⚠️ Men's Health
Acute Kidney Injury in Nigeria
When the kidneys suddenly stop working — causes, treatment, and recovery
Acute kidney injury (AKI) is a sudden deterioration in kidney function over hours to days. Unlike chronic kidney disease which develops over years, AKI can occur in people with previously normal kidneys. In Nigeria, AKI is common after malaria, diarrhoea, surgery, medications, and obstetric complications. It is potentially reversible if caught early — but can be fatal if missed.
Signs and Symptoms
✓ Dramatically reduced urine output — less than 400 ml per day (oliguria) or no urine (anuria)
✓ Swelling of legs, face, and body from fluid retention
✓ Breathlessness from pulmonary oedema
✓ Confusion or reduced consciousness (uraemia)
✓ Nausea, vomiting, and loss of appetite
✓ Flank pain (in some causes — obstruction or thrombosis)
✓ Dark (cola-coloured) urine after crush injury or severe muscle breakdown (rhabdomyolysis)
When to Seek Help
Dramatically reduced urine outputAny person producing less than 400 ml urine in 24 hours needs urgent hospital assessment.
Fever + reduced urine + confusionPossible severe malaria with AKI or sepsis — emergency.
Any toxin or medication followed by reduced urineUrgent withdrawal of the agent and kidney function assessment.
Post-obstetric complicationAny woman with reduced urine output after childbirth, abortion, or obstetric haemorrhage needs urgent nephrology review.
Tests & Diagnosis
🧪 Serum creatinine (serial measurements)
A rise of >26 µmol/L in 48 hours or >1.5× baseline within 7 days defines AKI. Serial measurements every 12–24 hours in hospital.
🧪 Urine output measurement
Catheter insertion in hospitalised patients for accurate measurement — a basic but crucial monitoring tool.
🧪 Serum electrolytes
Hyperkalaemia (high potassium) is the most immediately life-threatening complication of AKI — can cause fatal arrhythmia.
🧪 Renal ultrasound
Urgently excludes obstruction as the cause — a treatable, reversible form of AKI.
🧪 Malaria rapid test and blood film
In Nigeria, malaria is a common cause of AKI — must be tested in every febrile patient with AKI.
🧪 Urine microscopy
Casts and red blood cells point to specific diagnoses (glomerulonephritis, rhabdomyolysis).
Frequently Asked Questions
Is AKI the same as kidney failure?
AKI is acute kidney failure — a sudden loss of kidney function. Chronic kidney disease (CKD) is a gradual, long-term decline. AKI is potentially reversible; CKD is not. However, AKI can be superimposed on CKD ('acute on chronic'), and repeated AKI episodes accelerate CKD.
Can malaria cause kidney failure?
Yes — severe malaria (Plasmodium falciparum) causes haemolysis (destruction of red blood cells), haemoglobin deposits in kidney tubules, and direct inflammatory damage. Malarial AKI is a medical emergency requiring intensive care and often dialysis. Prompt antimalarial treatment is essential.
Will my kidneys recover fully from AKI?
Depends on the cause and severity. Mild pre-renal AKI (from dehydration) typically recovers fully within days of fluid replacement. Severe AKI from malaria, sepsis, or nephrotoxins may take weeks to recover and may leave residual CKD. Regular follow-up is essential.
Why is gentamicin (an antibiotic) a risk for kidneys?
Gentamicin and other aminoglycoside antibiotics accumulate in kidney tubule cells and cause direct toxic damage. They are still widely used in Nigeria due to effectiveness and low cost. When used, renal function must be monitored daily, dosing must be weight-adjusted, and courses kept short (3–5 days maximum).
Can herbal medicine cause AKI?
Yes — multiple herbal preparations used in Nigeria have been documented to cause AKI and CKD. Aristolochic acid in some plants causes irreversible tubular damage. Traditional preparations used to 'flush the kidneys' can paradoxically destroy them. This is an important and underappreciated cause of kidney disease in Nigeria.