Final answer:
The most commonly performed tests to diagnose type 2 diabetes or gestational diabetes are the Glucose Tolerance Test (GTT), Insulin Tolerance Test (ITT), and A1C Test.
Step-by-step explanation:
The most commonly performed tests to diagnose type 2 diabetes or gestational diabetes include:
- Glucose Tolerance Test (GTT): This test is done in patients suspected of having diabetes mellitus, but do not show any glucosuria. It involves measuring blood glucose levels after consuming a sugary drink.
- Insulin Tolerance Test (ITT): This test helps to determine the type of diabetes (insulin dependent or independent) by measuring blood glucose levels after administering insulin injections.
- A1C Test: This test measures average blood glucose levels over the past two to three months through blood screening. It is used as an indicator of how well blood glucose is being managed over time.