ATI RN
ATI Capstone Pharmacology Assessment 2 Quizlet Questions
Question 1 of 5
What is Nitroglycerin's Action?
Correct Answer: D
Rationale: Nitroglycerin is a medication commonly used in the treatment of angina pectoris (chest pain) and heart failure. Its primary action is to dilate the coronary arteries, which are the blood vessels that supply the heart muscle with oxygen and nutrients. By dilating these arteries, nitroglycerin helps to increase blood flow to the heart and reduce the workload on the heart muscle, thereby relieving chest pain and improving overall heart function. This vasodilatory effect of nitroglycerin also helps in reducing blood pressure and increasing oxygen supply to the heart. Therefore, the correct action of nitroglycerin is to dilate the coronary arteries.
Question 2 of 5
Action of anxiolytic agents:
Correct Answer: D
Rationale: Anxiolytic agents are drugs that help relieve anxiety. Benzodiazepines are a class of drugs commonly used as anxiolytics due to their ability to enhance the effects of gamma-aminobutyric acid (GABA), a neurotransmitter that inhibits brain activity. By increasing the inhibitory actions of GABA, benzodiazepines can produce calming and sedative effects, making them effective in treating anxiety disorders. Morphine, promethazine, atropine sulfate, and hyoscine are not typically used as anxiolytic agents.
Question 3 of 5
Drugs may be excreted by any route in the body, except:
Correct Answer: D
Rationale: Saliva is not a common route for drug excretion. Drugs are primarily excreted from the body through various routes such as the kidneys (urine), lungs (exhaled air), gastrointestinal tract (feces), and tears (through the eyes). Saliva does not play a major role in drug excretion, as most drugs are not significantly eliminated through saliva.
Question 4 of 5
For which serious adverse effect should the nurse closely monitor a patient who is taking lincosamides?
Correct Answer: D
Rationale: Lincosamides, such as clindamycin, are associated with a high risk of Clostridium difficile-associated diarrhea (CDAD), a potentially life-threatening condition. CDAD occurs due to the disruption of normal gut flora, allowing C. difficile to overgrow and produce toxins. Symptoms include severe diarrhea, abdominal pain, and fever. While lincosamides can rarely cause hepatotoxicity or ototoxicity, CDAD is the most common and serious adverse effect. Seizures are not typically associated with lincosamides. Early identification and treatment of CDAD are crucial to prevent complications like toxic megacolon or sepsis.
Question 5 of 5
A 5-year-old African American patient has been admitted to the pediatric intensive care unit with pheochromocytoma. The physician has ordered phentolamine. The nurse knows that the other indication for phentolamine is what?
Correct Answer: B
Rationale: Phentolamine (Regitine) is used for the prevention of cell death and tissue sloughing after extravasation of intravenous norepinephrine or dopamine, and severe hypertension reactions caused by manipulation of the pheochromocytoma before and during surgery; diagnosis of pheochromocytoma. Phentolamine would not be indicated for treatment of migraine headaches, life-threatening arrhythmias, or heart failure. The nurse should understand the indications for phentolamine to ensure safe and effective administration.