When you have a piece of code you want to run x number of times, then code within that code which you want to run y number of times, you use what is known as a nested loop. In Python, these are heavily used whenever someone has a list of lists-an iterable object within an iterable object.1  Early exits.f you've done any programming before, there's no doubt you've come across a for loop or an equivalent to it. In Python, they work a little differently. Basically, any object with an iterable method can be used in a for loop in Python.
If the result is abnormal, it is typically followed up with a fasting blood glucose test or a GTT. Glucose blood tests are also used to screen pregnant women for gestational diabetes between their 24th and 28th week of pregnancy.
Most pregnant women have a glucose screening test between 24 and 28 weeks of pregnancy. This test checks for gestational diabetes. The test may be done earlier if you have high glucose levels in your urine during your routine prenatal visits or if you have a high risk for diabetes.