Complete the following sentence using the options in the drop down selection. _____ Is what the body does with the drug versus ____ which is what the drug does to the body.
Affinity
Efficacy
Biotransformation
Pharmacokinetics
Pharmacodynamics
Correct Answer : D,E
A) Affinity: Affinity refers to the strength of the interaction between a drug and its receptor. It does not describe the body's overall handling of the drug or the drug's effects on the body.
B) Efficacy: Efficacy describes the ability of a drug to produce a desired therapeutic effect. It pertains to the drug’s effectiveness once it interacts with its target but does not encompass the body's handling of the drug.
C) Biotransformation: Biotransformation is the process of drug metabolism, specifically how the body chemically alters a drug. While it is a part of pharmacokinetics, it does not cover the entire concept.
D) Pharmacokinetics: Pharmacokinetics is the term used to describe what the body does with the drug, including absorption, distribution, metabolism, and excretion. It encompasses the processes that determine the drug's concentration in the body over time.
E) Pharmacodynamics: Pharmacodynamics refers to what the drug does to the body, including the relationship between drug concentration and effect. It encompasses the mechanisms of action, including receptor interactions and therapeutic effects.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E"]
Explanation
A) Parenteral medications are avoided due to fragility of veins: While it is true that older adults may have fragile veins, this does not mean that parenteral medications are universally avoided. Parenteral medications are still used based on clinical needs, though careful consideration is given to the condition of the veins.
B) Older adults are at risk for drug toxicity due to accumulation in the body: This is correct. As people age, their liver and kidney functions often decline, leading to decreased metabolism and excretion of drugs. This can result in drug accumulation and an increased risk of toxicity.
C) The elderly population is susceptible to polypharmacy: This is correct. Older adults often take multiple medications for various chronic conditions, increasing the risk of drug interactions, side effects, and complications. Polypharmacy is a common issue in this population.
D) Medication metabolism tends to be faster in older adults: This is incorrect. Medication metabolism generally slows down in older adults due to decreased liver function. Slower metabolism can lead to drug accumulation and increased risk of adverse effects.
E) Older adults have delayed absorption: This is correct. Although the rate of absorption may not be significantly affected, the overall absorption can be altered due to changes in gastrointestinal function and blood flow in older adults.
Correct Answer is A
Explanation
A. Wait for at least another 30 minutes before calling to have the level drawn:
For oral medications, peak drug levels are typically drawn 1 to 2 hours after administration, depending on the medication's pharmacokinetics. Since the client took the medication only 30 minutes ago, it is premature to draw the level now. Waiting an additional 30 minutes would align with the typical peak times for oral medications, ensuring that the drug level reflects its peak concentration.
B. Schedule the level to be drawn in 8 hours:
Drawing the peak level 8 hours after administration would likely be too late, as most oral medications reach their peak concentration within 1 to 2 hours. Scheduling the level for 8 hours later may result in an inaccurate measurement of the peak drug level, leading to potentially misleading clinical information.
C. Call the lab to have the medication level drawn immediately:
Drawing the level immediately after 30 minutes may not provide an accurate representation of the peak drug level. Oral medications generally reach peak levels later, and an early draw could result in a falsely low measurement that does not reflect the drug's maximum concentration.
D. Arrange for the level to be drawn tomorrow since the peak time has passed:
The peak time has not passed, as the medication was only administered 30 minutes ago. Drawing the level tomorrow would be far too late to assess the peak concentration accurately, which is essential for evaluating the effectiveness and safety of the medication.
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