Pharmacokinetics and Pharmacodynamics

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As an advanced practice nurse assisting physicians in the diagnosis and treatment of disorders, it is important to not only understand the impact of disorders on the body, but also the impact of drug treatments on the body. The relationships between drugs and the body can be described by pharmacokinetics and pharmacodynamics.

Pharmacokinetics describes what the body does to the drug through absorption, distribution, metabolism, and excretion, whereas pharmacodynamics describes what the drug does to the body. When selecting drugs and determining dosages for patients, it is essential to consider individual patient factors that might impact the patient’s pharmacokinetic and pharamcodynamic processes.

These patient factors include genetics, gender, ethnicity, age, behavior (i.e., diet, nutrition, smoking, alcohol, illicit drug abuse), and/or pathophysiological changes due to disease. In this Discussion, you reflect on a case from your past clinical experiences and consider how a particular patient’s pharmacokinetic and pharmacodynamic processes altered his or her response to a drug.

To prepare:

· Review this week’s media presentation with Dr. Terry Buttaro, as well as Chapter 2 of the Arcangelo and Peterson text, and the Scott article in the Learning Resources. Consider the principles of pharmacokinetics and pharmacodynamics.

· Reflect on your experiences, observations, and/or clinical practices from the last five years. Select a case from the last five years that involves a patient whose individual differences in pharmacokinetic and pharmacodynamic factors altered his or her anticipated response to a drug. When referring to your patient, make sure to use a pseudonym or other false form of identification. This is to ensure the privacy and protection of the patient.

· Consider factors that might have influenced the patient’s pharmacokinetic and pharmacodynamic processes such as genetics (including pharmacogenetics), gender, ethnicity, age, behavior, and/or possible pathophysiological changes due to disease.

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· Think about a personalized plan of care based on these influencing factors and patient history in your case study.

With these thoughts in mind:

Post a description of the case you selected. Then, describe factors that might have influenced pharmacokinetic and pharmacodynamic processes of the patient from the case you selected. Finally, explain details of the personalized plan of care that you would develop based on influencing factors and patient history in your case.

– This work should have Introduction and conclusion

– This work should have at 3 to 5current references (Year 2012 and up)

– Use at least 2 references from class Learning Resources

The following Resources are not acceptable:

1. Wikipedia

2. Cdc.gov- nonhealthcare professionals section

3. Webmd.com

4. Mayoclinic.com Pharmacokinetics and Pharmacodynamics

LEARNING RESOURCES

**Arcangelo, V. P., Peterson, A. M., Wilbur, V., & Reinhold, J. A. (Eds.). (2017). Pharmacotherapeutics for advanced practice: A practical approach (4th ed.). Ambler, PA: Lippincott Williams & Wilkins.

  • Chapter 2, “Pharmacokinetic      Basis of Therapeutics and Pharmacodynamic Principles” (pp. 17-31)
         This chapter examines concepts related to pharmacokinetics and      pharmacodynamics. It also explores patient factors that health care      providers consider when prescribing drug therapy to patients.
  • Chapter 3, “Impact of Drug      Interactions and Adverse Events on Therapeutics” (pp. 33-51)
         This chapter explains drug-drug, drug-food, drug-herb, and drug-disease      interactions. It also reviews patient factors that influence drug      interactions and then covers adverse drug reactions.
  • Chapter 4, “Principles of      Pharmacotherapy in Pediatrics” (pp. 53-63)
         This chapter explores concepts relating to drug selection, administration,      and interaction for pediatric patients. It also compares age-related      pharmacokinetic differences in children and adults.
  • Chapter 6, “Principles of Pharmacotherapy in      Elderly Patients” (pp. 73-89)
         This chapter describes issues and factors that affect drug therapy for      elderly patients. It then explores concepts relating to drug selection,      administration, and management for elderly patients.

**Scott, S. A. (2011). Personalizing medicine with clinical pharmacogenetics. Genetics in Medicine, 13(12), 987–995. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3290900/

This article examines pharmacogenetic testing in relation to personalized drug therapy plans and explores evidence-based guidelines and recommendations on pharmacogenetic testing.

**Drugs.com. (2012). Retrieved August 22, 2012, from http://www.drugs.com/ 

This website presents a comprehensive review of prescription and over-the-counter drugs including information on common uses and potential side effects. It also provides updates relating to new drugs on the market, support from health professionals, and a drug-drug interactions checker.

**Haymarket Media, Inc. (2012). Retrieved from http://www.empr.com/

**Institute for Safe Medication Practices. (2012). Retrieved from http://www.ismp.org/

**WebMD. (2012). Medscape. Retrieved from http://www.medscape.com/ Pharmacokinetics and Pharmacodynamics