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Related Concept Videos

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

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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.
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Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

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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...
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Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

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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...
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Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

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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.
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Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
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Related Experiment Videos

Elevated copeptin is a prognostic factor for mortality even in patients with renal dysfunction.

Christiane Engelbertz1, Eva Brand2, Manfred Fobker3

  • 1Division of Vascular Medicine, Department of Cardiovascular Medicine, University Hospital Muenster, Muenster, Germany.

International Journal of Cardiology
|July 13, 2016
PubMed
Summary

Elevated copeptin levels predict mortality in patients with coronary artery and kidney disease. This finding is independent of renal function, offering valuable prognostic information for cardiovascular outcomes.

Keywords:
Chronic kidney diseaseCopeptinCoronary artery diseaseMortalityPrognosis

Related Experiment Videos

Area of Science:

  • Cardiology
  • Nephrology
  • Biomarkers

Background:

  • Copeptin is a known prognostic marker for cardiovascular events.
  • Its utility in chronic kidney disease (CKD) patients is unknown due to renal function dependency.

Purpose of the Study:

  • To investigate copeptin as a prognostic marker for mortality in patients with coronary artery disease and varying stages of CKD.

Main Methods:

  • 301 patients with coronary artery disease and stenosis were included.
  • Patients were classified by CKD stage based on eGFR.
  • Copeptin levels, creatinine, and 180-day all-cause mortality were assessed.

Main Results:

  • Copeptin levels increased with declining renal function.
  • Elevated copeptin (≥14pmol/L) was observed in 26.9% of patients.
  • Multivariate analysis revealed copeptin as an independent predictor of mortality (HR 5.317, p=0.005).

Conclusions:

  • Elevated copeptin is a valuable prognostic factor for intermediate-term mortality.
  • This applies to patients with co-existing coronary artery and renal disease.
  • Copeptin offers prognostic value independent of serum creatinine.