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Related Concept Videos

Tonicity in Animals01:16

Tonicity in Animals

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Tonicity describes the amount of solute in a solution. The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three terms—hypotonic, isotonic, and hypertonic—are used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. In a hypotonic solution, such as tap water, the extracellular fluid has a lower concentration of solutes than the fluid inside...
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Tonicity in Animals00:59

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The tonicity of a solution determines if a cell gains or loses water in that solution. The tonicity depends on the permeability of the cell membrane for different solutes and the concentration of nonpenetrating solutes in the solution within and outside of the cell. If a semipermeable membrane hinders the passage of some solutes but allows water to follow its concentration gradient, water moves from the side with low osmolarity (i.e., less solute) to the side with higher osmolarity (i.e.,...
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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...
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Nursing management for nephrotic syndrome adapts as the disease progresses, with strategies evolving to address advancing symptoms and complications.Early-Stage Management In the early stages, nursing interventions for nephrotic syndrome resemble those used in managing acute glomerulonephritis, focusing on symptom monitoring, fluid balance, and managing mild to moderate edema.Vital Signs: Regularly monitor blood pressure, pulse, respiratory rate, and temperature to promptly identify...
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Nephrotic Syndrome II : Assessment and Medical Management01:26

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IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document...
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Composition of Body Fluids01:29

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Water functions as a solvent accommodating various solutes, which can be categorized under electrolytes and non-electrolytes. Non-electrolytes are usually held together by covalent bonds, restricting them from dissociating in solution, thereby leading to a lack of electrically charged components upon dissolving in water. They are predominantly organic molecules, such as glucose, creatinine, and urea. Electrolytes, on the other hand, are compounds that can break down into ions in water.
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Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
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Maintenance Fluid Therapy: Isotonic Versus Hypotonic Solutions.

Bernie Hansen1, Alessio Vigani2

  • 1Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA.

The Veterinary Clinics of North America. Small Animal Practice
|December 3, 2016
PubMed
Summary

Veterinary fluid therapy for hospitalized pets aims to replace lost fluids and electrolytes. Improper fluid choices can lead to dangerous water retention and edema in dogs and cats.

Keywords:
HyponatremiaIntravenous fluidsMaintenance requirementsTonicityVolume overload

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Area of Science:

  • Veterinary Medicine
  • Animal Physiology

Background:

  • Maintenance fluid therapy replaces ongoing water and salt losses when oral intake is not possible in small animals.
  • Hospitalized dogs and cats can experience disrupted osmoregulation due to stimuli for antidiuretic hormone release, leading to water retention.
  • Severe illness can cause both sodium and water retention, resulting in edema.

Purpose of the Study:

  • To highlight the challenges in maintenance fluid therapy for hospitalized small animals.
  • To discuss the potential risks associated with commercially available fluids.
  • To provide guidance on tailoring fluid administration for specific patient needs.

Main Methods:

  • Review of physiological responses to fluid therapy in ill animals.
  • Analysis of electrolyte and osmolality imbalances from standard fluid formulations.
  • Discussion of clinical consequences of inappropriate fluid administration.

Main Results:

  • Hospitalized animals are prone to water retention due to hormonal changes.
  • Commercial fluids often have electrolyte concentrations that differ significantly from maintenance needs.
  • Administration of excess water or sodium can lead to hypoosmolality and edema.

Conclusions:

  • Standard fluid therapy may not meet the specific needs of hospitalized small animals.
  • Careful consideration of fluid composition is crucial to avoid adverse effects like edema.
  • Tailoring fluid therapy based on individual patient goals is recommended for optimal outcomes.