ATI RN
ATI Pharmacology Proctored Exam 2023 Quizlet
1. 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.
2. ACE Inhibitors are used in the treatment of all EXCEPT:
- A. Hypertension
- B. Heart Failure
- C. Hypotension
- D. Diabetic nephropathy
Correct answer: C
Rationale: ACE inhibitors are commonly used in the treatment of hypertension, heart failure, and diabetic nephropathy due to their ability to reduce blood pressure, improve heart function, and protect the kidneys. However, they are not indicated for hypotension as they can further lower blood pressure, worsening the condition. Therefore, the correct answer is C. Choice A, hypertension, is correct as ACE inhibitors are a first-line treatment for this condition. Choice B, heart failure, is also correct as ACE inhibitors help improve heart function in patients with heart failure. Choice D, diabetic nephropathy, is correct as ACE inhibitors can slow the progression of kidney damage in diabetic patients.
3. A patient states he experiences anxiety and has panic attacks at least once a week. What might be helpful for this patient?
- A. Phenytoin (Dilantin)
- B. Lithium
- C. Alprazolam (Xanax)
- D. Spironolactone
Correct answer: C
Rationale: Alprazolam (Xanax) is a medication commonly prescribed to treat anxiety disorders and panic attacks. It belongs to the class of medications known as benzodiazepines, which work by enhancing the effects of gamma-aminobutyric acid (GABA) in the brain to produce a calming effect. Phenytoin is an antiepileptic drug, not typically used for anxiety or panic attacks. Lithium is primarily used to treat bipolar disorder, not anxiety. Spironolactone is a diuretic primarily used to treat conditions like high blood pressure and heart failure, not anxiety or panic attacks.
4. What is the pharmacological class of Lithium?
- A. Antidiabetics, biguanides
- B. Mood stabilizers
- C. Antiarrhythmics, anticonvulsants
- D. Vascular headache suppressants
Correct answer: B
Rationale: Lithium is classified as a mood stabilizer due to its primary use in managing bipolar disorder, where it helps stabilize mood swings and prevent episodes of mania and depression. While it can have other effects on the body, its main therapeutic role lies in its mood-stabilizing properties. Choices A, C, and D are incorrect as lithium is not classified as antidiabetics, biguanides, antiarrhythmics, anticonvulsants, or vascular headache suppressants. Its main pharmacological class is mood stabilizers.
5. What symptoms should a patient taking Omeprazole report to the healthcare provider?
- A. Black, tarry stools
- B. Diarrhea
- C. Abdominal pain
- D. All of the above
Correct answer: D
Rationale: Patients taking Omeprazole should report black, tarry stools, diarrhea, or abdominal pain to the healthcare provider because these symptoms could indicate serious side effects associated with the medication. Black, tarry stools may suggest gastrointestinal bleeding, diarrhea can be a sign of a gastrointestinal infection or adverse drug reaction, and abdominal pain may indicate underlying issues that need attention. Choosing 'All of the above' is the correct answer as all these symptoms are important to report for proper evaluation and management.
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