ATI RN
Proctored Pharmacology ATI
1. Which drug undergoes extensive first-pass hepatic metabolism?
- A. Heparin
- B. Insulin
- C. Propranolol
- D. Nitroglycerin
Correct answer: C
Rationale: Propranolol undergoes extensive first-pass hepatic metabolism in the liver. When administered orally, propranolol is extensively metabolized by the liver before reaching systemic circulation, leading to reduced bioavailability. This process is known as first-pass hepatic metabolism, which significantly affects the drug's effectiveness and necessitates higher oral doses compared to other routes of administration. Heparin (Choice A) is not metabolized by the liver but excreted unchanged by the kidneys. Insulin (Choice B) is a peptide hormone that is not subject to significant first-pass metabolism. Nitroglycerin (Choice D) is primarily metabolized in the blood and tissues, bypassing significant first-pass metabolism in the liver.
2. A client with OCD has a new prescription for Paroxetine. Which of the following instructions should the nurse include?
- A. It can take several weeks before you feel like the medication is helping.
- B. Take the medication just before bedtime to promote sleep.
- C. You should take the medication when needed for obsessive urges.
- D. Monitor for weight gain while taking this medication.
Correct answer: A
Rationale: The correct answer is A. Paroxetine, an antidepressant commonly used for OCD, typically takes 1 to 4 weeks before the client experiences the full therapeutic benefit. Therefore, informing the client that it may take several weeks before feeling the medication's effects is crucial to manage expectations and ensure compliance with the treatment plan. Choice B is incorrect because Paroxetine is usually taken in the morning due to its activating effects and may cause insomnia if taken before bedtime. Choice C is incorrect because Paroxetine should be taken regularly as prescribed, not just when experiencing obsessive urges. Choice D is incorrect because although weight gain can be a side effect of Paroxetine, it is not a priority instruction compared to the delayed onset of therapeutic effects.
3. A client has been prescribed an ACE Inhibitor for hypertension. Which of the following instructions should be included by the healthcare provider?
- A. Avoid salt substitutes.
- B. Take this medication at bedtime.
- C. Avoid foods high in potassium.
- D. Limit your fluid intake.
Correct answer: A
Rationale: The correct answer is to 'Avoid salt substitutes.' ACE Inhibitors can increase potassium levels, so clients should avoid salt substitutes that contain potassium to prevent hyperkalemia, which is a potential side effect of ACE Inhibitors. Choice B 'Take this medication at bedtime' is incorrect as ACE Inhibitors are usually taken in the morning to avoid nocturnal diuresis. Choice C 'Avoid foods high in potassium' is incorrect because although ACE Inhibitors can increase potassium levels, clients are generally encouraged to consume potassium-rich foods in moderation unless contraindicated. Choice D 'Limit your fluid intake' is also incorrect as ACE Inhibitors do not typically require fluid restrictions unless specified by a healthcare provider for other reasons.
4. 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.
5. A healthcare provider is educating a group of new parents about immunizations. The provider should instruct the parents that the series for which of the following vaccines is completed prior to the first birthday?
- A. Pneumococcal conjugate vaccine
- B. Meningococcal conjugate vaccine
- C. Varicella vaccine
- D. Rotavirus vaccine
Correct answer: D
Rationale: The correct answer is D, Rotavirus vaccine. The series for the Rotavirus vaccine is completed prior to the first birthday as it is only administered to infants less than 8 months of age. This vaccine provides protection against severe diarrhea and vomiting caused by rotavirus infection, which is common in infants and young children. Choices A, B, and C are incorrect because the series for these vaccines extends beyond the first birthday. Pneumococcal conjugate vaccine and Meningococcal conjugate vaccine are typically given in multiple doses up to 2 years of age, while the Varicella vaccine is usually administered between 12 to 15 months of age.
Similar Questions
Access More Features
ATI RN Basic
$69.99/ 30 days
- 5,000 Questions with answers
- All ATI courses Coverage
- 30 days access
ATI RN Premium
$149.99/ 90 days
- 5,000 Questions with answers
- All ATI courses Coverage
- 30 days access