ATI RN
Pharmacology of Drugs Acting on Cardiovascular System Slideshare Questions
Question 1 of 5
A patient has disorganized thinking associated with schizophreni Neuroimaging would most likely show dysfunction in which part of the brain?
Correct Answer: B
Rationale: The correct answer is B: Frontal lobe. In schizophrenia, disorganized thinking is often linked to dysfunction in the frontal lobe. This area of the brain is responsible for cognitive functions like decision-making, problem-solving, and reasoning, which can be impaired in schizophrenia. The hippocampus (A) is involved in memory formation, not specifically related to disorganized thinking in schizophrenia. The cerebellum (C) is responsible for coordination and balance, not cognitive functions. The brainstem (D) is crucial for basic life functions like breathing and heart rate, not associated with disorganized thinking in schizophrenia.
Question 2 of 5
A 78-year-old patient is in the recovery room after having a lengthy surgery on his hip. As he is gradually awakening, he requests pain medication. Within 10 minutes after receiving a dose of morphine sulfate, he is very lethargic and his respirations are shallow, with a rate of 7 per minute. The nurse prepares for which priority action at this time?
Correct Answer: C
Rationale: The correct answer is C: Administration of naloxone (Narcan). Naloxone is an opioid antagonist that can reverse the effects of opioids such as morphine, particularly in cases of opioid overdose leading to respiratory depression. In this scenario, the patient is showing signs of opioid toxicity, such as shallow respirations, which can progress to respiratory arrest. Administering naloxone is the priority to reverse the opioid effects and restore normal respiratory function. This intervention takes precedence over other actions such as pain assessment (choice A), intubation (choice B), or close observation for tolerance (choice D) because the patient's safety and well-being are at immediate risk due to respiratory depression.
Question 3 of 5
The nurse is reviewing medications used for depression. Which of these statements is a reason that selective serotonin reuptake inhibitors (SSRIs) are more widely prescribed today than tricyclic antidepressants?
Correct Answer: C
Rationale: The correct answer is C: Tricyclic antidepressants cause serious cardiac dysrhythmias if an overdose occurs. Tricyclic antidepressants have a narrow therapeutic index, meaning that even a small overdose can lead to severe toxicity, including cardiac dysrhythmias that can be life-threatening. This risk of overdose toxicity is a significant concern with tricyclic antidepressants and contributes to their decreased use compared to SSRIs. A: SSRIs having fewer sexual side effects is not the primary reason for their wider use compared to tricyclic antidepressants. While this may be a consideration for some patients, it is not the main factor influencing prescribing patterns. B: Drug-food interactions are indeed a concern with tricyclic antidepressants, but it is not the primary reason why SSRIs are more widely prescribed today. While SSRIs may have a lower risk of drug-food interactions, it is not the main driving factor behind their increased use. D: While SSRIs may have
Question 4 of 5
The nurse is preparing to administer adenosine (Adenocard) to a patient who is experiencing an acute episode of paroxysmal supraventricular tachycardia. When giving this medication, which is important to remember?
Correct Answer: C
Rationale: The correct answer is C. After administering adenosine, asystole may occur for a few seconds due to its rapid action on the heart's conduction system. Here's the rationale: 1. Adenosine works by slowing down conduction through the AV node, interrupting reentry pathways causing tachycardia. 2. This brief pause in electrical activity can cause a temporary stop in the heart's pumping action, resulting in asystole. 3. Asystole is expected and normal after adenosine administration, as it helps reset the heart's electrical activity and may terminate the tachycardia. In contrast, options A and D are incorrect because adenosine has a rapid onset of action within seconds and a very short half-life of less than 10 seconds, leading to a quick duration of action. Option B is incorrect as adenosine should be given as a rapid IV push to ensure its effectiveness.
Question 5 of 5
A patient asks the nurse about the uses of echinacea. Which use will the nurse include in the response?
Correct Answer: B
Rationale: The correct answer is B: Boosting the immune system. Echinacea is commonly used for its immune-boosting properties due to its ability to stimulate the immune system. It can help the body fight off infections and illnesses. Rationale: 1. Echinacea has been traditionally used for its immune-enhancing effects. 2. Research studies have shown that echinacea can increase the production of white blood cells, which are crucial for fighting infections. 3. Echinacea is often recommended to shorten the duration of colds and flu by supporting the immune response. 4. Memory enhancement (A), improving mood (C), and promoting relaxation (D) are not commonly associated with echinacea use based on scientific evidence.