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  2. Nutcracker syndrome - Wikipedia

    en.wikipedia.org/wiki/Nutcracker_syndrome

    The signs and symptoms of NCS are all derived from the outflow obstruction of the left renal vein. The compression causes renal vein hypertension, leading to hematuria (which can lead to anemia) [4] and abdominal pain (classically left flank or pelvic pain). [5] The abdominal pain may improve or worsen depending on positioning. [5]

  3. Depolarization - Wikipedia

    en.wikipedia.org/wiki/Depolarization

    By hyperpolarizing a neuron, an inhibitory stimulus results in a greater negative charge that must be overcome for depolarization to occur. Excitation stimuli, on the other hand, increase the voltage in the neuron, which leads to a neuron that is easier to depolarize than the same neuron in the resting state.

  4. Kidney failure - Wikipedia

    en.wikipedia.org/wiki/Kidney_failure

    Kidney failure can be divided into two categories: acute kidney failure or chronic kidney failure. The type of renal failure is differentiated by the trend in the serum creatinine ; other factors that may help differentiate acute kidney failure from chronic kidney failure include anemia and the kidney size on sonography as chronic kidney ...

  5. Assessment of kidney function - Wikipedia

    en.wikipedia.org/wiki/Assessment_of_kidney_function

    The severity of chronic kidney disease (CKD) is described by six stages; the most severe three are defined by the MDRD-eGFR value, and first three also depend on whether there is other evidence of kidney disease (e.g., proteinuria): 0) Normal kidney function – GFR above 90 (mL/min)/(1.73 m 2) and no proteinuria

  6. Dialysis disequilibrium syndrome - Wikipedia

    en.wikipedia.org/wiki/Dialysis_disequilibrium...

    Dialysis disequilibrium syndrome is a reason why hemodialysis initiation should be done gradually, i.e. it is a reason why the first few dialysis sessions are shorter and less aggressive than the typical dialysis treatment for end-stage renal disease patients. [citation needed]

  7. Hyperpolarization (biology) - Wikipedia

    en.wikipedia.org/wiki/Hyperpolarization_(biology)

    Diagram of membrane potential changes during an action potential. Hyperpolarization is a change in a cell's membrane potential that makes it more negative. Cells typically have a negative resting potential, with neuronal action potentials depolarizing the membrane.