strategies to prevent misuse of prescription drugs include:
- A. Using prescription drug monitoring programs
- B. Educating patients about risks
- C. Prescribing the lowest effective dose
- D. All of the above
Correct Answer: D
Rationale: Choice D is correct because PDMPs track dispensing, education deters misuse, and lowest doses minimize excess—all proven prevention methods. Choice A is incorrect alone as it's one tool. Choice B is wrong by itself because education is just part. Choice C is incorrect solo since dosing is only one strategy.
The client has atrial fibrillation and is receiving warfarin (Coumadin) therapy. Which laboratory test should be monitored to evaluate the effectiveness of the warfarin therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Complete blood count (CBC)
- D. Fibrinogen levels
Correct Answer: A
Rationale: Monitoring the Prothrombin time (PT) and international normalized ratio (INR) is crucial for assessing the effectiveness of warfarin therapy. These tests help determine the clotting ability of the blood and ensure that the client is within the desired therapeutic range to prevent clotting events or bleeding complications. Activated partial thromboplastin time (aPTT) (Choice B) is more commonly used to monitor heparin therapy, not warfarin. Complete blood count (CBC) (Choice C) and fibrinogen levels (Choice D) do not directly assess the effectiveness of warfarin therapy in the same way that PT and INR do.
The healthcare professional is assisting in the care of a client diagnosed with heart failure. The client is receiving furosemide (Lasix). Which laboratory value should the healthcare professional monitor most closely?
- A. Serum calcium
- B. Serum potassium
- C. Serum sodium
- D. Serum glucose
Correct Answer: B
Rationale: Furosemide is a loop diuretic that can lead to significant potassium loss, making it crucial to monitor the client's serum potassium levels. Hypokalemia (low potassium levels) can result from furosemide use, potentially leading to adverse effects such as cardiac dysrhythmias. Therefore, close monitoring of serum potassium levels is essential to prevent complications in clients receiving furosemide. Monitoring serum calcium, sodium, or glucose levels is not the priority when administering furosemide.
Drugs that should be avoided in the elderly include:
- A. Acetaminophen
- B. Amitriptyline
- C. Amoxicillin
- D. All of the above
Correct Answer: B
Rationale: Choice B is correct because amitriptyline, a tricyclic antidepressant, is avoided in the elderly (per Beers Criteria) due to anticholinergic effects causing confusion, constipation, and falls. Choice A is incorrect as acetaminophen is safe. Choice C is wrong because amoxicillin is appropriate with dose adjustment. Choice D is incorrect since only amitriptyline fits.
A client has a new prescription for transdermal nitroglycerin patches. Which of the following instructions should be included for proper use?
- A. Apply the patch to the same site each day.
- B. Place the patch on an area of skin away from skin folds and joints.
- C. Keep the patch on 24 hours per day.
- D. Replace the patch every 72 hours.
Correct Answer: B
Rationale: Placing the nitroglycerin patch on an area of skin away from skin folds and joints is crucial to ensure optimal absorption and effectiveness of the medication. Placing the patch on skin folds or joints can interfere with absorption, potentially reducing the patch's efficacy. Therefore, it is essential to follow this instruction to maximize the therapeutic benefits of the nitroglycerin patches. The other options are incorrect because applying the patch to the same site each day can lead to skin irritation, keeping the patch on 24 hours per day may not be necessary depending on the specific patch instructions, and replacing the patch every 72 hours is not the standard frequency for nitroglycerin patches.