ATI RN
ATI Pharmacology
1. A client has a new prescription for Brimonidine ophthalmic drops and wears soft contact lenses. Which of the following instructions should the nurse include in the teaching?
- A. This medication can stain your contacts.
- B. This medication can cause your pupils to constrict.
- C. This medication can absorb into your contacts.
- D. This medication can slow your heart rate.
Correct answer: C
Rationale: The correct instruction the nurse should include is that Brimonidine can absorb into soft contact lenses. To prevent this, the client should remove the contacts, instill the medication, and wait at least 15 minutes before putting the contacts back in to avoid any potential absorption of the medication into the lenses. Choices A, B, and D are incorrect because Brimonidine is not known to stain contacts, cause pupil constriction, or slow heart rate.
2. A client is receiving treatment with bevacizumab. Which of the following findings should the nurse monitor?
- A. Hypertension
- B. Hypokalemia
- C. Hyperglycemia
- D. Hypocalcemia
Correct answer: A
Rationale: Corrected Rationale: Bevacizumab is known to potentially cause hypertension as a common adverse effect. The nurse should monitor the client's blood pressure regularly to detect and manage any elevations effectively. Choices B, C, and D are incorrect because bevacizumab is not typically associated with causing hypokalemia, hyperglycemia, or hypocalcemia. Therefore, monitoring for hypertension is the priority in this case.
3. What is the pharmacological action of metformin?
- A. Blocks stimulation of beta1 and beta2.
- B. Blocks vasoconstriction and aldosterone.
- C. Acts at many levels in the CNS to produce an anxiolytic effect.
- D. Decreases hepatic glucose production.
Correct answer: D
Rationale: The correct answer is D: Decreases hepatic glucose production. Metformin's primary pharmacological action is to decrease hepatic glucose production, leading to lower blood sugar levels and improved insulin sensitivity in the liver. Choices A, B, and C are incorrect because metformin does not block stimulation of beta1 and beta2 receptors, vasoconstriction, aldosterone, or act in the CNS to produce an anxiolytic effect. Therefore, these options are not reflective of metformin's mechanism of action.
4. A client is starting a course of Metronidazole to treat an infection. For which of the following adverse effects should the client stop taking Metronidazole and notify the provider?
- A. Metallic taste
- B. Nausea
- C. Ataxia
- D. Dark-colored urine
Correct answer: C
Rationale: The correct answer is C, 'Ataxia.' Ataxia is a sign of central nervous system (CNS) toxicity, which can be a severe adverse effect of Metronidazole. Metallic taste and nausea are common side effects of Metronidazole but do not require stopping the medication unless they persist or worsen. Dark-colored urine is not typically associated with Metronidazole and does not indicate a severe adverse effect.
5. A toddler is being admitted to the hospital after an Acetaminophen overdose. Which of the following medications should the nurse anticipate administering to this patient?
- A. Acetylcysteine
- B. Pegfilgrastim
- C. Misoprostol
- D. Naltrexone
Correct answer: A
Rationale: In cases of Acetaminophen overdose, acetylcysteine is the antidote of choice. Acetylcysteine helps prevent liver damage by replenishing depleted glutathione levels, which is essential for detoxifying acetaminophen metabolites. Pegfilgrastim is a medication used to stimulate white blood cell production, Misoprostol is a medication for preventing stomach ulcers, and Naltrexone is used for treating opioid addiction and alcoholism, but none of these are indicated for Acetaminophen overdose.
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