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In this episode we return to turning the open educational nursing resource for nursing pharmacology into audio, we'll start with the 1st edition antimicrobials then move on to the new second edition with the next topic.

Chapter 3.3 Administration Considerations Summary

Chapter 3.3 of the Nursing Pharmacology guide covers key considerations when administering antimicrobial drugs. Topics include drug half-life, the impact of patient age and organ function on dosing, dose/time dependency, administration routes (oral, intravenous, etc.), and the significance of drug interactions. It explains how liver and renal function can affect drug metabolism and excretion, emphasizing the need for tailored doses. Synergistic and antagonistic drug interactions are also explored, with examples like Bactrim for synergy and antacids reducing antibiotic effectiveness.

Multiple Choice Questions

1. What does a drug's half-life refer to? a) The time it takes for a drug to start working b) The time it takes for 50% of a drug to be eliminated c) The amount of drug absorbed in 24 hours d) The period a drug remains active in the body
2. Why is renal function important in antimicrobial dosing? a) It affects the speed of drug absorption b) It determines the length of the treatment c) Poor renal function can lead to drug toxicity d) It impacts the immune response
3. Which type of drug interaction is beneficial in antimicrobial therapy? a) Antagonistic b) Synergistic c) Time-dependent d) Dose-dependent
4. What is the goal of time-dependent antimicrobials like penicillin? a) Maximizing exposure duration b) Delivering a high dose quickly c) Reducing side effects d) Minimizing drug resistance
5. What can negatively impact the absorption of antibacterials in the stomach? a) High salt intake b) Antacids c) Fluids d) Dairy products

Answer Key for Multiple Choice Questions

Question 1: b) The time it takes for 50% of a drug to be eliminated

Question 2: c) Poor renal function can lead to drug toxicity

Question 3: b) Synergistic

Question 4: a) Maximizing exposure duration

Question 5: b) Antacids