ATI RN
ATI RN Pharmacology Online Practice 2019 A Questions
Question 1 of 5
The patient has been prescribed oxymetazoline (Afrin). What medication information should the nurse provide?
Correct Answer: D
Rationale: Oxymetazoline acts fast; adherence prevents rebound . Days is wrong. D ensures safe use, making it key.
Question 2 of 5
A prenatal patient tells the nurse that she is not taking vitamins because she heard that vitamins may cause damage to the fetus if she becomes pregnant. What is the nurse's best response?
Correct Answer: C
Rationale: While vitamins are generally beneficial during pregnancy, excessive doses (megadoses) can be harmful, especially in the first trimester. The nurse should emphasize the importance of taking vitamins at recommended levels and avoiding excessive supplementation. Taking extra vitamins (B) is not advised, and doses above the RDA (D) should be avoided unless prescribed.
Question 3 of 5
The data shown in the table below concern the effects of drugs on transmitter function in the CNS. Which one of the drugs is most likely to alleviate extrapyramidal dysfunction caused by typical antipsychotics?
Correct Answer: C
Rationale: Typical antipsychotics block dopamine D2 receptors, causing extrapyramidal symptoms (EPS) like parkinsonism due to dopamine-acetylcholine imbalance in the basal ganglia. Drugs alleviating EPS often restore this balance. Drug A strongly activates dopamine receptors, mimicking dopamine and potentially countering the blockade, but excessive activation risks psychosis. Drug B moderately boosts dopamine and GABA, offering some benefit but less specificity. Drug C potently blocks muscarinic acetylcholine receptors, reducing cholinergic overactivity that emerges from dopamine depletion, a well-established approach (e.g., benztropine) for EPS relief without worsening psychosis. Drug D enhances GABA, unrelated to EPS mechanisms. Drug E mildly activates dopamine and GABA, insufficient for robust relief. Blocking muscarinic receptors directly addresses the cholinergic excess, making it the most effective and clinically validated strategy for EPS management.
Question 4 of 5
A client with anxiety is prescribed buspirone (Buspar). Which statement by the client indicates effective teaching?
Correct Answer: B
Rationale: Buspirone, an anxiolytic, requires 2-4 weeks for effect and is dosed thrice daily , showing understanding. Immediate relief is false'it's not a benzo. Alcohol worsens anxiety. It's non-sedating . Thrice-daily dosing aligns with buspirone's steady-state need, key in anxiety where consistency matters, making B the correct statement.
Question 5 of 5
Which of the following is an amide type of local anesthetics:
Correct Answer: B
Rationale: Articaine is an amide type of local anesthetic. Local anesthetics can be classified into two main categories: esters and amides. Articaine belongs to the amide group of local anesthetics, along with lidocaine, bupivacaine, and others. Amide local anesthetics tend to have longer duration of action and are less likely to cause allergic reactions compared to ester local anesthetics. In the given choices, Procaine, Amethocaine, and Benzocaine are ester-type local anesthetics, while Cocaine is a unique example of a local anesthetic with mixed properties.