TPMT (Thio Purine Methyl Transferase) Gene, in Howrah

Fasting and dietary instructions:

No fasting is required for this test. However, as a general precaution, avoid alcohol and a heavy, fatty meal the evening before any blood test. These can temporarily alter several commonly tested markers even in tests that do not require strict fasting.

Medication guidance:

Do not take iron supplements, vitamin B12, or folate tablets on the day of the test , these can temporarily normalise blood count values in patients with deficiency, masking the diagnosis. If you are on anticoagulants (blood thinners), inform the phlebotomist before the blood draw.

What to bring:

Bring your prescription, a government-issued ID, and your OPD insurance details. Inform the phlebotomist of any recent illness, active infections, allergy to latex, or history of fainting during blood draws , so appropriate care can be taken during the procedure.

Timing:

For most blood tests, a morning appointment after overnight fasting gives the most standardised results. If your test does not require fasting, a morning slot is still preferable as it minimises the influence of the day's food intake and physical activity on marker levels.

When does a doctor order TPMT (Thio Purine Methyl Transferase) Gene?

Doctors order TPMT (Thio Purine Methyl Transferase) Gene both reactively , when you have symptoms that need investigation , and proactively, as part of preventive health monitoring. The test result provides measurable data that guides decisions about medication, lifestyle changes, specialist referral, or further diagnostic investigation.

Who should get TPMT (Thio Purine Methyl Transferase) Gene done?

TPMT (Thio Purine Methyl Transferase) Gene is usually offered as part of a pharmacogenetic panel before starting thiopurine drugs used in cancer, inflammatory bowel disease, or autoimmune conditions. Your doctor may order it if you had severe blood count drops or unexpected side effects from these medicines. Adults above 30 benefit from including TPMT (Thio Purine Methyl Transferase) Gene in a periodic preventive health panel. People with chronic conditions such as diabetes, hypertension, or autoimmune disease, those on long-term prescription medication, and individuals with a relevant family history should have this test at the frequency their doctor recommends.

What happens after the results are ready?

After receiving your results, discuss them with your doctor before making any decisions about medication or lifestyle changes. GetVisit stores your report digitally in your health profile, linked to your history of previous tests. This longitudinal view allows your doctor to assess trends over time , often more informative than any single result in isolation.