A B12 test may be ordered separately or with other screening tests.
Fasting is not necessary for a B12 blood test. You can have this test done at any time of the day, with or without food.
A high Vitamin B12 level on a blood test could indicate various conditions such as liver disease, certain cancers, kidney failure, or excess supplementation. It is important to consult with a healthcare provider for proper evaluation and interpretation of the results.
Fasting is generally not required before a B12 blood test. However, it is always best to follow your healthcare provider's specific instructions when preparing for any type of blood test.
The SR B12 blood test measures the levels of vitamin B12 in your blood. It is used to diagnose vitamin B12 deficiency, which can lead to symptoms like fatigue, weakness, and nerve problems. Low levels of vitamin B12 can be caused by conditions like pernicious anemia, malabsorption issues, or a diet lacking in B12-rich foods.
B12 deficiency
Fasting is generally not required for B12 and folate blood tests. These tests can be done at any time of the day without fasting.
low in B12 or iron
High B12 levels in a blood test can be caused by conditions such as liver disease, kidney failure, or certain types of cancer. Excessive intake of B12 supplements or vitamin injections can also lead to elevated levels in the blood.
Normal level should be between 134-675 pmol/L as per a hospital lb test sheet
Vitamin B12 deficiency is when there is a low blood level of vitamin B12. If it is left untreated, it can cause damage to nervous tissue. There is a wealth of information regarding B12 deficiency on the Wikipedia site.
Without B12, red blood cell production is greatly reduced