ATI RN
First Aid Cardiovascular Drugs Quizlet Questions
Question 1 of 5
A ganglioblocking drug for hypertension treatment is:
Correct Answer: C
Rationale: The correct answer is C: Trimethaphan. Trimethaphan is a ganglioblocking drug that acts on the autonomic nervous system by blocking nicotinic receptors in ganglia, reducing sympathetic outflow and lowering blood pressure. Hydralazine (A) is a direct vasodilator, Tubocurarine (B) is a neuromuscular blocker, and Metoprolol (D) is a beta blocker. These drugs do not act specifically on ganglia to lower blood pressure like Trimethaphan does.
Question 2 of 5
Correct statements about crystalline zinc (regular) insulin include all of the following EXCEPT:
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
Which of the following glucocorticoids have two fluoride atoms in its chemical structure?
Correct Answer: D
Rationale: The correct answer is D: Triamcinolone. Triamcinolone has two fluoride atoms in its chemical structure, making it a fluorinated glucocorticoid. Prednisolone (A) does not contain any fluoride atoms. Dexamethasone (B) and Fluocinolone (C) each have only one fluoride atom in their chemical structure. Therefore, Triamcinolone is the only option with two fluoride atoms, making it the correct answer.
Question 4 of 5
Which of histamine H1 antagonists is noted for the ulcerogenic effect?
Correct Answer: D
Rationale: The correct answer is D, Dimedrol. Dimedrol, also known as diphenhydramine, is noted for its ulcerogenic effect due to its anticholinergic properties, which can inhibit mucosal protection in the stomach. Diazoline (A), Loratadine (B), and Suprastine (C) are not associated with ulcerogenic effects as they do not possess strong anticholinergic properties like Dimedrol. Diazoline is a histamine H1 antagonist used for allergies, Loratadine is a non-sedating antihistamine, and Suprastine is an antihistamine with antiallergic effects.
Question 5 of 5
Night blindness (Hemeralopia, Nyctalopia) is
Correct Answer: C
Rationale: The correct answer is C because night blindness (Hemeralopia, Nyctalopia) is a condition where vision is normal in daylight but weak or lost in dim light due to vitamin A deficiency. Vitamin A is essential for the conversion of light into electrical signals in the retina, crucial for night vision. Choice A refers to extreme dryness of the conjunctiva, not night blindness. Choice B describes xerophthalmia, a condition associated with severe vitamin A deficiency leading to corneal issues, not night blindness. Therefore, the correct answer is C as it accurately defines night blindness due to vitamin A deficiency.