Quick question: when was the last time you thanked your liver?
Yeah, I know that sounds ridiculous. But consider this — your liver is performing over 500 different jobs right now as you read this. It's filtering every sip of chai you've had today, processing last night's dinner, manufacturing bile to digest fats, storing iron and vitamins, neutralising that paracetamol you popped for your headache, and cleaning toxins out of your blood. All silently. All without a single complaint.
Until it can't anymore.
The problem with the liver is that it's the strong, silent type. It doesn't scream for help — it whispers. And by the time you actually notice symptoms (yellow eyes, swollen belly, persistent fatigue), the damage is often severe. A Liver Function Test (LFT) catches those whispers before they become screams.
What's in an LFT Report?
An LFT isn't one test — it's a panel of markers. Here are the ones that matter most:
- SGPT (ALT): The most sensitive liver damage marker. When liver cells are injured or inflamed, SGPT leaks into your blood. Normal is 7-56 U/L. If yours is creeping above 40, pay attention.
- SGOT (AST): Similar to SGPT but also found in heart and muscle tissue. Useful when read alongside SGPT. Normal: 10-40 U/L.
- Bilirubin: This is the yellow pigment your liver processes from dead red blood cells. High bilirubin = yellow skin and eyes (jaundice). Normal total bilirubin: 0.1-1.2 mg/dL.
- Albumin: A protein your liver manufactures. Low albumin means your liver's factory output is dropping. Normal: 3.5-5.5 g/dL.
- Alkaline Phosphatase (ALP): Elevated levels can signal bile duct problems or bone issues. Normal: 44-147 U/L.
The Silent Epidemic: Fatty Liver
Here's something that would shock most people: Non-Alcoholic Fatty Liver Disease (NAFLD) now affects nearly 1 in 3 urban Indians. Read that again — one in three. And these are people who barely touch alcohol.
The culprit? Our modern diet. The combination of refined carbs (white rice, maida-based bread), sugary drinks, and zero physical activity causes your liver to start hoarding fat. Your liver essentially becomes a foie gras. And because there are no symptoms in the early stages, millions of young professionals are walking around with fatty livers and have absolutely no idea.
The only way to catch it early? An LFT. If your SGPT is elevated, your doctor might recommend an ultrasound to confirm fatty liver — and at that point, simple diet changes and exercise can fully reverse it.
When You Definitely Need an LFT
- You take painkillers regularly (paracetamol, ibuprofen — your liver processes every single pill)
- You drink alcohol more than occasionally
- You've been told you have "slightly elevated enzymes" in a previous report and never followed up
- You're overweight, especially around the belly
- Your eyes or skin have a slight yellowish tint
- You're on long-term medication (TB drugs, certain antibiotics, statins)
An LFT doesn't need fasting, takes under 3 minutes, and gives you a clear picture of whether your liver is silently suffering. At BookMyPatho, we'll send a trained phlebotomist to your home in Delhi NCR — sample collected, report delivered, and you never have to sit in a clinic queue.
