Thyroid Profile (T3, T4, TSH)
One blood sample explains unexplained tiredness, weight change and hair fall — no fasting needed.
The thyroid is a small gland in the neck that sets the body's idle speed — how fast you burn energy, how warm you feel, how your heart paces itself. The thyroid profile measures the two hormones it makes, T3 and T4, alongside TSH, the pituitary's signal that tells the gland to work harder or ease off. Because TSH rises when the thyroid underperforms and falls when it overworks, the three numbers read together reveal not just whether something is off, but in which direction and roughly how much.
Thyroid trouble is common — particularly in women — and its symptoms are easy to blame on age, stress or a busy household, which is exactly why a simple test settles the question. Here the sample is drawn and processed in the same building, most routine reports come the same day, and Dr. Khanna reads the result in the context of your symptoms rather than leaving you to interpret three numbers off a printout.
Who should consider this
- Tiredness that sleep does not fix, especially with feeling cold when others are comfortable
- Weight gain or weight loss that does not match your eating and activity
- Hair fall, dry skin or constipation that has crept in over months
- Palpitations, tremor, anxiety or sweating that appeared without an obvious reason
- Irregular periods, or difficulty conceiving — thyroid balance affects both
- Anyone already on thyroxine tablets, who needs the dose checked periodically
- A family history of thyroid problems, which raises your own likelihood
How to prepare
No fasting needed — morning sample preferred
- You can eat and drink normally before this test; fasting is not required
- Come in the morning if you can — TSH varies through the day and morning samples keep your results comparable over time
- If you take thyroxine (Eltroxin/levothyroxine and similar), ask us when you book whether to take the day's dose before or after the sample
- Carry any previous thyroid reports so the trend can be read, not just one value
What happens at the clinic
It is a single blood draw from the arm — a minute or two in the chair, no more. There is no special positioning or waiting around; you can head straight to work or back home afterwards. The sample is processed in our own laboratory rather than being sent out, which is what makes same-day reporting possible for routine profiles.
Your report, and what happens next
Most routine thyroid reports are ready the same day. If the numbers are off, Dr. Khanna explains what they mean in your case — a mildly raised TSH in an otherwise well person is handled very differently from a clearly underactive gland with symptoms. If you are started on treatment or a dose is changed, expect a repeat test in about six to eight weeks, because the pituitary takes that long to reflect the new dose.
What it costs
The price depends on the panel: TSH alone costs less than the full T3-T4-TSH profile, and adding antibody tests or combining thyroid with a wider check-up changes the figure again. Bundled testing usually costs less than the same tests done separately on different days.
Call +91 73148 55445 for today's rate — it takes a minute and there are no surprise charges. If you may need home collection, ask when you call; we arrange it when staffing allows.
Common questions
Do I need to fast for a thyroid test?
No. Food does not meaningfully affect T3, T4 or TSH, so you can eat normally. A morning sample is still preferred because TSH naturally drifts through the day, and testing at the same time keeps your reports comparable.
I take a thyroid tablet every morning. Should I take it before the test?
Timing can nudge the T4 value, so tell us when you book and we will advise for your case — often the sample is taken first and the tablet swallowed straight after. Whatever you do, keep it consistent from one test to the next.
How often should thyroid levels be checked if I am on treatment?
After any dose change, about six to eight weeks later — sooner tells you nothing, because the body needs that long to settle. Once the dose is stable, most people test every six to twelve months, or earlier if symptoms return.
Can thyroid problems really cause weight gain?
An underactive thyroid slows the body's energy burn, so gradual weight gain with tiredness, cold intolerance and dry skin fits the picture. But thyroid trouble is rarely the whole story behind large weight changes, which is why the test is worth doing — it either confirms a treatable cause or rules it out.
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