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Related Concept Videos

Drug Dosing in Renal Diseases: Measurement of Serum Creatinine Concentration and Clearance01:25

Drug Dosing in Renal Diseases: Measurement of Serum Creatinine Concentration and Clearance

In healthy individuals, serum creatinine levels remain stable due to a balance between its constant production—primarily from muscle metabolism—and renal excretion. Creatinine is freely filtered by the glomeruli, making it a valuable marker for estimating renal function. When the glomerular filtration rate (GFR) decreases, the kidneys can only eliminate less creatinine, causing serum levels to rise.Serum creatinine concentration is widely used to estimate creatinine clearance (Clcr), a...
Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area. This equation is...
Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate01:25

Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate

The glomerular filtration rate (GFR) is a critical indicator of kidney health, reflecting how well the kidneys filter blood. Changes in GFR can signal potential kidney impairment, necessitating accurate measurement methods to monitor kidney function effectively.Various molecules can serve as markers for GFR measurement, with the ideal marker meeting several specific criteria. It must freely filter at the glomerulus, avoid reabsorption or secretion by the renal tubules, remain unmetabolized, not...

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Related Experiment Video

Updated: Jul 8, 2026

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice
09:09

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice

Published on: August 9, 2013

Elevated serum creatinine levels associated with fenofibrate therapy.

Charles R McQuade1, Jennifer Griego, Joe Anderson

  • 1University of New Mexico College of Pharmacy, Albuquerque, NM 87131, USA.

American Journal of Health-System Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists
|January 15, 2008
PubMed
Summary

Fenofibrate therapy may cause kidney damage in patients with chronic kidney disease (CKD). Discontinuation of fenofibrate led to improved kidney function in a case study of a patient with hypertriglyceridemia.

Related Experiment Videos

Last Updated: Jul 8, 2026

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice
09:09

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice

Published on: August 9, 2013

Area of Science:

  • Nephrology
  • Pharmacology
  • Internal Medicine

Background:

  • Fenofibrate is a medication used to treat hypertriglyceridemia.
  • Chronic kidney disease (CKD) affects kidney function and requires careful medication management.
  • Patients with CKD are at increased risk for adverse drug events.

Observation:

  • A 60-year-old male with stage 4 CKD was treated with fenofibrate for hypertriglyceridemia.
  • The patient experienced a significant increase in serum creatinine (SCr) and blood urea nitrogen (BUN) levels, with a decrease in estimated glomerular filtration rate (eGFR) after initiating fenofibrate.
  • Despite dose adjustments, renal function continued to decline, necessitating preparation for hemodialysis.

Findings:

  • Discontinuation of fenofibrate resulted in a notable drop in SCr levels and a return of eGFR to baseline within six weeks.
  • The Naranjo probability scale suggested a possible association between fenofibrate use and the observed renal dysfunction.
  • The patient's renal function remained stable for 12 months after discontinuing fenofibrate.

Implications:

  • This case highlights the potential nephrotoxic effects of fenofibrate in patients with pre-existing CKD.
  • Clinicians should monitor renal function closely in patients with CKD receiving fenofibrate.
  • Further research may be warranted to elucidate the mechanisms of fenofibrate-induced renal impairment and identify at-risk populations.