This article or section appears to contradict itself on threshold for daily urine output qualifying as oliguria (variously given as 80-100mL/<400mL/<500mL in intro/Definition section).(May 2021) |
Oliguria | |
---|---|
Other names | Hypouresis |
Specialty | Urology |
Oliguria or hypouresis is the low output of urine specifically more than 80 ml/day but less than 400ml/day. [1] The decreased output of urine may be a sign of dehydration, kidney failure, hypovolemic shock, hyperosmolar hyperglycemic nonketotic syndrome (HHNS), multiple organ dysfunction syndrome, urinary obstruction/ urinary retention, diabetic ketoacidosis (DKA), pre-eclampsia, and urinary tract infections, among other conditions.
Beyond oliguria is anuria, which represents an absence of urine, clinically classified as below 80 or 100 ml/day. [1]
The term oliguria is derived from oligo-meaning "small, little," + -uria, from the Greek word ouron, meaning "urine". [2]
Oliguria is defined as a urine output that is less than 1 mL/kg/h in infants, [3] less than 0.5 mL/kg/h in children, [3] and less than 400 mL [3] or 500 mL [4] per 24h in adults - this equals 17 or 21 mL/hour. For example, in an adult weighing 70 kg it equals 0.24 or 0.3 mL/kg/h. Alternatively, however, the value of 0.5 mL/kg/h is commonly used to define oliguria in adults as well. [4]
Perform ultrasound examination of the kidney to rule out obstructive processes.[ citation needed]
The mechanisms causing oliguria can be categorized globally in three different categories:[ citation needed]
Patients usually have a decrease in urine output after a major operation that may be a normal physiological response to:[ citation needed]
Oliguria, when defined as less than 1 mL/kg/h, in infants is not attributed to kidney failure. [5]
This article or section appears to contradict itself on threshold for daily urine output qualifying as oliguria (variously given as 80-100mL/<400mL/<500mL in intro/Definition section).(May 2021) |
Oliguria | |
---|---|
Other names | Hypouresis |
Specialty | Urology |
Oliguria or hypouresis is the low output of urine specifically more than 80 ml/day but less than 400ml/day. [1] The decreased output of urine may be a sign of dehydration, kidney failure, hypovolemic shock, hyperosmolar hyperglycemic nonketotic syndrome (HHNS), multiple organ dysfunction syndrome, urinary obstruction/ urinary retention, diabetic ketoacidosis (DKA), pre-eclampsia, and urinary tract infections, among other conditions.
Beyond oliguria is anuria, which represents an absence of urine, clinically classified as below 80 or 100 ml/day. [1]
The term oliguria is derived from oligo-meaning "small, little," + -uria, from the Greek word ouron, meaning "urine". [2]
Oliguria is defined as a urine output that is less than 1 mL/kg/h in infants, [3] less than 0.5 mL/kg/h in children, [3] and less than 400 mL [3] or 500 mL [4] per 24h in adults - this equals 17 or 21 mL/hour. For example, in an adult weighing 70 kg it equals 0.24 or 0.3 mL/kg/h. Alternatively, however, the value of 0.5 mL/kg/h is commonly used to define oliguria in adults as well. [4]
Perform ultrasound examination of the kidney to rule out obstructive processes.[ citation needed]
The mechanisms causing oliguria can be categorized globally in three different categories:[ citation needed]
Patients usually have a decrease in urine output after a major operation that may be a normal physiological response to:[ citation needed]
Oliguria, when defined as less than 1 mL/kg/h, in infants is not attributed to kidney failure. [5]