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  2. Syndrome of inappropriate antidiuretic hormone secretion

    en.wikipedia.org/wiki/Syndrome_of_inappropriate...

    There are nine supplemental features: 1) a low BUN; 2) a low uric acid; 3) a normal creatinine; 4) failure to correct hyponatremia with IV normal saline; 5) successful correction of hyponatremia with fluid restriction; 6) a fractional sodium excretion >1%; 7) a fractional urea excretion >55%; 8) an abnormal water load test; and 9) an elevated ...

  3. Blood urea nitrogen - Wikipedia

    en.wikipedia.org/wiki/Blood_urea_nitrogen

    BUN is an indication of kidney health. The normal range is 2.1–7.1 mmol/L or 6–20 mg/dL. [1]The main causes of an increase in BUN are: high-protein diet, decrease in glomerular filtration rate (GFR) (suggestive of kidney failure), decrease in blood volume (hypovolemia), congestive heart failure, gastrointestinal hemorrhage, [5] fever, rapid cell destruction from infections, athletic ...

  4. Ornithine transcarbamylase deficiency - Wikipedia

    en.wikipedia.org/wiki/Ornithine_transcarbamylase...

    Ornithine transcarbamylase deficiency also known as OTC deficiency is the most common urea cycle disorder in humans. Ornithine transcarbamylase, the defective enzyme in this disorder, is the final enzyme in the proximal portion of the urea cycle, responsible for converting carbamoyl phosphate and ornithine into citrulline.

  5. Urea-to-creatinine ratio - Wikipedia

    en.wikipedia.org/wiki/Urea-to-creatinine_ratio

    In medicine, the urea-to-creatinine ratio (UCR [1]), known in the United States as BUN-to-creatinine ratio, is the ratio of the blood levels of urea (mmol/L) and creatinine (Cr) (μmol/L). BUN only reflects the nitrogen content of urea (MW 28) and urea measurement reflects the whole of the molecule (MW 60), urea is just over twice BUN (60/28 ...

  6. Hemolytic–uremic syndrome - Wikipedia

    en.wikipedia.org/wiki/Hemolytic–uremic_syndrome

    Hemolytic–uremic syndrome (HUS) is a group of blood disorders characterized by low red blood cells, acute kidney injury (previously called acute renal failure), and low platelets. [1] [3] Initial symptoms typically include bloody diarrhea, fever, vomiting, and weakness. [1] [2] Kidney problems and low platelets then occur as the diarrhea ...

  7. Nephritic syndrome - Wikipedia

    en.wikipedia.org/wiki/Nephritic_syndrome

    An elevated creatinine level is considered abnormal and may indicate decreased kidney function. [31] Blood urea nitrogen (BUN) - Also measured using a BMP or CMP, blood urea nitrogen is an indicator of how much nitrogen is in the blood at the time of the phlebotomy. The kidney is responsible for excreting nitrogenous substances in the urine, so ...

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