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Please select the tests you would like

All of the tests you select will be taken and reported using one blood sample where possible.

Name of testSelect

Homocysteine + Folate

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Homocysteine: One-step immunoassay using CMIA technology on Architect

Folate: This assay is part of the Haematinic screen

Price: £49.99

Red Cell Folate

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Red cell folate measured by chemiluminescent assay on the Abbott Architect

Price: £85.00

Vitamin A and E

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Vitamin A (retinol) and E (a-tocopherol) are both measured in serum or plasma by the same HPLC assay with UV detection
Price: £39.99

Vitamin B1

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Vitamin B1 (thiamine diphosphate) is measured by HPLC with fluorsence detection
Price: £37.50

Vitamin B12 Profile

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Vitamin B12 profile assesses vitamin B12 status at the time of sample collection. We will use the Active-B12 (holotranscobalamin, holoTC), total serum B12 and methylmalonic acid (MMA) tests for this assessment. The Active-B12 test measures the biologically active fraction of vitamin B12 which is utilised by cells. Serum B12 measures all B12 forms present in blood (active and inactive). Values above our cut-offs for these tests normally suggest good vitamin B12 status. MMA is the functional test (reflects utilization of B12 by tissues/cells) for vitamin B12 deficiency. Elevated MMA concentration can suggest vitamin B12 deficiency or B12 being not utilized well by cells. Please note that MMA can be also elevated independently of vitamin B12 deficiency e. g. in thyroid disease, renal impairment, some genetic conditions, intestinal bacterial overgrowth or hemoconcentration. Antibiotics treatment can lower MMA.

In exceptional circumstances e.g. in view of other results (if requested), issues with sample volumes or highly abnormal results, we may also request plasma homocysteine to further support the assessment of vitamin B12 status.

Price: £89.99

Vitamin B2

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Whole-blood vitamin B2 (flavin adenine dinucleotide (FAD)) is measured by HPLC with fluorsence detection
Price: £37.50

Vitamin B6

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Whole-blood vitamin B6 (Pyridoxal-5'-phosphate) is measured by HPLC with fluorsence detection post derivetisation with a fluourescent probe
Price: £37.50

Vitamin C

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Plasma vitamin C is measured by HPLC with UV detection
Price: £75.00

Vitamin D

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Vitamin D measured by chemiluminescent assay on the Abbott Architect

Price: £39.99

Vitamin K + PIVKA II

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Vitamin K: Reversed phase HPLC with post column in-line chemical reduction and fluorescence detection

PIVKA II: ELISA method for the determination of undercarboxylated prothrombin

Price: £89.99