ATI RN
ATI Pharmacology Assessment 2 Questions
Question 1 of 5
Which of the following antibacterials is most suitable for treatment of a lower urinary tract infection in a 28-year-old woman who is 10 weeks pregnant?
Correct Answer: A
Rationale: UTI in pregnancy needs safe, effective antibiotics. Amoxicillin, a penicillin, is safe (category B), effective against common pathogens (e.g., E. coli), and suitable in early pregnancy. Trimethoprim risks folate antagonism, avoided in first trimester. Tetracycline causes fetal bone/teeth damage, contraindicated. Erythromycin and flucloxacillin are less targeted for UTI. Amoxicillin's safety and efficacy make it ideal, protecting mother and fetus.
Question 2 of 5
A 29-year-old man with recurrent allergic rhinitis presents to his primary care physician for evaluation. He states that his symptoms are more problematic lately and desires treatment. He has begun on fexofenadine. Which of the following adverse reactions is possible in this patient?
Correct Answer: C
Rationale: Fexofenadine, a non-sedating antihistamine, may cause headache , a common side effect. Anxiety , cough , otitis , and respiratory infection (E) are less frequent. Its minimal CNS penetration suits rhinitis, but headache requires awareness.
Question 3 of 5
A drug has been prescribed to decrease the effects of an endogenous chemical. The nurse would place this drug in which category?
Correct Answer: C
Rationale: Antagonists block endogenous chemicals' effects (e.g., beta-blockers vs. adrenaline), reducing activity. Agonists mimic, partial agonists partially activate, and agonist-antagonists mix effects. Decreasing an endogenous effect fits antagonists, a pharmacodynamic classification.
Question 4 of 5
The client says to the nurse, 'My wife and I take the same drug, but we have different side effects. Are we doing something wrong?' What is the best response by the nurse?
Correct Answer: A
Rationale: Sex differences affect drug metabolism (e.g., liver enzymes, body fat), leading to varied side effects, a normal pharmacodynamic variation, reassuring the client they're not at fault. Checking the drug delays a clear answer. Generic vs. brand typically doesn't alter side effects-bioequivalence is required. Uncertainty muddies education. Sex-based differences offer a concise, accurate explanation, normalizing their experience and enhancing understanding.
Question 5 of 5
A nurse is giving a patient a loading dose of 1 mg of an antiarrhythmic drug to treat atrial flutters. Which of the following is most likely the drug being administered?
Correct Answer: A
Rationale: Digoxin is commonly used to treat atrial flutter and atrial fibrillation by helping to control the heart rate. A loading dose may be given initially to reach therapeutic levels quickly. This medication acts by increasing the force of the heart's contractions and slowing down the heart rate. Propranolol (Choice B) is a beta-blocker used to treat various heart conditions, but it is not typically used for atrial arrhythmias like atrial flutter. Ibuprofen (Choice C) is a nonsteroidal anti-inflammatory drug used for pain and inflammation, not for cardiac arrhythmias. Lithium (Choice D) is a mood-stabilizing medication often used for bipolar disorder and is not indicated for atrial flutter treatment.