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Related Concept Videos

Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
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...
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.
Regulation of Sodium and Potassium01:26

Regulation of Sodium and Potassium

The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP).
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily in...
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).
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Related Experiment Video

Updated: May 23, 2026

Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis
07:11

Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis

Published on: July 19, 2018

Are dialysate sodium levels too high?

Mark R Marshall, Joanna L Dunlop

    Seminars in Dialysis
    |April 11, 2012
    PubMed
    Summary

    Lowering dialysate sodium (Na+) for dialysis patients may increase risks, particularly for frail individuals, due to hypotension. Evidence does not support universal use; clinical trials are needed to clarify benefits and risks.

    Area of Science:

    • Nephrology
    • Cardiovascular Medicine
    • Clinical Trials

    Background:

    • Dialysate sodium concentration (Na+) is a key factor in hemodialysis.
    • Lowering dialysate [Na+] is proposed to mitigate cardiovascular risks in dialysis patients.
    • However, evidence suggests potential harm, including increased morbidity and mortality, especially in vulnerable populations.

    Discussion:

    • The editorial reviews the pros and cons of using lower dialysate [Na+].
    • Intra-dialytic hypotension is a likely mechanism for increased adverse events with lower dialysate [Na+].
    • Recommendations are provided for tailoring dialysate [Na+] to specific patient groups.

    Key Insights:

    • The benefits and risks of lower dialysate [Na+] are not clearly established.

    Related Experiment Videos

    Last Updated: May 23, 2026

    Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis
    07:11

    Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis

    Published on: July 19, 2018

  • A universal, "across the board" approach to lowering dialysate [Na+] is not supported by current evidence.
  • Individualized patient selection is crucial when considering dialysate sodium manipulation.

    • Outlook:

    • Further experimental testing and clinical trials are essential.
    • Determining safe and effective dialysate [Na+] strategies requires rigorous investigation.
    • Future research should focus on identifying patient subsets that truly benefit from altered salt and water balance.