Medication Management for Elderly Patient with Multiple Comorbidities

QUESTION

Yvonne Chen is an 86 year old who has been bought into the emergency department by her daughter. Mrs Chen normally lives alone, and was recently released from hospital following admission for exacerbation of heart failure. Her daughter, Jane is concerned about her mother’s generalised weakness, aches and pains, intermittent shortness of breath and poor appetite. Her daughter believes she has lost about 10 kg since her release from hospital. Mrs Chen occasionally complains of nausea, and has vomited once or twice in the last 24 hours. On assessment in the ED, Mrs Chen was alert and orientated, her respiratory rate was 22 with oxygen saturation of 93% on room air, her heart rate was 39 with an irregular rhythm and a systolic murmur (an ECG shows atrial fibrillation, but no acute changes), her blood pressure was 139/46, her temperature was 37.5. Yvonne’s past medical history includes: end stage congestive heart failure, hypertension, atrial fibrillation, aortic stenosis, age-related macular degeneration, chronic renal insufficiency, dysphagia, and a previous right total hip replacement.

Yvonne’s current medications include

Amiodarone 200 mg oral daily

Warfarin 2.5mg oral every evening

Digoxin 125mcg oral daily

Esomeprazole 20mg oral daily before breakfast

Carvedilol 3.125mg oral twice daily

Furosemide 20mg oral daily

Potassium chloride 600mg oral daily

Following admission her blood results reveal INR 6.5, potassium of 5.2 mmol/L, digoxin level of 2.4 ng/mL, creatinine level of 2.2 mg/dL and a Blood Urea Nitrogen (BUN) of 48 mg/dL.

Given your concerns above – what changes do you think might need to be made to her current medications? 

ANSWER

Medication Management for Elderly Patient with Multiple Comorbidities

Introduction

This essay examines the case of Yvonne Chen, an 86-year-old with a complex medical history and recent exacerbation of heart failure. It highlights her presenting symptoms, medical history, and current medication regimen. The focus will be on the evaluation of her medications, potential interactions, and necessary adjustments to her treatment plan.

Patient Assessment

Yvonne Chen’s symptoms include generalized weakness, aches, pains, intermittent shortness of breath, poor appetite, weight loss, nausea, and vomiting. Her medical history is marked by end-stage congestive heart failure, hypertension, atrial fibrillation, aortic stenosis, age-related macular degeneration, chronic renal insufficiency, and dysphagia.

Current Medications

Amiodarone 200 mg oral daily: Used to manage atrial fibrillation.
Warfarin 2.5 mg oral every evening: Anticoagulant therapy for atrial fibrillation.
Digoxin 125 mcg oral daily: To control heart rate in atrial fibrillation.
Esomeprazole 20 mg oral daily before breakfast: Acid reflux management.
Carvedilol 3.125 mg oral twice daily: Beta-blocker for heart failure.
Furosemide 20 mg oral daily: Diuretic for fluid management.
Potassium chloride 600 mg oral daily; To counteract potassium loss due to diuretics.

Medication Changes

Warfarin Dose Adjustment: Yvonne’s INR of 6.5 indicates an elevated risk of bleeding due to excessive anticoagulation. Her warfarin dose should be reduced, and her INR closely monitored.
Digoxin Monitoring:A digoxin level of 2.4 ng/mL is above the therapeutic range, putting Yvonne at risk of toxicity. Her digoxin dose should be reduced, and levels rechecked.
Potassium Monitoring and Adjustment: With a potassium level of 5.2 mmol/L, close monitoring and potential potassium-sparing diuretics may be considered to prevent hyperkalemia.
Assessment of Esomeprazole: Given Yvonne’s nausea, vomiting, and decreased appetite, the need for esomeprazole should be reevaluated. Adjustments in the dosage or alternative options might be explored.
Creatinine and BUN Levels:The elevated creatinine and BUN levels suggest renal impairment. Medication doses requiring renal adjustment, like furosemide, need review.

Conclusion

Yvonne Chen’s complex medical history and symptoms necessitate a careful review of her medication regimen. Changes to her medications are vital to ensure her safety and optimal management of her conditions. Adjustments, including dose reductions, discontinuation, and alternative therapies, will help prevent potential adverse effects and drug interactions. Collaborative efforts among healthcare professionals are essential to ensure Yvonne’s well-being and enhance her overall quality of life.