Test Detail
Overview
Interpreting Results
FAQ's

Content created by

Written by
Dr. Betina Chandolia
BDS, MDS - Oral Pathology and Microbiology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Insulin - Post Prandial

(Insulin-PP)
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Insulin - Post Prandial
You need to provide
Blood
This test is for
Male, Female
Test Preparation
  1. No special preparation required

Overview


What is Insulin-PP?

This test is also known as two-hour postprandial or two-hour PPG or two-hour postprandial blood sugar test. This test is done to detect diabetes.


Why is Insulin-PP done?

The insulin postprandial test is done:

  • If you have signs or symptoms of low blood glucose (hypoglycemia) like sweating, hunger, confusion, blurred vision, dizziness, palpitations, and sometimes fainting 

  • In case of suspected type 2 diabetes, polycystic ovarian syndrome, heart disease, or metabolic syndrome 

  • To determine the start of insulin therapy if you are a diabetic 

  • In the case of suspected insulinoma 

  • To detect insulin resistance 


What does Insulin-PP Measure?

The insulin postprandial test measures the levels of sugar in the blood after two hours of having food. If a person has diabetes, it means the body is not able to make sufficient insulin to keep blood sugar in check. This can lead to high sugar levels in the blood which can further lead to serious health problems such as eye and nerve damage. 

This test tells how the body gives a response to sugar and starch after ingestion of a meal.  As the food is digested in the stomach, the levels of blood sugar rise high. In response, the pancreas releases insulin so that the sugar is transferred from the blood to the cells of muscles and other tissues where it can be used as fuel. Ideally, within two hours of intake of a meal, the insulin and blood glucose levels should return to normal. In case, the blood glucose still remains high, there are chances that the person might have diabetes.


Interpreting Insulin-PP results


Interpretations

The normal insulin postprandial levels range between 5.00 uU/mL - 55.00 uU/mL.


Answers to Patient Concerns & Frequently Asked Questions (FAQs) about Insulin-PP


Frequently Asked Questions about Insulin - Post Prandial

Q. How is the blood sample taken?
The healthcare provider takes a blood sample from the arm. The site from where the blood is to be withdrawn is cleaned with a swab of rubbing alcohol. This is then followed by inserting a small needle which has a tube attached to it for collecting blood. Once the sufficient blood for analysis is withdrawn, the needle is removed. The site is then covered with a gauze pad.
Q. Is there any risk associated with the withdrawal of blood sample procedure?
As such there is no risk but in few cases, bruising, bleeding, and infection at the puncture site can be seen. In very few cases, there can be swelling of the vein after the blood is withdrawn.
Q. What are the symptoms of diabetes?
The symptoms of diabetes include frequent urination, unusual thirst, blurred vision, tiredness, repeated infections, and slow healing of sores.
Q. What other tests are advised by doctor along with insulin postprandial test?
The other tests include fasting blood glucose test, HbA1c or glycosylated hemoglobin test, and glucose tolerance test.
Q. What does abnormal levels of insulin postprandial test means?
The increased levels of insulin postprandial are seen in case of insulinoma, type II diabetics, infantile hypoglycemia, hyperinsulinism, obesity, cushing’s syndrome, intake of oral contraceptives, acromegaly, and hyperthyroidism. The decreased levels of insulin postprandial are seen in case of untreated type I diabetes mellitus.
Q. What factors can affect the results of insulin postprandial test?
Factors such as smoking during the test period, extreme stress, eating a snack or candy after meal or before the test, not eating the entire meal, and exercise during the test period can affect the results of insulin postprandial test.
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