ATI RN
ATI Pharmacology Proctored Exam 2024
1. A staff educator is reviewing medication dosages and factors that influence medication metabolism with a group of nurses at an in-service presentation. Which of the following factors should the educator include as a reason to administer lower medication dosages? (Select all that apply.)
- A. Increased renal secretion
- B. Increased medication-metabolizing enzymes
- C. Liver failure
- D. Peripheral vascular disease
Correct answer: C
Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. When liver function is compromised, lower dosages are necessary to prevent adverse effects. Increased renal secretion is not a reason for lower medication dosages, as it primarily affects excretion rather than metabolism. Increased medication-metabolizing enzymes would usually require higher dosages to achieve the desired effect. Peripheral vascular disease does not directly impact medication metabolism or dosage requirements.
2. A healthcare professional is admitting a toddler to the hospital after an Acetaminophen overdose. Which of the following medications should the healthcare professional anticipate administering to this client?
- A. Acetylcysteine
- B. Pegfilgrastim
- C. Misoprostol
- D. Naltrexone
Correct answer: A
Rationale: The correct answer is Acetylcysteine. Acetylcysteine is the antidote for acetaminophen overdose. It works by replenishing glutathione, which is depleted in cases of acetaminophen overdose, thus preventing liver damage. Pegfilgrastim is a medication used to stimulate white blood cell production, misoprostol is a medication used to prevent gastric ulcers, and naltrexone is used in the management of opioid addiction and alcohol dependence, which are not indicated in the scenario described.
3. When teaching a client with a new prescription for nitroglycerin patches, which of the following instructions should the nurse include?
- A. Apply the patch at the same time every day.
- B. Rotate the application site daily.
- C. Remove the patch for 12 hours each day.
- D. Cut the patch in half if needed.
Correct answer: B
Rationale: The correct instruction for a client with a new prescription for nitroglycerin patches is to rotate the application site daily. This is important to prevent skin irritation and ensure optimal absorption of the medication. Applying the patch at the same time every day (Choice A) is not necessary for nitroglycerin patches. Removing the patch for 12 hours each day (Choice C) would disrupt the continuous delivery of medication. Cutting the patch in half (Choice D) can alter the dose and is not recommended unless directed by a healthcare provider.
4. When reviewing a client's health record, a nurse notes a new prescription for Lisinopril 10 mg PO once daily. The nurse should identify this as which type of prescription?
- A. Single
- B. Stat
- C. Routine
- D. Standing
Correct answer: C
Rationale: A routine prescription indicates medications to be administered on a regular schedule without a termination date or a specific number of doses. In this case, Lisinopril 10 mg PO once daily falls under a routine prescription, meaning the nurse will administer this medication daily until the provider discontinues it. Choices A, B, and D are incorrect: A 'single' prescription is for a one-time dose, 'stat' prescriptions are for immediate administration, and 'standing' prescriptions are pre-authorized for administration as needed within specified parameters.
5. What is the first type of medication prescribed to prevent angina pain for a client?
- A. Beta blockers
- B. Alpha blockers
- C. Calcium channel blockers
- D. Organic nitrates
Correct answer: A
Rationale: Beta blockers are the first-line medication prescribed to prevent angina pain. They work by reducing the heart rate and blood pressure, decreasing the heart's demand for oxygen. This helps in preventing angina attacks by improving blood flow to the heart. Alpha blockers, calcium channel blockers, and organic nitrates are also used in angina treatment but are typically considered after beta blockers.
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