ATI RN
ATI Pharmacology Proctored
1. Which of the following is the antidote for Heparin toxicity?
- A. Protamine
- B. Methylene blue
- C. N-acetylcysteine
- D. Glucagon
Correct answer: A
Rationale: Protamine is the specific antidote for Heparin toxicity. Heparin is an anticoagulant medication, and if an overdose occurs or if there is excessive bleeding due to Heparin use, protamine, a positively charged molecule, can neutralize the anticoagulant effects of Heparin by forming a complex with it. This binding prevents Heparin from further inhibiting coagulation factors and helps in reversing its effects.
2. Which drug is the antidote for Alprazolam?
- A. Physostigmine
- B. Protamine sulfate
- C. Flumazenil
- D. Acetylcysteine
Correct answer: C
Rationale: Flumazenil is the specific antidote used to reverse the effects of Alprazolam. Alprazolam is a benzodiazepine, and Flumazenil is a benzodiazepine receptor antagonist that works by competitively inhibiting the actions of benzodiazepines at the receptor site, effectively reversing their sedative and other effects. Physostigmine is not used as an antidote for benzodiazepine overdose and can have significant side effects. Protamine sulfate is used to reverse the effects of heparin, not benzodiazepines like Alprazolam. Acetylcysteine is used as an antidote for acetaminophen overdose, not benzodiazepines like Alprazolam.
3. A client has a new diagnosis of Fibromyalgia. Which of the following medications should the nurse anticipate being prescribed for this client?
- A. Colchicine
- B. Hydroxychloroquine
- C. Auranofin
- D. Duloxetine
Correct answer: D
Rationale: The correct answer is D, Duloxetine. Duloxetine is a serotonin-norepinephrine reuptake inhibitor commonly used to manage fibromyalgia. It helps in reducing pain and improving mood in individuals with this condition. Colchicine (Choice A) is primarily used to treat gout, while Hydroxychloroquine (Choice B) and Auranofin (Choice C) are medications used to manage conditions like rheumatoid arthritis and lupus, not fibromyalgia.
4. A client with end-stage cancer receiving Morphine has been prescribed Methylnaltrexone. The client's daughter asks about the purpose of Methylnaltrexone. Which response should the nurse provide?
- A. The medication will increase your mother's respirations.
- B. The medication will prevent dependence on the Morphine.
- C. The medication will relieve your mother's constipation.
- D. The medication works with the Morphine to increase pain relief.
Correct answer: C
Rationale: Methylnaltrexone is an opioid antagonist used to treat severe constipation unresponsive to laxatives in opioid-dependent clients. It functions by blocking the mu opioid receptors in the gastrointestinal tract, helping alleviate constipation associated with opioid use. Choices A, B, and D are incorrect. Methylnaltrexone does not increase respirations, prevent dependence on Morphine, or work with Morphine to increase pain relief; its primary purpose is to relieve opioid-induced constipation.
5. A client has a prescription for gentamicin for the treatment of an infection. Which finding indicates a potential adverse reaction to the medication?
- A. Blood pressure 160/90 mm Hg
- B. Presence of red blood cells in the urine
- C. Urine output of 35 mL/hr
- D. Respiratory rate of 22/min
Correct answer: B
Rationale: The presence of red blood cells in the urine can indicate nephrotoxicity, which is a potential adverse effect of gentamicin. Gentamicin can cause damage to the kidneys, leading to the presence of red blood cells in the urine as a sign of renal impairment. Monitoring for this finding is crucial to detect and manage adverse reactions promptly. High blood pressure (Choice A) is not typically associated with gentamicin use. Low urine output (Choice C) is more suggestive of kidney injury rather than nephrotoxicity specifically related to gentamicin. Respiratory rate (Choice D) is not a common indicator of adverse reactions to gentamicin.
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