Longitudinal Improvement in Renal Function Parameters

• August 26, 2026
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CLINICAL CASE STUDY

Longitudinal Improvement in Renal Function Parameters

A serial laboratory assessment of advanced renal dysfunction in a 79-year-old male

Dr Sumit Garg M.D.(Homoeopathy)

Abstract

Background: Advanced renal dysfunction is monitored through serial measurements of serum creatinine, estimated glomerular filtration rate (eGFR), urea, and associated biochemical parameters. Case Presentation: Mr. Subhash Chand Garg, a 79-year-old male, underwent serial renal-function assessment from May to August 2026. The initial documented assessment showed creatinine 5.07 mg/dL, eGFR 11 mL/min/1.73 m², and urea 123.80 mg/dL, with the laboratory reporting G5 renal function. Results: By 09 August 2026, serum creatinine had declined to 3.67 mg/dL, eGFR had increased to 16 mL/min/1.73 m², and urea had declined to 86.30 mg/dL. The reported GFR category changed from G5 to G4. Conclusion: The serial laboratory record documents a substantial biochemical improvement during the observation period. Continued longitudinal monitoring is required because significant renal impairment remains present.

Reporting Note: The case is based on serial laboratory findings supplied for the patient. Interpretation is limited to the documented laboratory data.

1. Introduction

Chronic kidney dysfunction is characterized by reduced renal filtration capacity and is clinically followed through
serum creatinine, estimated GFR, urea, electrolyte balance and other renal and metabolic markers. Serial
assessment is particularly useful because a single laboratory result represents only one point in time.
This case documents the longitudinal biochemical trajectory of a geriatric patient with advanced renal
dysfunction over a monitoring period from 28 May to 09 August 2026. The primary objective is to present the
documented changes in renal-function parameters in a formal clinical case-report format.

2. Patient Profile & Initial Assessment

The patient, Mr. Subhash Chand Garg, 79-year-old male, underwent the initial documented renal-function
assessment on 28 May 2026. The laboratory profile showed markedly impaired renal filtration, with serum
creatinine 5.07 mg/dL, estimated GFR 11 mL/min/1.73 m² and urea 123.80 mg/dL. The laboratory categorized
the GFR as G5.

Baseline Status | 28 May 2026

3. Intermediate Renal Assessments

09 June 2026: Creatinine declined to 4.60 mg/dL, eGFR increased to 12 mL/min/1.73 m² and urea was 117.60 mg/dL. The laboratory continued to classify the renal function as G5. 16 July 2026: Creatinine declined further to 4.11 mg/dL, eGFR increased to 14 mL/min/1.73 m² and urea declined to 75.50 mg/dL. Albumin was 3.76 g/dL and total protein 6.83 g/dL.

4. Post - Monitoring Status

09 August 2026

The latest supplied renal-function assessment demonstrated serum creatinine of 3.67 mg/dL, estimated GFR of 16 mL/min/1.73 m² and a laboratory-reported G4 category. Urea was 86.30 mg/dL, with BUN 40.30 mg/dL. Serum albumin remained relatively preserved at 3.98 g/dL.

5. Comparative Laboratory Results

6. QUANTITATIVE CHANGE

Serum Creatinine: 5.07 → 3.67 mg/dL, an approximate 27.6% reduction over the documented period.
Estimated GFR: 11 → 16 mL/min/1.73 m², an approximate 45.5% increase in the reported estimate.
Serum Urea: 123.80 → 86.30 mg/dL, an approximate 30.3% reduction from baseline.
GFR Category: The laboratory-reported category changed from G5 to G4 in the latest assessment.

7. CLINICAL DISCUSSION

The serial reports demonstrate a consistent downward trajectory in serum creatinine from 5.07 mg/dL on 28 May to 4.60 mg/dL on 09 June, 4.11 mg/dL on 16 July, and 3.67 mg/dL on 09 August 2026. The reported eGFR increased in parallel from 11 to 16 mL/min/1.73 m².

Serum urea also decreased markedly from 123.80 mg/dL at baseline to 75.50 mg/dL on 16 July, followed by a modest increase to 86.30 mg/dL on 09 August. Despite this fluctuation, the latest value remained below baseline.

Phosphorus improved from 5.11 mg/dL at baseline to 3.27 mg/dL on 09 August. Albumin remained relatively preserved, changing from 4.04 to 3.98 g/dL.

8. CLINICAL OUTCOME

The longitudinal laboratory record demonstrates a substantial improvement in several measured renal biochemical parameters during the observation period. Creatinine decreased by approximately 27.6%, eGFR increased by approximately 45.5%, and urea decreased by approximately 30.3% between the initial and latest documented assessments.

The latest assessment nevertheless continues to demonstrate severe renal impairment, with an eGFR of 16 mL/min/1.73 m². The improvement should therefore be interpreted as a favorable change in the measured laboratory parameters rather than normalization of renal function.

9. CONCLUSION & FUTURE DIRECTIONS

The quantitative data documented in this case demonstrate a favorable longitudinal change in renal-function parameters between May and August 2026. The most notable finding is the progressive reduction in serum creatinine from 5.07 mg/dL to 3.67 mg/dL, accompanied by an increase in reported eGFR from 11 to 16 mL/min/1.73 m² and a laboratory-reported category change from G5 to G4.

Continued long-term monitoring is recommended, including serial creatinine/eGFR, urea, electrolytes, calcium-phosphorus profile, hemoglobin, serum albumin and, where clinically indicated, quantitative urinary protein/albumin assessment. The earlier laboratory report also advised consideration of CKD Risk Map and serum Cystatin C testing.

KEY CLINICAL DATA AT A GLANCE

Prepared by

Dr Sumit Garg M.D.(Homoeopathy)
Source documentation: Serial laboratory reports supplied for Mr. Subhash Chand Garg dated 28 May, 09 June, 16 July and 09 August 2026. This report presents the laboratory findings in a formal case-study format and does not replace nephrological assessment or individualized medical care.