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. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?
- A. Antiplatelets
- B. Beta-adrenergic blockers
- C. ACE inhibitors
- D. Calcium channel blockers
Correct answer: B
Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.
3. A client with a prescription for Vasopressin to treat Diabetes Insipidus is being taught by a healthcare professional. Which of the following client statements indicates an understanding of the teaching?
- A. I will reduce my sodium intake.
- B. I should increase my water intake.
- C. I will notify my doctor if I develop chest pain.
- D. I should take this medication with food.
Correct answer: C
Rationale: The correct answer is C because Vasopressin can cause vasoconstriction, potentially leading to chest pain. It is crucial for the client to inform their healthcare provider immediately if they experience chest pain while on Vasopressin therapy to address any potential cardiovascular complications promptly. Choices A, B, and D are incorrect. While maintaining adequate hydration is essential with Vasopressin therapy due to its antidiuretic effect, increasing water intake is not the most critical aspect to monitor. Reducing sodium intake may be beneficial in some cases but is not directly related to the potential side effects of Vasopressin. Taking the medication with food is not a specific instruction for Vasopressin administration.
4. What should you assess for in a patient who is on Valproate?
- A. Suicidal thoughts
- B. Monitor for seizures
- C. Bipolar disorder
- D. Migraines
Correct answer: A
Rationale: The correct answer is A: Suicidal thoughts. When a patient is prescribed Valproate, it is crucial to assess for suicidal thoughts as it is a serious side effect associated with this medication. Valproate has been linked to an increased risk of suicidal ideation and behavior, particularly in patients with epilepsy or bipolar disorder. Monitoring for signs of depression or changes in behavior is essential to ensure patient safety and well-being. Choices B, C, and D are incorrect because while monitoring for seizures, managing bipolar disorder, and treating migraines are also important considerations when a patient is on Valproate, assessing for suicidal thoughts takes priority due to the serious nature of this potential side effect.
5. A healthcare professional is educating a client about the adverse effects of Metformin. Which of the following adverse effects should the healthcare professional include?
- A. Lactic acidosis.
- B. Hypoglycemia.
- C. Hyperlipidemia.
- D. Weight gain.
Correct answer: A
Rationale: The correct answer is A: Lactic acidosis. Lactic acidosis is a rare but severe side effect of Metformin, particularly in individuals with renal or liver issues. It is crucial for clients taking Metformin to be aware of the symptoms of lactic acidosis, such as muscle pain, weakness, trouble breathing, stomach discomfort, and feeling cold. Choice B, hypoglycemia, is not a common adverse effect of Metformin but can occur when combined with other antidiabetic medications. Choice C, hyperlipidemia, is not a typical adverse effect of Metformin. Choice D, weight gain, is not associated with Metformin use; in fact, Metformin is often associated with weight loss or weight neutrality.
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