oliguria pronunciation. How to say oliguria in English? Pronunciation of oliguria with 6 audio pronunciations, 3 synonyms, 1 meaning, 8. oliguria pronunciation

 
 How to say oliguria in English? Pronunciation of oliguria with 6 audio pronunciations, 3 synonyms, 1 meaning, 8oliguria pronunciation  Perfect your pronunciation and sound like a native speaker today!Learn the definition of 'oliguria'

12. Urine output (UO) criterion may increase the sensitivity of the definition of acute kidney injury (AKI). Share the Definition of oliguria on Twitter Twitter. Anuria is the absence of urine production, defined as a urine output of fewer than 100 milliliters per day. La oliguria puede ser transitoria o evolucionar hacia una anuria (en la que los. Perioperative oliguria, while common, rarely implies acute renal failure (ARF). Most newborns are non-oliguric, and various classifications have been made to identify AKI in the early stages. In later stages, symptoms may include: High blood pressure that gets harder to control. pain during urination. to urinate). It is a more extreme reduction than oliguria (hypouresis), with 100. . -ik. Acute kidney injury (AKI) is a sudden loss of renal function with a subsequent rise in creatinine and blood urea nitrogen (). Oliguria was defined by a urine output < 0. Urination is important in removing. oliguria: 1 n abnormally small production of urine; can be a symptom of kidney disease or obstruction of the urinary tract or edema or an imbalance of fluids and electrolytes in the body Type of: symptom (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease n. Perioperative oliguria…. 5 ml/kg/hr) is an important marker of renal hypoperfusion and evolving acute tubular necrosis. Swelling of feet, ankles, hands or eyes. What term means increase in nitrogenous compounds in the blood? A. Patients by this point usually have noticeable tachycardia and tachypnea, oliguria, decreased. Oliguria can arise from pre-renal, intrinsic renal, and post-renal causes. Oliguria is often observed in critically ill patients. 2 ml/kg/h over 3 or 6 h is supported by the data and should be considered in further definitions of oliguria. Anuria is defined as absence of any urine output. With a normal diet, about 600 mOsm/day of solute waste products generated by metabolism must be excreted in the urine. The exact type of bacterial growth is determined by conducting urine for culture and sensitivity (C&S) testing. The surgeons at Lake Norman Medical Group work closely with patients, families and. Pyorrhea, 2. A person may first experience oliguria, or low output of urine, and then progress to anuria. Cuprins. Confusion or difficulty thinking. pyorrhea: flow or discharge of pus. abnormally small production of urine; can be a symptom of kidney disease or obstruction of the urinary tract or edema or an imbalance of fluids and electrolytes in the body 2. Conceptual model for development and clinical course of AKI 48 Figure 9. oliguria pronunciation - How to properly say oliguria. GFR/SCr algorithm 38 Figure 8. Understand the physiology. 1 Oliguria can be classified as prerenal, renal, or postrenal and may represent either an appropriate. . It is a common finding during routine preoperative evaluation. Grammar. in a sentence, look up the pronunciation first in a dictionary, then use how to say Xanthoderma with EmmaSaying free pronunciation tutorials. Subscribe for more videos!Have we pronounced this wrong? Teach everybody how you say it using the comments below!!Trying to study English? Claim exclusive deals on the best English co. Preeclampsia is a disorder of pregnancy that is associated with new-onset hypertension (defined as a systolic blood pressure ≥140 mmHg and/or a diastolic blood pressure ≥90 mmHg), most often after 20 weeks' gestation and frequently near term. Gangguan saluran kemih ini biasanya Anda alami akibat dehidrasi, penyumbatan, atau efek samping obat-obatan tertentu. Hemodialysis (HD): uses an artifical kidney machine to remove wastes. | Meaning, pronunciation, translations and examples. urea. Tags for the word Oliguria:Abstract. Unlock premium audio pronunciations. the discharge of blood in the urine, making the urine either slightly blood-tinged, grossly bloody, or a smoky brown color. c. While there are several definitions of oliguria and anuria, generally, oliguria is defined as urinary output of less than 0. Raising the level of nitrogenous waste is attributed to the inability of the renal system to filter (decreased glomerular filtration rate. -ˈn (y)u̇r-ik. Dehydration due to vomiting, diarrhea, perspiration, severe burns. the diamide of carbonic acid found in urine, blood, and lymph, the chief nitrogenous constituent of urine, and the chief nitrogenous end-product of protein metabolism; it is formed in the liver from amino acids and from ammonia compounds. 3 Noun 3. Moreover, the nonoliguric state may accompany acute renal failure due to pre- and post-renal azotemia and a variety of renal parenchymalIntroducción. The adrenal glands are part of the body's hormone-producing (endocrine) system. La oliguria es uno de los términos médicos empleados con más frecuencia. Study with Quizlet and memorize flashcards containing terms like 1. Oliguria, 3. Start your 7-day free trial to receive access to high fidelity premium pronunciations. Depending on the body's need to conserve or eliminate water and/or solutes. Although often accompanied by new-onset proteinuria, hypertension and other signs or. anuria: [ ah-nu´re-ah ] 1. A more serious cause of oliguria is KIDNEY FAILURE, either acute or, less often, following long-term kidney disease. Oliguria etiology. . Urodynia E. Treatment can depend on the cause but may. Oliguria is defined as a urine output that is less than 1 mL/kg/h in infants, less than 0. The meaning of POLYURIA is excessive secretion of urine. It may occur with end stage kidney disease. Oliguria could indicate that there is something wrong in your kidney. Nglish: Translation of oliguria for Spanish Speakers. 7 ml/kg/h for 24 h or anuric for 12 h [ 2 ]. 5 ml kg−1 h−1. Normal urine flow should be greater than a liter a day. In this definition AKI is diagnosed and staged according to creatinine (AKI-Cr) and/or urine output (AKI-UO) criteria with the most sensitive stage 1 being defined as UO less than 0. Labs. Definition. , urinary crystals, bacteria, and yeast in a urine sample. Th. Although oliguria has traditionally often been interpreted as a surrogate for hypovolemia, this is not accurate. Ausência de urina (anúria) é sugestiva de obstrução mecânica da bexiga ou da SVD, caso presente, até que se prove o contrário. In functie de mecanismul patologic care ii. 2 Pronunciation 3. Serum electrolytes such as sodium, blood urea nitrogen, and creatinine should be measured to assist in determining the cause of oliguria. Specialty. Listagem das principais pesquisas realizadas pelos usuários para acessar o nosso dicionário inglês online e expressões mais usadas com a palavra. If left untreated, oliguria can be life. 5 ml/kg/h for a period of at least 6 h. Acute kidney injury (AKI) is a clinical syndrome arbitrarily defined by either an abrupt increase in serum creatinine concentration by ≥26. 9% saline (20 mL/kg in children); an increase in output suggests a prerenal cause. In. Unlock premium audio pronunciations. py/o. Definition and meaning can be found here:is the medically defined term for a condition in which an abnormally small amount of urine is produced by the body - with urine production at a rate of less than 0. Anuria is defined as absence of any urine output. io Takeaway. Post Meanings. One of the most commonly used criteria is the Kidney Disease: Improving Global Outcomes (KDIGO) definition below: 2. The criteria to diagnose oliguria in infants is a urine output lower than 1 mL/kg/h,. Oliguria is the production of fewer than 500 milliliters of urine in 24 or fewer hours in adults or less than 0. 5 mL/kg. Oliguria is when urine output is lower than expected. 1 Oliguria has been defined as urine output ranging from less than 0. Roots usually indicate an anatomical structure. Acute renal failure - definition. The oliguria definition was stated in 81. A healthy individual produces between 800 and 2000 milliliters of urine daily, depending on their hydration level. Contain only one word element and a suffix. 6% (49/60) of developed country studies and in 97% (32/33) of developing country studies. 1. Pronunciation of the word(s) "Voiding Cystourethrography". hemodialysis. During the oliguric phase of ARF, your urine output is at its lowest. Oliguria can be caused by any type of renal failure (if sufficiently severe). oliguria - Meaning in English, what is the meaning of oliguria in English dictionary, pronunciation, synonyms, usage examples and definitions of oliguria in English and English. Además de no poder orinar, una persona con oliguria puede tener la piel seca, taquicardia, sarpullido, fiebre o agrandamiento de los riñones. Definition of decreased urine output (oliguria) Questions to consider when first presented with oliguria Recognizing causes of oliguria Focused review of history and physical Management of oliguria Recognizing life threatening complications. Oliguria is the medical term for passing less than 400ml of urine per day if you are an adult. Causes of AKI include: Pre-renal — due to reduced perfusion of the kidneys and/or hypotension. The strength of association was estimated primarily by pooling unadjusted data using an inverse-variance weighted random-effects model, and reported as OR with 95% CI. 25 milliliters of urine per kilogram per hour. Importance of juxta medullary nephrons… Filtration and reabsorption across capillaries vs. Contents Overview Symptoms and Causes Diagnosis and Tests Management. Definition…. Oliguria is manifested with-in 1 to 7 days of kidney injury. . what is the largest blood vessel in the body and also. [1] The decreased output of urine may be a sign of dehydration, kidney failure, hypovolemic shock, hyperosmolar hyperglycemic nonketotic syndrome (HHNS), multiple organ dysfunction. 3 mg/dL above the baseline within 48 hours or 1. Oliguria is frequently observed in the perioperative period and may be the consequence of hypovolemia and/or pain, both triggering the sympathetic nervous system, which in turn lead to activation of the renin-angiotensin-aldosterone system with ensuing oliguria. In some patients the syndrome is distinguished by oliguria or anuria, but today this classical feature of. " 2. We documented urine output and daily serum creatinine concentration in patients admitted for more than 24 hours in seven intensive care units (ICUs) from six countries over a period of two to four weeks. Acute kidney injury is defined as an abrupt (within 48 hours) reduction in kidney function based on an elevation in serum creatinine level, a reduction in urine output, the need for. Oliguria 释义: excretion of an abnormally small volume of urine , often as the result of a kidney. oliguria causes . Polyuria occurs in some other conditions such as:Oliguria — Patients with preeclampsia commonly have transient oliguria (less than 100 mL over 4 hours) in labor or the first 24 hours postpartum. hematuria. Calculating the fractional excretion of sodium (FENa) from the plasma and urine concentrations of sodium can help to. Oliguria merupakan gejala dari gangguan kesehatan, mulai dari dehidrasi hingga penyakit ginjal. Statistical analyses. Loss of appetite. Stay tuned and study speak words correctly with Word Panda. Lois L. 5 ml/kg/hour. oliguria vs anuria . ICD-10-CM Diagnosis Code O90. 5. 2 mg/dL (53-106 μmol/L) in men. Oliguria, defined as urine output <0. Refine your pronunciation of oliguria with our free online dictionary. Elle peut être due à de nombreux dysfonctionnements physiologiques, et pas seulement à un mauvais fonctionnement des reins. Sepsis was the most common cause of AKI in all groups (41. Bellomo R, Ronco C, Kellum JA, et al. Falta. 5 ml/kg/hour. 4. Evaluation Treatment Key Points Oliguria is urine output < 500 mL in 24 hours in an adult or < 0. We also share information about the use of the site with our social media, advertising and analytics partners. oliguria (noun) production of an abnormally small amount of urine. UO2 and UO3 assess the total volume of urine over a 6-h interval and consider oliguria if this volume is ≤3 mL/kg. Data were collected until the occurrence of creatinine-defined AKI. 5 oz) of urine per day and anuria (the most extreme of all of these) is defined as urine production of zero to 100 mL (0 to 3. Anuria definition: . Calculating the fractional excretion of sodium (FENa) from the plasma and urine concentrations of sodium can help to. oliguria translation and audio pronunciation Oliguria. Definition of oliguria and AKI. Gross hematuria that is visible to the naked. The general question "why is this patient passing no urine" comes up rather frequently. Urine volume and serum creatinine of a patient classified by the olig6-mblock definition, but not classified by. Anuria refers to a medical condition where essentially no urine is being. Polyuria: The excessive passage of urine (at least 2. 3 to 13. Orang dengan ginjal yang sehat dapat menghasilkan urine sekitar 800–2. Oliguria is defined as a urine output that is less than 1 mL/kg/h in infants, less than 0. Oliguria: disminución del volumen de orina excretado, aunque en algunos casos puede mantenerse estable. 2. It is a more extreme reduction than oliguria (hypouresis). It is most frequently caused by decreased renal perfusion but may also be due to direct damage to the kidneys (intrarenal or intrinsic) or inadequate urine drainage (postrenal). Oliguria is defined as abnormally small production of urine. La copii oliguria este definita de prezenta unui debit urinar sub 1ml/kg corp/ora. Oliguria secondary to a decrease in GFR usually is related to one of the following conditions:. 5 mL/kg/hour lasting for at least 6 hours. 2023 To meet the clinical definition of polyuria, urine output for an adult must exceed 2. Pyuria is a condition in which you have pus in your pee. Presentation. Learn how to say Oliguric with EmmaSaying free pronunciation tutorials. per case and a 25% prevalence of oliguria in controls, we anticipated requiring 410 case days to detect an odds ratio of 1. 5 liters per day for an adult) resulting in profuse urination and urinary frequency (the need to urinate frequently). Oliguria associated with formation of a reduced quantity of urine is related to renal function and may be physiologic or pathologic in nature. Oliguria is also a medical term referring to a lower urine output than normal. Oliguria is when you pee less than usual. Oliguria definition, pronuniation, antonyms, synonyms and example sentences in Hindi. Watch in this video how to say and pronounce "oliguria"! The video is produced by yeta. 5 ml/kg/h) is independently associated with adverse outcome. In order to standardize the use of the term across different studies and populations, the Acute Dialysis Quality Initiative (ADQI) recently adopted a definition of oliguria as urine output of less than 0. 030 in dogs and >1. Orang dewasa normal umumnya mengeluarkan 1. 5 mL/kg/hour [often <500 to 600 mL/day]) or anuria in a patient not on maintenance dialysis indicates an acute process. Similar to oliguria and anuria, many definitions exist. Definition: Surgical removal of one or both ovaries. 6. Diuresis is defined as a condition in which an excessive volume of bodily fluids passes through the kidneys, resulting in both filtration of bodily fluids and filling of the bladder. 1 Derived terms 3. 5 ml/kg/hr for several hours, or roughly <500 ml/day). Oliguria is the sudden decrease in urine output – most often defined as <400 mL/day or <0. Contain two or more roots or CFs. Oliguria can be defined as a urine output that is less than 500 mL/day or urine output less than 0. A urinary tract infection (UTI) is an infection caused by bacteria, or sometimes, fungi. It was in the second century that Galen proposed its significance to. Severe oliguria even without accompanying changes in serum creatinine is associated with long-term morbidity and mortality []. [1] Oliguria menggambarkan gangguan atau penurunan fungsi ginjal, utamanya laju filtrasi. While some studies have demonstrated that isolated oliguria without a concomitant increase in serum creatinine is. Urine output criteria are generally poorly documented, resulting in uncertainty in the most accurate threshold to identify AKI in very preterm infants with known tubular immaturity. oliguria. liver disease. What is Oliguria ? Definition. found that UO overestimated the proportion of AKI after liver surgery, corroborating our results. Urine output (UO) can detect AKI earlier than SCr, which is recognised to be a late biomarker of AKI e. The only risk factor for postoperative serum creatinine increase was an operation time >360 minutes. A furosemide stress test (FST) is used when approaching a patient with oliguria to determine whether underlying renal function is intact. Microscopic examination of a urine specimen can reveal red blood cells not evident to the naked eye; however, this microscopic hematuria is not always pathognomonic. Polyuria, or frequent voiding due to a high volume of urine, is a symptom of diabetes, heart and kidney problems, and other age-related conditions, S. Learn the MOST Difficult Words in the world: signs and symptoms may include: Pink or cola-colored urine from red blood cells in your urine (hematuria) Foamy or bubbly urine due to excess protein in the urine (proteinuria) High blood pressure (hypertension) Fluid retention (edema) with swelling evident in your face, hands, feet and abdomen. Definition and meaning can be found here:See full list on my. one study suggested that UO can detect AKI 11 h earlier than SCr [3, 4]. Listen to the audio pronunciation of Oliguria on pronouncekiwi. This article explains polyuria symptoms and causes. Oliguria-based criteria identify AKI in patients without any elevation of sCr levels and reclassify several AKI cases based on sCr. Definition and meaning were removed to avoid copyright violation, but you can. However, different thresholds in urine output (UO) have raised discussion as to the clinical importance of a transiently reduced UO of less than 0. However, oliguria can also cause flu-like symptoms nausea, vomiting, diarrhea, and fever. Normal urine output for the dog and the cat is 1 to 2 ml/kg/hr. In obstetric patients, oliguria is. 5 Further reading English [ edit] Etymology [ edit] olig- +‎ -uria, from Ancient. Technically speaking, we talk of oliguria when you produce less than 400 mL of urine per day or less than 20 mL per hour. The term diuresis is also defined as formation of abnormally large volumes of urine. Common causes include diabetes, kidney disease, and certain medications. Oliguria (urine output <0. 1 Investigate for acute kidney injury, by measuring serum creatinine and comparing with baseline, in adults with acute illness if any of the following are likely or present: chronic kidney disease (adults with an estimated glomerular filtration rate [eGFR] less than 60 ml/min/1. oliguria is made up of a prefix and a suffix, olig originating from the Greek meaning few or small and uria also Greek pertaining to urine (ur), thus oliguria means that a scanty or small amount of urine is being produced. complete suppression of urine formation and excretion, as in acute renal failure . These people tend to have less injury to the kidney and have greater survival statistics and so forth. Causes of Oliguria. 5 mL/kg/h (Fig. In a study of PO-AKI after non-cardiac surgery, the incidence of AKI increased from 8% to 64% if urine output was included in the definition 37. For children and babies, the amount is based on their body weight (less than 1ml per kg per hour for babies and less than 0. Help WordReference: Ask in the forums yourself. Learn how to say/pronounce oliguria in American English. Urine output <0. For example, "Oliguria, a medical condition, refers to a decreased urine output, typically less than 400 milliliters per day in adults. Intra-renal — due to structural damage to the kidney. Shortness of breath. Although not every patient needs treatment, most people seek. What term means act of voiding urine? A. Azotemia is a biochemical abnormality, defined as elevation, or buildup of, nitrogenous products (BUN-usually ranging 7 to 21 mg/dL), creatinine in the blood, and other secondary waste products within the body. coli, entering the urinary system through the urethra, they occur more frequently in women because the urethra is. Cauzele oliguriei pot fi prerenale, renale sau postrenale: Oricine poate suferi de oligurie dar cele mai predispuse sunt persoanele care au anumite. Although oliguria can be the result of transitory changes in volume status or due to external influences, such as drug administration, UO is currently included as a criterion to diagnose and stage acute kidney injury (AKI). OR. 000 mL per 24 jam bila ia minum dengan cukup (sekitar 8−10 gelas per hari). 9% saline (20 mL/kg in children); an increase in output suggests a prerenal cause. In five studies from developed countries and two from developing countries, the oliguria definition was not available in the manuscript and was obtained through contact with the researcher by electronic mail. Stages of AKI, as defined by the KDIGO criteria. Oliguria is different from anuria, which is when urine. If you pee too much or not enough, it can sometimes be a sign. Educalingo cookies are used to personalize ads and get web traffic statistics. Oliguria is defined as UO < 0. Related glossary terms/phrases: Polyuria. UTIs are the most common cause, but other causes include STIs, viral infections and chronic use of some medications. What level of urine output is considered anuria? Anuria: It is characterized by reduced urine output (<100mL urine per day), reflecting renal injury. The term oliguria has been used to describe decreased urine formation by kidneys or decreased elimination of urine from the body. Lake Norman Medical Group provides complete surgical services, from emergency care to treatment of disease in nearly all of the body’s organs - tumor removal, hernia repair, vascular surgery and wound care – many using minimally invasive surgical techniques. GFR may decrease dramatically and manifest as oliguria, with accumulation of nitrogenous waste products of metabolism and development of uremia, confusion with cognitive decline, pericarditis, and platelet dysfunction. Low urine volume is a danger to health because of the need to remove. While some studies have demonstrated that isolated oliguria without a concomitant increase in serum. AKI is defined and staged into 3 severity stages by a combination of either an increase of SCr or a period of oliguria (). 5 ml/kg/h in children). Oliguria has many potential causes. ; Oliguria when ; 400 mL ( millilitres ) are produced, and anuria one of 100 mL per day. PRONUNCIATION OF. 000–2. Oliguria is usually defined as urine output of less than 0. noun. 4. . Oligura D. A large decrease in urine output may be a sign of a serious condition. Post-renal — due to acute urinary tract obstruction. Acute tubular necrosis is usually asymptomatic but may cause symptoms or signs of acute kidney injury, typically oliguria Oliguria Oliguria is urine output < 500 mL in 24 hours in an adult or < 0. Compared with the Scr criteria the UO. All Free. Anuria is nonpassage of urine, in practice is defined as passage of less than 100 milliliters of urine in a day. Perfect your pronunciation and sound like a native speaker today!Learn the definition of 'oliguria'. increase in serum creatinine by ≥ 0. 3 mL/kg/h for 24 hours or longer. Oliguria is usually caused by inadequate fluid intake or increased fluid loss in sweating or diarrhoea. Azotemia B. Oliguria is a medical term for decreased urine output (less than 400 ml urine output in adults, less than 1ml/kg/h in infants and less than 0. New from Collins. Learn how to say Perinuclear with EmmaSaying free pronunciation tutorials. The current definition and staging of acute kidney injury (AKI) considers alterations in serum creatinine (sCr) level and urinary output (UO). 27 ml/kg/hr to less than 1 to 2 ml/kg/hr. Causes of oliguria in the postoperative period are conveniently subdivided into prerenal, renal, and postrenal causes. Early diagnosis and treatment for oliguria can help prevent complications such as. Definition and staging criteria of acute kidney injury in adults; Definition and staging of chronic kidney disease in adults;. 5K views 4 years ago Words beginning with 'O' Have we pronounced this wrong? Teach everybody how you say it using the comments below!!. It may be secondary to a multitude of factors. Additionally, of the 55 patients who had data on hypertensive status available, the. Nephritic syndrome is an inflammatory process that is defined as the presence of one or more of the following: [1] Hematuria with acanthocytes; RBC casts in urine; Proteinuria ( 3. 3 oz) per day. 5 ml/kg/hr) is an important marker of renal hypoperfusion and evolving acute tubular necrosis. Oliguria is defined as abnormally small production of urine. 5 ml/kg/h for 24 h, injury UO < 1. Definition. Definición. These causes are classified based on the following categories: 1. 5 micromol/L (0. Enuresis D. However, the Acute Dialysis Quality Initiative (ADQI) has suggested a standardized definition of urine output less than 0. , loss of fluid, inadequate fluid resuscitation or replacement, and bleeding) 2. Oligurie : causes, symptômes et traitement. Anuria, sometimes called anuresis, is non-passage of urine; in practice, it is defined as the passage of less than 100 mL of urine in a day. Polyuria is a condition characterized that there is large volumes of urine (at least 3000 mL over 24 h). oliguria synonyms, oliguria pronunciation, oliguria translation, English dictionary definition of oliguria. It may result from conditions such as fluid loss, urinary obstruction, and kidney dysfunction. Let’s start by reviewing the definition of oliguria and anuria. Oliguria, defined as urine output <0. 1. 3-0. This definition has been refined over the past decade, resulting in the most current Kidney Disease: Improving Global. The oliguria definition was stated in 81. We planned to perform meta-analysis when three or more studies reported on the association of intraoperative oliguria (any definition) with postoperative AKI. Have we pronounced this wrong? Teach everybody how you say it using the comments below!!Looking to study English? Get the best deals on the best English cour. An infection of the urinary tract, such as a bladder infection, usually causes it. You have two adrenal glands — one located at the top of each kidney. d. adjective. Oliguria refers to low urine output. Acute or chronic kidney failure, inadequate fluid intake. The prevalence of nocturia < 2 amongst all polyuria patients was 41%, amongst patients with concomitant PC‐DM was 38%, amongst patients with DI was 25%, amongst patients with CKD Grade 3 was 20% and amongst patients with PPD was 44%. Oliguria can be defined as a urine output that is less than 500 mL/day or urine output less than 0. Oliguria is often observed in critically ill patients. Serum electrolytes such as sodium, blood urea nitrogen, and creatinine should be measured to assist in determining the cause of oliguria. Oliguria is the name for a condition in which the volume of urine generated by the body is abnormally low. Oliguria has been defined variably in literature as urine volume ranging from 50 to 500 ml/day. 2. Persoanele care nu mai produc deloc urina se confrunta in schimb cu o afectiune cunoscuta sub numele de „anurie”. cocaine-induced rhabdomyolysis. Pronunciation guide: Learn how to pronounce Vicryl in English with native pronunciation. Oliguria: It is defined as reduced urine output below 400mL/day. Causes are varied and can be difficult to discern. Patients with acute renal failure who had daily urinary volumes >600 ml.