A blood sugar random test measures the amount of glucose (sugar) in a person’s blood at any random time, regardless of when they last ate. There is no specific preparation required for this test, but it is generally recommended to avoid consuming food or drink (other than water) for at least 8 hours before the test.

The test is typically performed by taking a small sample of blood from a finger prick or from a vein in the arm. The blood sample is then analyzed using a glucose meter or sent to a laboratory for analysis.

The test is commonly prescribed for people who have symptoms of high blood sugar, such as increased thirst, frequent urination, blurred vision, and fatigue. It is also used to diagnose and monitor diabetes, a condition in which the body is unable to properly regulate blood sugar levels.

The reference range for blood sugar is typically considered to be between 70 and 100 mg/dL. However, normal values can vary depending on factors such as the person’s age, sex, and overall health.

It’s important to note that this test is not a definitive diagnosis and it is recommended to consult with a doctor and get a proper diagnosis with clinical examination and other tests.