NURS 301: Pharmacotherapeutics and Medicines Management – Assessment Task 2: Clinical Case Analysis

Assessment Overview

Course: NURS 301 – Pharmacotherapeutics in Nursing Practice (Bachelor of Nursing)

Assessment Type: Clinical Case Study / Pharmacological Analysis

Weighting: 40% of Final Grade

Length: 2,000 words (+/- 10%)

Submission Format: Word Document (.docx) via Turnitin

Due Date: Monday, Week 9, 09:00 AM

Context

Safe medication administration requires more than simply following the “Five Rights.” It demands a sophisticated understanding of pharmacokinetics (what the body does to the drug) and pharmacodynamics (what the drug does to the body). As a registered nurse, you will frequently encounter patients with complex comorbidities managing polypharmacy. Your ability to predict adverse drug reactions (ADRs), interpret altered metabolic processes in aging or compromised systems, and educate patients on medication adherence is critical for patient safety.

Task Description

Review the patient case scenario provided in the Module 4 resources (“Case Study: Mrs. Henderson – Heart Failure and Polypharmacy”). You are required to write a detailed pharmacological analysis of her current medication regimen. Your paper must address the following three components:

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1. Pharmacokinetic Profile

Select two major drug classes from the patient’s chart (e.g., ACE Inhibitors and Loop Diuretics). Analyze the pharmacokinetics of these specific drugs in the context of the patient’s age and renal function. You must discuss:

• Absorption: How oral bioavailability might be affected by her gastric pH.
• Distribution: The impact of her low albumin levels on protein binding.
• Metabolism: The role of Cytochrome P450 enzymes and potential hepatic changes.
• Excretion: How her reduced Glomerular Filtration Rate (GFR) influences drug half-life.

2. Pharmacodynamic Interactions & Adverse Effects

Identify potential drug-drug interactions in the patient’s regimen. Explain the mechanism of action for the interacting drugs at the cellular level (e.g., receptor agonist/antagonist activity).

Discuss specific signs and symptoms of toxicity you would monitor for in a clinical setting. For example, if the patient is on Digoxin and Furosemide, how does hypokalemia alter the risk profile?

3. Nursing Management and Education

Develop a nursing care plan focused on medicines management. This must include:

• Monitoring: Specific laboratory values (e.g., INR, electrolytes, creatinine) required to assess therapeutic levels.
• Education: Strategies to improve adherence and help the patient recognize “red flag” symptoms.
• Deprescribing: Based on evidence, suggest one medication that could potentially be reviewed or ceased by the medical team.

Requirements & Formatting

• Word Count: 2,000 words (excluding reference list).
• Resources: You must use the Australian Medicines Handbook (AMH), MIMS, or the British National Formulary (BNF) alongside peer-reviewed journals.
• Referencing: APA 7th Edition. Minimum of 10 sources published between 2019-2026.
• Terminology: Use correct pharmacological terminology (e.g., first-pass effect, therapeutic index, bioavailability).

Grading Rubric / Marking Criteria

The co-administration of ACE inhibitors and non-steroidal anti-inflammatory drugs (NSAIDs) in an elderly patient presents a significant risk of acute kidney injury, often described as the “triple whammy” when diuretics are also present. Physiologically, prostaglandins play a crucial role in maintaining renal afferent arteriolar vasodilation, ensuring adequate glomerular perfusion. NSAIDs inhibit cyclooxygenase (COX) enzymes, thereby reducing prostaglandin synthesis and causing vasoconstriction of the afferent arteriole. Concurrently, ACE inhibitors prevent the constriction of the efferent arteriole by blocking the conversion of Angiotensin I to Angiotensin II. This combined effect drastically reduces intraglomerular pressure and the Glomerular Filtration Rate (GFR). In an elderly patient with pre-existing renal compromise, indicated by elevated serum creatinine, this interaction can precipitate renal failure. Therefore, nurses must prioritize monitoring fluid status and renal function markers, advocating for analgesic alternatives such as acetaminophen to preserve renal integrity. Bullock and Manias (2021) emphasize that vigilant monitoring of potassium levels is also essential in this context to prevent life-threatening hyperkalemia.

Learning Materials/Resources (Harvard Format)

• Bryant, B. and Knights, K. (2023) Pharmacology for Health Professionals. 6th edn. Chatswood, NSW: Elsevier Australia. Available at: https://shop.elsevier.com/books/pharmacology-for-health-professionals
• Bullock, S. and Manias, E. (2021) Fundamentals of Pharmacology. 9th edn. Frenchs Forest, NSW: Pearson Australia. Available at: https://www.pearson.com/en-au/subject-catalog/p/fundamentals-of-pharmacology
• McKenna, L. and Mirkov, S. (2022) Karch’s Focus on Nursing Pharmacology. 9th edn. Philadelphia: Wolters Kluwer. Available at: https://shop.lww.com/Karch-s-Focus-on-Nursing-Pharmacology
• Neal, M.J. (2020) Medical Pharmacology at a Glance. 9th edn. Oxford: Wiley-Blackwell. Available at: https://www.wiley.com/en-us/Medical+Pharmacology+at+a+Glance