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Related Concept Videos

Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant01:25

Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant

In patients with renal disease, dosage adjustments are necessary to maintain therapeutic plasma drug concentrations and prevent toxicity or subtherapeutic exposure. Renal impairment alters drug pharmacokinetics, especially in conditions like uremia, where changes such as prolonged elimination half-life and altered apparent volume of distribution can significantly affect drug disposition. These changes require careful modification of the dosing regimen to achieve the desired clinical...
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: 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...
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...
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...

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Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats
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Appropriately assessing renal function for drug dosing.

Kimberly Dong1, David J Quan

  • 1School of Pharmacy, University of California San Francisco, San Francisco, CA, USA. kimberly.m.dong@gmail.com

Nephrology Nursing Journal : Journal of the American Nephrology Nurses' Association
|July 16, 2010
PubMed
Summary
This summary is machine-generated.

Chronic kidney disease (CKD) impairs drug elimination, increasing toxicity risk. Monitoring renal function is crucial for safe and effective medication dosing in CKD patients.

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Last Updated: Jun 11, 2026

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Published on: March 11, 2016

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Area of Science:

  • Nephrology
  • Clinical Pharmacology

Background:

  • Chronic kidney disease (CKD) is a prevalent condition affecting millions.
  • Kidney function is critical for the elimination of many pharmaceutical agents.
  • Declining renal function in CKD can lead to drug accumulation and potential toxicity.

Purpose of the Study:

  • To highlight the importance of assessing kidney function in patients with CKD.
  • To underscore the necessity of dose adjustment for renally eliminated drugs.
  • To emphasize the goal of optimizing therapeutic outcomes while minimizing adverse drug events.

Main Methods:

  • Review of physiological principles of drug elimination.
  • Analysis of the impact of reduced glomerular filtration rate on drug pharmacokinetics.
  • Discussion of clinical strategies for medication management in renal impairment.

Main Results:

  • Drug accumulation is a significant risk in patients with impaired kidney function.
  • Accurate assessment of renal function is paramount for safe prescribing.
  • Therapeutic drug monitoring may be indicated in certain cases.

Conclusions:

  • Renal function assessment is indispensable for appropriate drug dosing in CKD.
  • Failure to adjust doses can result in sub-therapeutic effects or toxicity.
  • Personalized medication management is key to improving patient care in nephrology.