ATI RN
ATI Intro to Pharmacology Quizlet Questions
Question 1 of 5
A 24-year-old man is admitted for an emergent appendectomy. While in the operating room, the anesthesiologist finds that he must use a much higher than expected anesthetic dose to anesthetize this patient. After the surgery, the patient admits to barbiturate abuse. What is the correct term for the fact that his history of barbiturate abuse led to a greater anesthetic requirement?
Correct Answer: C
Rationale: Barbiturate abuse increases anesthetic need due to cross-tolerance . Chronic use induces enzymes and receptor changes, reducing anesthetic efficacy. Addiction , dependence , and cross-dependence don't explain dosing. Tolerance (E) is drug-specific. Cross-tolerance fits this scenario.
Question 2 of 5
The nurse administers atenolol (Tenormin) to a client with hypertension. Which finding would prompt the nurse to hold the dose and notify the physician?
Correct Answer: B
Rationale: Atenolol, a beta-blocker, lowers blood pressure and heart rate by blocking sympathetic stimulation. A heart rate of 52 bpm is bradycardic (below 60 bpm), a threshold for holding beta-blockers due to risk of inadequate perfusion, especially in hypertension where cardiac output matters. Holding and notifying the physician prevents harm, allowing reassessment. BP of 130/80 is controlled, not urgent. Respiratory rate of 18 and temperature of 98.6°F are normal. Atenolol's selectivity for beta-1 receptors makes bradycardia a key adverse effect, requiring vigilance. This action aligns with nursing protocols for beta-blockers, prioritizing cardiovascular stability, making B the finding warranting immediate intervention.
Question 3 of 5
The physician has prescribed sertraline (Zoloft) for the patient who is anxious and depressed. The patient calls the nurse to report that he has experienced delayed ejaculation since being on this medication. What is the best response by the nurse?
Correct Answer: B
Rationale: Sertraline, an SSRI, often causes sexual side effects like delayed ejaculation-common, per patient data-but depression treatment outweighs this for now. Switching is an option, not immediate. Suicide risk from stopping is possible but not assumed. It rarely resolves alone-management varies. Prioritizing depression balances care, per guidelines.
Question 4 of 5
A 48-year-old woman with obsessive-compulsive disorder presents to her primary care physician for evaluation. She states that her symptoms have worsened during the last 6 months and desires treatment. She has begun on sertraline. Which of the following precautions must be exercised by the physician?
Correct Answer: D
Rationale: Sertraline, an SSRI, risks suicidal tendencies , especially early in treatment for OCD. Hepatic carcinoma , volume overload , and antibiotic potentiation aren't concerns. FDA warnings highlight this risk, necessitating monitoring in this worsening case.
Question 5 of 5
The nurse is preparing to transfuse a patient with a unit of packed red blood cells (PRBCs). Which patient would be best treated with this transfusion?
Correct Answer: B
Rationale: Packed red blood cells (PRBCs) are typically transfused to patients with severe anemia, where the oxygen-carrying capacity of the blood is significantly reduced. PRBCs are concentrated units of red blood cells that can quickly increase the blood's oxygen-carrying capacity. Patients with severe anemia may experience symptoms such as fatigue, weakness, shortness of breath, and pale skin. Transfusion of PRBCs helps to improve oxygen delivery to tissues and organs, alleviating these symptoms and improving the patient's overall well-being.