Skip to main content

Please note that this is a beta version of our website. Should you encounter any bugs, glitches, lack of functionality or other problems on the website, please let us know immediately so we can rectify these accordingly. Your help in this regard is greatly appreciated! You can email us.

Login to North West London Pathology – consumables service

If you need a new account or you have a query about your order, please telephone the pathology call centre on 0203 313 5353.

If you have forgotten your password you can reset this yourself. Please click here if you have forgotten your password.

Results Line and Enquiries

0203 313 5353

Vitamin B6

Category Biochemistry
Test background

Vitamin B6 is a water-soluble vitamin which comprises pyridoxine, pyridoxal and their 5-phosphate esters. Pyridoxal 5-phosphate (PLP) is the active co-enzyme form of vitamin B6 required for many reactions of amino acid metabolism. Deficiency may occur in the diet, or due to drugs, eg. isoniazid or penicillamine. Symptoms of deficiency include skin hyperpigmentation, tongue swelling, depression and irritability.

Clinicial Indications

Suspected deficiency in malabsorption syndromes and in patients on parenteral nutrition.

Reference range

See report

Sample & container required EDTA (lavender top)
Sample volume 1 mL
Turnaround time Up to 6 weeks
Notes

Not currently performed in house; this is a referred test.