ATI RN
Intro to Pharmacology ATI Quizlet Questions
Question 1 of 5
Which of the following is defined as the least stimulus intensity at which a subject perceives pain?
Correct Answer: A
Rationale: The pain threshold is defined as the least stimulus intensity at which a subject perceives pain. It represents the point at which a person first acknowledges experiencing pain. Pain threshold varies among individuals and can be influenced by various factors such as genetics, emotional state, culture, and past experiences with pain. It is an important concept in understanding an individual's sensitivity to pain and can be different from their pain tolerance level, which refers to the maximum level of pain a person is willing to endure. Analgesia involves the relief of pain, nociception is the body's physiological response to noxious stimuli, and polymodal refers to nerve fibers that respond to multiple types of stimuli.
Question 2 of 5
A patient is taking Digoxin to slow his heart rate down. The nurse suggests that he take his oral medication:
Correct Answer: A
Rationale: The nurse suggests that the patient takes his Digoxin medication when awakening because it is best absorbed when taken on an empty stomach. Taking Digoxin with meals can decrease its absorption, reducing its effectiveness. Therefore, to ensure optimal absorption and effectiveness of Digoxin in slowing down the heart rate, it is recommended to take it when awakening on an empty stomach.
Question 3 of 5
Absorption, distribution, metabolism and excretion is the study of herdrugs':
Correct Answer: B
Rationale: Pharmacokinetics is the study of how drugs are absorbed, distributed, metabolized, and excreted by the body. These processes determine the concentration of a drug at its site of action and contribute to understanding the drug's effectiveness and potential side effects. Therefore, absorption, distribution, metabolism, and excretion are key components of pharmacokinetics. Pharmacodynamics (Choice A) refers to the study of the physiological effects of drugs and their mechanisms of action, which is different from the processes involved in drug movement through the body. Therapeutic action (Choice C) refers to the desired effects of a drug in treating a specific condition, rather than the processes involved in drug processing in the body. Pharmaceutical preparation (Choice D) is related to the formulation and development of drugs before their administration, not to the processes within the body. Toxic effect (Choice E) refers to the harmful effects of drugs, which can result from various factors including pharmacokin
Question 4 of 5
The nurse is reviewing the client's history who is about to take Methotrexate. Which of the following drugs can be safely administered together with methotrexate?
Correct Answer: B
Rationale: Folic acid supplementation is recommended for patients on methotrexate to reduce the risk of side effects such as mucositis and myelosuppression. Tetracycline, sulfamethoxazole, and phenytoin can interact with methotrexate, increasing its toxicity. Folic acid helps mitigate these adverse effects without interfering with the drug's efficacy.
Question 5 of 5
A patient with a known history of angina was walking his dog and developed chest pain. The patient immediately stops walking and sits down. He continues to experience chest pain when sitting down. When should he call 911?
Correct Answer: A
Rationale: The patient should call 911 immediately. Angina is characterized by chest pain or discomfort that occurs when the heart muscle does not receive enough oxygen-rich blood. The fact that the patient continued to experience chest pain even while sitting down is concerning and suggests that he may be having an acute coronary event, such as a heart attack. In this situation, prompt medical attention is crucial to assess and manage the situation appropriately. It is important not to delay seeking emergency help when experiencing chest pain, especially for a patient with a known history of angina.