An acid-base disorder means the blood has become too acidic (acidosis) or too alkaline (alkalosis). Your lungs and kidneys normally keep blood pH within a very narrow range, the lungs by breathing off carbon dioxide and the kidneys by excreting acid and conserving bicarbonate.
It is not a disease in itself but a sign that something else is wrong, such as kidney failure, uncontrolled diabetes, severe diarrhoea, vomiting or lung disease. Treatment is aimed at that cause.
Symptoms
- Fast, deep breathing in metabolic acidosis
- Tiredness, weakness and poor appetite
- Nausea or vomiting
- Confusion or drowsiness when severe
- Muscle cramps, twitching or tingling in alkalosis
- Palpitations, because potassium often shifts at the same time
- Often no symptoms at all in mild chronic forms found on a blood test
Causes and risk factors
Metabolic acidosis arises when the body makes too much acid (diabetic ketoacidosis, lactic acidosis from shock or sepsis, some poisonings), loses bicarbonate (prolonged diarrhoea, renal tubular acidosis) or cannot excrete acid (chronic kidney disease). Metabolic alkalosis usually follows vomiting, diuretic tablets or hormone excess. Respiratory acidosis comes from under-breathing, as in severe COPD or sedative overdose, and respiratory alkalosis from over-breathing due to anxiety, pain, pregnancy or altitude.
How it is diagnosed
- Blood gas analysis: A small arterial or venous sample gives pH, carbon dioxide and bicarbonate within minutes and shows which type of disturbance is present.
- Electrolytes and anion gap: Sodium, chloride and bicarbonate are used to calculate the anion gap, which narrows the list of causes of acidosis.
- Kidney function, glucose, lactate and ketones: These identify kidney failure, diabetic ketoacidosis or poor tissue oxygen supply.
- Urine pH and electrolytes: Help to separate kidney causes, such as renal tubular acidosis, from gut losses.
Treatment options
- Treating the cause: Insulin and fluids for ketoacidosis, antibiotics and circulation support for sepsis, stopping an offending drug, or breathing support for respiratory failure.
- Oral sodium bicarbonate: Used long term in chronic kidney disease when bicarbonate stays low, because correcting it may protect bone, muscle and kidney function.
- Intravenous fluids and potassium: Saline and potassium chloride correct most alkalosis caused by vomiting or diuretics.
- Dialysis: Removes acid rapidly in severe kidney failure or certain poisonings such as methanol or ethylene glycol.
When it is urgent
Rapid or laboured breathing, new confusion, drowsiness, persistent vomiting, or feeling very unwell with diabetes and high sugars need same-day emergency assessment where you are. Severe acidosis can be life-threatening within hours and must never wait for a trip.
Travelling to Türkiye for treatment
Acute acid-base problems are emergencies and are treated in the nearest hospital. Travel only makes sense for a stable, chronic problem, for example a planned nephrology work-up of persistently low bicarbonate or suspected renal tubular acidosis, or a second opinion on chronic kidney disease. Ongoing bicarbonate treatment and blood monitoring then belong with your doctor at home.
Send your reports, scans and a short history and a Clinic-Y coordinator replies within 24 hours with suitable teams and written, all-inclusive proposals side by side. Reviewing your case is free.
الأسئلة المتكررة
Can diet fix an acid-base disorder?
A diet rich in fruit and vegetables lowers the acid load a little in chronic kidney disease, but it cannot correct a significant disturbance. Alkaline water and similar products have no proven effect on blood pH.
Is low bicarbonate on my blood test dangerous?
A mildly low value is common in kidney disease and is usually managed with tablets. A very low value, or one that appears suddenly, needs urgent assessment.
Will I need dialysis?
Only if the cause is advanced kidney failure or a poisoning. Most people are treated by correcting the underlying illness.