ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client is receiving moderate sedation with Diazepam IV and is oversedated. Which of the following medications should the nurse anticipate administering to this client?
- A. Ketamine
- B. Naltrexone
- C. Flumazenil
- D. Fluvoxamine
Correct answer: C
Rationale: Flumazenil is a competitive benzodiazepine antagonist that can reverse the sedative effects of benzodiazepines like Diazepam. In cases of oversedation, administering Flumazenil can help counteract the excessive sedation and other effects of Diazepam, thereby promoting the client's recovery and preventing potential complications. Ketamine (Choice A) is a dissociative anesthetic and not used to reverse benzodiazepine sedation. Naltrexone (Choice B) is an opioid receptor antagonist, not indicated for benzodiazepine oversedation. Fluvoxamine (Choice D) is an antidepressant and not used to reverse the sedative effects of benzodiazepines.
2. While caring for a client taking Propylthiouracil, for which of the following adverse effects should the nurse monitor?
- A. Bradycardia
- B. Insomnia
- C. Heat intolerance
- D. Weight loss
Correct answer: A
Rationale: When a client is taking Propylthiouracil, the nurse should monitor for bradycardia as it is an adverse effect of this medication. Propylthiouracil can lead to a decrease in heart rate, which is known as bradycardia. Monitoring for this adverse effect is crucial to ensure the client's safety and well-being while on this medication. The other options, such as insomnia, heat intolerance, and weight loss, are not commonly associated adverse effects of Propylthiouracil. Therefore, they are incorrect choices for monitoring while the client is on this medication.
3. A client is receiving heparin therapy. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The corrected answer is B: aPTT. The activated partial thromboplastin time (aPTT) is the laboratory value used to monitor the effectiveness of heparin therapy. The aPTT should be maintained at 1.5 to 2 times the normal level to ensure therapeutic anticoagulation. Monitoring aPTT helps healthcare providers adjust heparin doses to achieve the desired anticoagulant effects and prevent complications such as bleeding or clotting. Choice A, PT (prothrombin time), is used to monitor warfarin therapy, not heparin. Choice C, INR (international normalized ratio), is also used to monitor warfarin therapy. Choice D, platelet count, is important for assessing the risk of bleeding, but it does not directly monitor the effectiveness of heparin therapy.
4. When a client is prescribed hydrochlorothiazide, what adverse effect should they monitor for as instructed by the nurse?
- A. Hyponatremia
- B. Ototoxicity
- C. Hypoglycemia
- D. Hyperkalemia
Correct answer: A
Rationale: Hyponatremia is a critical adverse effect associated with hydrochlorothiazide use. This medication is a diuretic that can lead to excessive loss of sodium and water from the body, potentially causing low sodium levels and resulting in hyponatremia. Monitoring for signs and symptoms of hyponatremia, such as confusion, headache, weakness, and muscle cramps, is essential to prevent serious complications. Ototoxicity (choice B) is not a common adverse effect of hydrochlorothiazide. Hypoglycemia (choice C) and hyperkalemia (choice D) are also not typically associated with hydrochlorothiazide use.
5. What is a desired outcome of the drug Phenytoin?
- A. Decrease symptoms of PTSD
- B. Resolution of signs of infection
- C. Decrease or cessation of seizures without excessive sedation
- D. Prevention or relief of bronchospasm
Correct answer: C
Rationale: The correct answer is C: Decrease or cessation of seizures without excessive sedation. Phenytoin is primarily used as an antiepileptic medication to manage and prevent seizures. It does not directly impact symptoms of PTSD (Choice A), resolution of signs of infection (Choice B), or prevention or relief of bronchospasm (Choice D). Therefore, the desired outcome of Phenytoin is to control seizures effectively while avoiding excessive sedation.
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