A detailed assessment of vitamin B12 status, measuring active B12 (holotranscobalamin) alongside full blood count, folate, and ferritin to identify deficiencies, anaemia, or malabsorption issues contributing to fatigue or neurological symptoms.
Markers
Haemoglobin, Haematocrit, Red Cell Count, MCV, MCH, MCHC, RDW, White Cell Count, Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils, Platelet Count, MPV, Ferritin, Folate – Serum, Vitamin B12 – Active.
Special Instructions
Prepare for your test by following these instructions. Take your sample at least 24 hours after any vitamin or mineral supplements. Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed. Do not take vitamin B12 for two weeks prior to this test. If your B12 is prescribed ask your doctor whether to stop.




