ATI RN
ATI Pharmacology Quizlet
1. A healthcare provider is providing teaching to a client who is starting therapy with paclitaxel. Which of the following adverse effects should the healthcare provider instruct the client to monitor?
- A. Bradycardia
- B. Diarrhea
- C. Neutropenia
- D. Urinary retention
Correct answer: C
Rationale: The correct answer is C: Neutropenia. Paclitaxel commonly causes neutropenia due to bone marrow suppression. It is essential for clients receiving this medication to monitor for signs of neutropenia, such as fever, chills, and increased susceptibility to infections, as it can increase the risk of serious complications.
2. A client presents in the Emergency Department with chest pain. Which of the following conditions is least likely to cause chest pain?
- A. Arthritis
- B. Peptic ulcer disease
- C. Myocardial infarction
- D. Gastric reflux
Correct answer: A
Rationale: Arthritis is a condition primarily affecting the joints and is not known to cause chest pain. Peptic ulcer disease, myocardial infarction, and gastric reflux are conditions that can present with chest pain due to various reasons such as inflammation, ischemia, or reflux of stomach acid into the esophagus, respectively.
3. While providing an Angiotensin-converting enzyme (ACE) inhibitor, the patient asks what the action of the drug is. As a healthcare provider, you explain that the action of an ACE inhibitor is:
- A. To lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II
- B. To inhibit reabsorption of sodium back into the body, ultimately increasing urine output and lowering blood pressure
- C. To decrease heart rate and blood pressure by competing with Beta1 and Beta2 receptors in the heart and lungs
- D. To lower blood glucose by stimulating the release of insulin
Correct answer: A
Rationale: ACE inhibitors lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II. Angiotensin II is a potent vasoconstrictor, and by inhibiting its formation, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload on the heart. Choice B is incorrect as it describes the mechanism of action of diuretics, not ACE inhibitors. Choice C is incorrect as it refers to the action of beta-blockers, not ACE inhibitors. Choice D is incorrect as it describes the mechanism of action of antidiabetic medications, not ACE inhibitors.
4. 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.
5. A client has a prescription for Erythromycin. Which of the following instructions should be included?
- A. Take the medication with food.
- B. Expect your urine to turn dark yellow.
- C. Take the medication with a full glass of milk.
- D. Report persistent diarrhea to your provider.
Correct answer: D
Rationale: The correct answer is D: 'Report persistent diarrhea to your provider.' Erythromycin is known to cause Clostridium difficile-associated diarrhea, which can be severe. Instructing the client to report any persistent diarrhea to their healthcare provider promptly is crucial to prevent complications. Choices A, B, and C are incorrect. Taking Erythromycin with food is generally recommended to reduce stomach upset, but it is not the most critical instruction. Expecting urine to turn dark yellow is not a common side effect of Erythromycin. Taking Erythromycin with a full glass of milk is not necessary and may not be appropriate for all clients, especially those with lactose intolerance or dairy allergies.
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