acute renal failure
Definition
Noun A sudden, severe loss of kidney function, typically occurring over hours or days. This condition is characterized by the kidneys' rapid inability to filter waste products from the blood, leading to a dangerous accumulation of toxins and electrolytes. It is often associated with a specific, precipitating event.
Usage and Examples
- Medical Diagnosis: The term is used by healthcare professionals to diagnose and describe a critical condition.
- The patient was admitted to the ICU with acute renal failure following severe sepsis.
- The doctor explained that the drop in urine output was a sign of acute renal failure.
- Describing a Cause or Association: It is commonly linked to its underlying cause.
- Dehydration from the illness precipitated acute renal failure.
- Acute renal failure is a known complication of this medication.
Advanced Usage
- Clinical Context: In medical literature and practice, the term is often used interchangeably with "Acute Kidney Injury (AKI)," with AKI being the more modern and preferred term that encompasses the full spectrum of the condition, from minor changes in function to complete failure.
- The new guidelines focus on the early detection and staging of acute renal failure, now termed AKI.
Variants and Related Words
- Acute Kidney Injury (AKI): The contemporary clinical term for the same spectrum of conditions.
- Renal Failure: A broader term that includes both acute and chronic kidney failure.
- Azotemia: A related condition referring specifically to the buildup of nitrogenous waste products in the blood, which is a key feature of acute renal failure.
Synonyms
- Acute Kidney Injury (AKI)
- Acute kidney failure
Antonyms / Contrasting Terms
- Chronic Kidney Disease (CKD): A long-term, progressive loss of kidney function over months or years.
- Normal Renal Function: The healthy, expected operation of the kidneys.
Related Phrases and Concepts
- Oliguric phase: A stage of acute renal failure where urine output is significantly reduced.
- Dialysis-dependent: A state where a patient with acute renal failure requires dialysis to filter their blood.
- Prerenal, Intrarenal, Postrenal: The three main categories (based on cause) of acute renal failure: due to low blood flow to kidneys, damage within the kidneys, or obstruction of urine flow from the kidneys.
Noun
-
renal failure associated with burns or other trauma or with acute infection or obstruction of the urinary tract
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