What is a fasting insulin test?
It measures the insulin in your blood after an overnight fast. It helps doctors assess insulin resistance and how well the pancreas is working.
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On WhatsApp & EmailTest: Insulin - Fasting. Result: A number, reported with the reference range on your report. Price: From 490. Sample: Blood, serum. Reports: Within 12 hours, digital. Fasting: Overnight fasting is mandatory. Home collection: Available across Faridabad; any charge is shown at booking. Lab: NABL-accredited.
Insulin is the hormone that moves glucose from the blood into cells. When cells respond poorly (insulin resistance), the pancreas compensates by releasing more insulin, so fasting insulin can be high long before blood sugar rises. A high fasting insulin with normal glucose can be an early sign of insulin resistance. A very low value alongside high glucose can suggest that the pancreas is not making enough insulin. Doctors often combine fasting insulin and fasting glucose into an index called HOMA-IR, which they calculate themselves. The reference range on your report is the one to follow.
Common reasons are suspected insulin resistance, PCOS, prediabetes or a strong family history of type 2 diabetes, unexplained weight gain, fatty liver, acanthosis nigricans (dark velvety skin patches) and investigation of episodes of low blood sugar.
Fasting insulin has no universal cut-off, and results differ between laboratories and methods. Doctors read it with fasting glucose, HbA1c, lipids and your clinical picture. A single value does not diagnose diabetes or insulin resistance. Please do not change medicines or diet drastically on the basis of a report alone.
In Faridabad, early starts and long physical shifts make a morning lab trip on an empty stomach hard. An early home sample lets you fast overnight, give the sample and eat before work. Keep the digital report on your phone for the doctor's visit.
Fasting insulin is usually read with fasting blood glucose, HbA1c and, sometimes, Insulin PP (two hours after a meal) and C-Peptide. This booking is the fasting insulin test only.
Blood glucose, HbA1c, Insulin PP, C-peptide, lipid profile and the HOMA-IR calculation are not part of this test. Please read the result with your doctor.
Content last reviewed: October 2026
Fasting: Overnight fasting is mandatory for this test. Do not eat or drink anything except plain water until the sample is taken.
Before the sample: Avoid tea, coffee, smoking and vigorous exercise.
Sample: One venous blood draw, processed as serum.
Medicines: Do not stop prescribed medicines on your own. Tell your doctor and the phlebotomist about diabetes medicines or insulin, and ask your doctor whether to take them before the sample.
Booking around shifts: choose an early slot so you can eat before work.
Home collection: Available across Faridabad — Sector 15, 16, 17, 21C, 28, 29, 31, 37, NIT, Neelam Chowk, Old Faridabad, Greenfield, Surajkund Road and Ballabgarh. Any collection charge is shown at booking.
Reports: Digital, within 12 hours of collection.
One test: Insulin - Fasting, from a single blood sample, with a digital report within 12 hours.
Blood glucose, HbA1c, Insulin PP, C-peptide, lipid profile and the HOMA-IR calculation. These are separate orders or calculations.
Your doctor may add a fasting glucose, HbA1c, Insulin PP and C-Peptide for a fuller picture of how your body handles sugar.
Common questions about Insulin-Fasting in Faridabad
It measures the insulin in your blood after an overnight fast. It helps doctors assess insulin resistance and how well the pancreas is working.
It starts from 490 in Faridabad. Home sample collection is available across the city and any collection charge is shown in the booking flow before you confirm. Digital reports are included.
Yes. Overnight fasting is mandatory for this test. You may drink plain water.
Digital reports are issued within 12 hours of sample collection.
It can suggest insulin resistance, where the body needs more insulin to keep sugar normal. It is read with fasting glucose and other tests. Only your doctor can interpret it for you.
It is an index doctors calculate from fasting glucose and fasting insulin to estimate insulin resistance. The calculation is not part of this booking.
Doctors usually read them together, because insulin alone is hard to interpret. Fasting glucose is a separate test.
Fasting insulin is measured after an overnight fast. Insulin PP is measured about 2 hours after a meal to see how well the pancreas responds.
Yes. Choose an early slot when you book, so you can eat soon after the sample and get to work.
Yes, including Sector 15, 16, 21C, 28, NIT, Neelam Chowk, Old Faridabad, Greenfield and Ballabgarh. Any collection charge is shown before you confirm.
Yes. Your sample is processed at a NABL-accredited laboratory in our network. NABL accreditation is granted to individual laboratories after evaluation of their equipment, processes and personnel. It is not a company-wide certification, and HealthVas does not claim to hold accreditation itself.
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