ATI RN
ATI Pharmacology Study Guide PDF Questions
Question 1 of 5
Potential causes for respiratory alkalosis include
Correct Answer: D
Rationale: Respiratory alkalosis occurs when carbon dioxide (CO2) is excessively exhaled, raising blood pH. Hyperventilation is a primary cause, as rapid breathing reduces CO2, a respiratory acid, leading to alkalosis—common in anxiety, fever, or hypoxia. Hypotension or hypertension affects circulation, not ventilation rate directly, and aren't causes. Hypoventilation retains CO2, causing acidosis, not alkalosis. The nurse identifies hyperventilation as the physiological trigger, aligning with acid-base balance principles, making choice D the accurate cause in this context.
Question 2 of 5
The patient receives aspirin. The nurse assesses an adverse effect to this drug when the patient makes which response?
Correct Answer: A
Rationale: Aspirin's antiplatelet effect risks GI bleeding, causing dark stools , a serious adverse effect needing urgent assessment. Nasal stuffiness , photophobia , and nocturia aren't typical. A signals potential hemorrhage, making it the correct adverse effect.
Question 3 of 5
A client is prescribed ciprofloxacin (Cipro) for a urinary tract infection. Which instruction should the nurse include?
Correct Answer: B
Rationale: Ciprofloxacin, a fluoroquinolone, treats UTIs but causes photosensitivity, risking severe sunburn. Avoiding sun exposure prevents this, a key instruction for safety. Milk reduces absorption via calcium binding, lowering efficacy. Taking it PRN risks incomplete treatment and resistance. Doubling doses courts toxicity. Sun avoidance aligns with ciprofloxacin's side effect profile, critical for outpatient adherence where sun exposure is common. This teaching prevents avoidable harm, distinguishing it from administration errors, making B the essential instruction.
Question 4 of 5
Hemostatic agent that reduces bleeding by local vasoconstriction:
Correct Answer: B
Rationale: Styptics are hemostatic agents that work by causing local vasoconstriction, which helps reduce bleeding. This vasoconstriction is achieved through their astringent properties, which constrict blood vessels and promote blood clotting at the site of application. Sympathomimetics, while also working to constrict blood vessels, do so systemically and are not specifically used for local hemostasis. Mechanical agents, such as pressure or sutures, physically help to stop bleeding but do not induce vasoconstriction. Thrombin is an enzyme involved in the clotting cascade but does not directly cause vasoconstriction.
Question 5 of 5
What is the priority outcome for a 6-year-old patient who had been started on methylphenidate (Ritalin)?
Correct Answer: D
Rationale: Methylphenidate for ADHD risks appetite suppression-maintaining weight is priority, per side effect monitoring, as growth lags can occur. Avoiding fights, chores, and play improve but aren't immediate risks. Weight reflects health impact, key in kids.