相关实验视频

Updated: Jul 5, 2025

Identification and Quantification of Deranged Metabolites in Critically Ill Patients Using NMR-Based Metabolomics
11:02

Identification and Quantification of Deranged Metabolites in Critically Ill Patients Using NMR-Based Metabolomics

Published on: November 29, 2024

539

[缺血症 - 概念和临床工作]

Ralph Kettritz

    Deutsche medizinische Wochenschrift (1946)
    |January 23, 2024
    PubMed
    概括

    保持适当的 (Na+) 水平对于细胞健康至关重要,防止危险的胀或缩. 本综述涵盖了诊断和治疗低血和高血,重点关注患者的状态和体积.

    更多相关视频

    Surgical Techniques for Catheter Placement and 5/6 Nephrectomy in Murine Models of Peritoneal Dialysis07:11

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

    Published on: July 19, 2018

    15.3K
    Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies10:38

    Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies

    Published on: January 16, 2019

    20.2K

    相关概念视频

    Disorder of Water Balance01:29

    Disorder of Water Balance

    Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
    Dehydration
    Dehydration occurs when the body loses fluids (particularly water).
    Causes:
    The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
    Signs and Symptoms:
    Symptoms primarily include intense...
    399
    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...
    314
    Formation of Dilute Urine01:20

    Formation of Dilute Urine

    The formation of dilute urine is a critical renal adaptation that maintains fluid balance, particularly during periods of high fluid intake. This process primarily involves the juxtamedullary nephrons. By adjusting the permeability of water and ions in response to physiological conditions, the kidneys can either conserve or excrete water, resulting in concentrated or dilute urine.
    Filtrate Osmolarity in the PCT
    Initially, as the filtrate passes through the proximal convoluted tubule (PCT), its...
    1.6K
    Renal Tubule and Collecting Duct01:24

    Renal Tubule and Collecting Duct

    The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
    Proximal Convoluted Tubule (PCT):
    The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
    986
    Physiology of Urine Formation01:24

    Physiology of Urine Formation

    Urine formation is an essential function of the human body. It plays a critical role in maintaining homeostasis by regulating the volume and composition of body fluids. The kidneys, the primary organs involved in this process, filter blood to remove waste products and excess substances, ultimately producing urine.
    Glomerular Filtration
    The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
    4.0K
    Formation of Concentrated Urine01:23

    Formation of Concentrated Urine

    There is a gradient of solutes in the interstitial fluid from the renal cortex through the medulla, known as the medullary osmotic gradient. The juxtamedullary nephrons establish and maintain this gradient using countercurrent mechanisms with loops extending deep into the medulla. These nephrons also use countercurrent mechanisms to regulate urine volume and concentration. The interaction between the descending and ascending limbs of the nephron loop creates an osmotic gradient through...
    1.7K