Wednesday, July 22nd 2026
There are some blood tests where you are not required to be sober and there are others that require you to not consume anything for a certain period of time before the test.
Following these instructions from your doctor is very important to get an accurate reading of your tests.
What are the blood tests that require you to fast?
There are three main tests that require you to fast, they are the glucose, cholesterol and iron.
According to experts in the field, before taking a test for iron levels you need to fast for 5 hours.
Glucose is another test that requires you to fast for 8 hours.
Because our bodies are different, a certain standard of fasting lipid values is necessary to determine which glucose, cholesterol and iron levels are normal. unhealthy.
When you are sober, your blood levels return to normal. Eating or drinking something containing sugar before a glucose test can increase its levels in the blood, giving inaccurate results.
The same goes for blood tests for iron and cholesterol. Experts explain that eating before a cholesterol test results in a 20 to 30% increase in blood cholesterol levels.
A complete chemistry screen gives your doctor a snapshot of your overall health.
Also known as the Chem-20, SMAC-20 or SMA-20, the complete chemistry screen includes 20 different tests ranging from albumin to acid. uric.
Glucose and cholesterol are often included in this list. Preparations for the CBC depend on what your doctor is testing for.
Although some CBCs may not require you to fast, in certain circumstances a doctor may ask you to fast for nine to 12 hours before the test.
However, the CBC allows you to drink water in the morning before the test.
Some medications can cloud the results of the CBC. blood tests, changing the result. Also
For example, blood pressure medications, birth control pills, and some corticosteroids can affect the results of a blood test.
Iron supplements can affect the iron test, anabolic steroids, sulfonamides, and statins can give your doctor a false result.
Source: prizrenpost
