acute renal failure
Start with the big picture
AKI is grouped by where the problem arises: reduced renal perfusion (prerenal), injury within the kidney (intrinsic), or obstruction to urine flow (postrenal). The lesson outlines diagnostic criteria and KDIGO staging, then connects common causes—including sepsis, heart failure, nephrotoxic medicines, and urinary obstruction—to relevant clinical and laboratory clues. It also introduces practical priorities: prevent avoidable kidney injury, address volume and offending agents, and adjust medicines for renal function. For severe cases, the lesson reviews indications for renal replacement therapy and clarifies the limited role of diuretics and other proposed agents. These principles support structured recognition and management while emphasizing monitoring and supportive care.
What you'll learn
- Identify the diagnostic criteria used to recognize acute kidney injury.
- Distinguish prerenal, intrinsic, and postrenal causes of AKI.
- Interpret KDIGO stages and selected laboratory patterns in AKI.
- Describe prevention and initial management priorities, including medication review.
- Recognize indications for renal replacement therapy and limits of diuretics.
Continue your study
Work through the complete notes and reinforce the topic with the study tools available in the full lesson.
