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Related Concept Videos

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: 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...
Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this measurement...
Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
Dialysis01:15

Dialysis

Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
Dialysis01:27

Dialysis

Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...

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Related Experiment Video

Updated: Jul 18, 2026

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice
06:27

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

Published on: July 20, 2022

Can a decreasing ultrafiltration profile affect the dialytic dose administered?

Alfonso Ramunni1, Paola Brescia, Giuseppe Ranieri

  • 1Section of Nephrology, Department of Internal and Public Medicine, University of Bari, Bari, Italy. a.ramunni@nephro.uniba.it

Therapeutic Apheresis and Dialysis : Official Peer-Reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy
|November 14, 2006
PubMed
Summary

A decreasing ultrafiltration (UF) profile in hemodialysis does not change the overall dialytic dose compared to a constant UF mode. This study found no significant difference in urea removal efficiency between the two UF methods.

Related Experiment Videos

Last Updated: Jul 18, 2026

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice
06:27

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

Published on: July 20, 2022

Area of Science:

  • Nephrology
  • Renal Replacement Therapy

Background:

  • Ultrafiltration (UF) during hemodialysis can impact dialytic dose due to urea convection and volume changes.
  • Understanding UF profile effects is crucial for optimizing dialysis efficacy.

Purpose of the Study:

  • To compare the dialytic dose achieved with a decreasing UF profile versus a constant UF mode.
  • To assess the impact of UF profiling on urea removal and patient fluid status.

Main Methods:

  • Randomized crossover study involving 10 hemodialysis patients.
  • Patients underwent 12 sessions with constant UF and 12 sessions with decreasing UF, in random order.
  • Key metrics included Kt/V, urea reduction ratio (URR), and volemic variations.

Main Results:

  • No significant differences were observed in Kt/V or URR between constant and decreasing UF modes.
  • Significant differences in volemic reduction were noted at hours 2 and 4, with varying patterns between phases.
  • Despite volemic differences, overall dialysis efficiency remained comparable.

Conclusions:

  • The adoption of a decreasing UF profile in standard bicarbonate dialysis does not alter the efficiency of the dialytic treatment.
  • UF profiling may influence fluid shifts during dialysis but does not compromise urea clearance.