Acute Kidney Injury (AKI): Causes, Symptoms, and Treatment

Are you experiencing less urine output, shortness of breath, swelling in the legs, ankles, or feet, pain in the belly, or pain in the side below the rib cage? If yes, then these signs can indicate a condition known as acute kidney injury (AKI). Untreated AKI causes a rapid, dangerous buildup of waste products, toxins, and fluids in the body, resulting in severe complications like permanent kidney damage, heart/lung failure, or fatal outcomes.

Hence, consult experts at the best nephrology hospital in Kolkata promptly to receive the treatment, preventing further complications.

Read Also: Kidney Failure: Causes, Symptoms & What You Should Know

What is Acute Kidney Injury (AKI)

This kidney injury occurs when the kidneys are suddenly unable to filter waste products from the blood.

This is what really happens:

Your kidneys are like your body's vigilant filtration system, working tirelessly to clean waste from the bloodstream, similar to how a coffee filter separates grounds from the brew.

When AKI happens, the filter suddenly clogs or tears, causing toxins to pile up and overburden the system within hours or days. If unaddressed, this compromised system can lead to serious complications such as permanent kidney damage and heart/lung failure.

Thankfully, with early detection, AKI is often reversible with prompt care; hence, consult the best kidney doctor near you.

What Happens if AKI is Left Untreated?

The following are the consequences:

• Loss of kidney function.
• Fluid buildup in the lungs causes trouble breathing.
• Electrolyte imbalances, such as high potassium levels, irregular heart rhythm, muscle weakness, or paralysis.
• Blood becomes very acidic, leading to nausea, vomiting, and confusion.
• Toxin accumulation can affect the brain, heart, and lungs.

Read Also: 10 Common Symptoms Of Kidney Disease You Shouldn’t Ignore

Is Acute Kidney Injury the Same as Kidney Failure?

No.

Look at the table for a quick understanding of kidney failure vs. acute kidney injury.

Aspect	Acute Kidney Injury (AKI)	Kidney Failure (End-Stage CKD)
Onset	Sudden (hours/days)	Gradual (months/years)
Reversibility	Often fully reversible	Usually permanent
Severity Range	Mild to severe	Total loss of function
Common Causes	Dehydration, sepsis, toxins	Diabetes and hypertension over time
Treatment Goal	Restore the function quickly	Lifelong dialysis/transplant

Causes of AKI

Here are some of the reasons:

• Slow blood flow to your kidneys.
• Direct damage to the kidney.
• Blockage of the kidneys' urine drainage tubes, called ureters.

Factors that can slow blood flow to the kidneys are:

• Loss of too much body fluid.
• Infection with or without sepsis.
• Septic shock.
• Heart failure or heart disease.
• Severe allergic reaction.
• Severe low blood pressure due to taking blood pressure medicines.
• Bad burns.
• Liver cirrhosis or failure.

What Is the Warning Stage of Acute Kidney Injury?

The warning stage of AKI is generally classified as Stage 1.

It is characterized by:

• A 1.5 to 1.9 times increase in serum creatinine from baseline within seven days.
• A reduction in urine output for 6–12 hours.

Any warning signs, such as vomiting or producing little pee, demand immediate investigation for AKI and treatment.

Can AKI Be Reversed With Early Treatment?

The best nephrologist in Kolkata says, yes, it can often be reversed with prompt, early treatment, especially if caught in the warning stage (Stage 1).

AKI Diagnosis

Your doctor may order the following tests for a detailed evaluation:

• Blood tests
• Urine output measures
• Urine tests or urinalysis
• Imaging tests such as ultrasound and CT scans
• Biopsy by removing a sample of kidney tissue for testing

Acute Kidney Injury Treatment in Kolkata

The treatment is based on the cause behind the acute condition, such as:

Intravenous (IV) Fluids

• Balance fluids and electrolytes in your blood.

Diuretics

• Help prevent fluid retention.

Medicines

• Medicines to restore blood calcium levels.
• Potassium binders to keep potassium from accumulating.

Dialysis (Renal Replacement Therapy)

In severe cases, it helps remove poisons and excess fluids from your body while your kidneys heal.

Treating Underlying Causes

Addressing conditions such as sepsis, heart failure, or urinary obstructions through specific treatment methods.

How Long Do Kidneys Take to Recover From AKI?

The recovery depends on:

• The cause behind the condition.
• Severity of the condition.
• Other individual factors.

Mild cases may resolve within a few days to weeks, often within 7 days; however, full recovery can take several weeks or months.

Conclusion

Acute kidney injury can be a potentially life-threatening condition that requires your immediate medical attention. Recognizing the signs early can help avoid severe complications and enhance recovery chances. All you need is to follow your doctor's advice and follow a kidney-healthy diet, such as avoiding canned foods, processed meats, and salty snacks.

Are you looking for the best treatment and management approach for AKI?

You can contact an expert at IRIS Multispeciality Hospital by calling +91 8929579509 and get personalized treatment.

Our Address: 82/1, Raja S. C. Mullick Road, Kolkata 700047 Open: 24x7

Our Experts:

• Dr. Arnab Duari
• Dr. Debabrata Sen
• Dr. Avishek Mukherji