Symptoms of Acute Kidney Injury (AKI): Complete Clinical List
Acute Kidney Injury (AKI) symptoms include urinary urgency, swelling, nausea, fatigue and 1 more. Learn which are most common, how they progress over time, and which warning signs require prompt evaluation.
Updated March 27, 2026
The main symptoms of Acute Kidney Injury (AKI) include urinary urgency, swelling, nausea, fatigue and 1 more. AKI is a sudden decrease in kidney function over hours to days, causing accumulation of waste products and fluid and electrolyte imbalances. Pre-renal (dehydration), intrinsic renal, and post-renal (obstruction) causes must be distinguished.
Clinical Context
Symptoms of Acute Kidney Injury (AKI) vary between individuals and may change over the course of the condition. Early recognition allows for timely diagnosis and treatment.
Clinical Pathway
Acute Kidney Injury (AKI) — Full Condition GuideCondition HubAcute Kidney Injury (AKI) — Differential DiagnosisDifferentialAcute Kidney Injury (AKI) vs. Chronic Kidney Disease (CKD) — Comparisonvs.Urinary urgency — Symptom HubSymptomSwelling — Symptom HubSymptomNausea — Symptom HubSymptomFatigue — Symptom HubSymptomConfusion — Symptom HubSymptomFrequently Asked Questions
Symptoms of Acute Kidney Injury (AKI): Complete Clinical List?+
The main symptoms of Acute Kidney Injury (AKI) include urinary urgency, swelling, nausea, fatigue and 1 more. AKI is a sudden decrease in kidney function over hours to days, causing accumulation of waste products and fluid and electrolyte imbalances. Pre-renal (dehydration), intrinsic renal, and post-renal (obstruction) causes must be distinguished.
What are the first symptoms of Acute Kidney Injury (AKI)?+
Early symptoms often include urinary urgency and swelling. These can be subtle at first.
How many symptoms of Acute Kidney Injury (AKI) are needed for diagnosis?+
Diagnosis is based on clinical criteria and does not require all symptoms. Your doctor considers full medical history and test results.
Can Acute Kidney Injury (AKI) be present without obvious symptoms?+
Yes — some presentations can be asymptomatic or mild, especially in early stages.
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