MondayC, D, K |
Medical analysis
TuesdayB1, B2, B6 |
WednesdayBiotin, Pantothenic acid, Niacin |
ThursdayFolic acid, B12 |
FridayA, E, Carotenes |
Contact- us for any custom order or order of express analysis. Call us 021 653 26 50 or contact us.
BLOOD SAMPLE
Fasting
Plasma (preferably heparinized tube, but all coagulants can be used)
Serum (avoid haemolysis)
QUANTITIES
0.5 ml of serum or plasma for a vitamin
1.0 ml of serum or plasma for 2-5 vitamins.
PACKAGING
Unbreakable tubes with watertight closures
Protect from light (vitamin A, carotenes, E, D, K and B2)
Name of patient, attending physician and date of collection
Please attach the order form duly and legibly filled in
SHIPPING
Immediately send the sample to the Institute or freeze the sample at -20 to – 80 ° C and ship it in a refrigerated packaging. Vitamin C: ship the sample frozen at -20 to – 80°C.
Download and complete the order form that you will return with the packed samples as described in the Pre-Analytic tab.
Reference interval
| Vitamin | Femal | Male |
| A | 1061 – 2755 nmol/l | 1061 – 2755 nmol/l |
| E | 16 – 39 μmol/l | 16 – 39 μmol/l |
| Carotenes | 1774 – 5821 nmol/l | 1774 – 5821 nmol/l |
| Folic acid | 7 – 31 nmol/l | 7 – 31 nmol/l |
| B1 | 10 – 53 nmol/l | 10 – 53 nmol/l |
| B2 | 18 – 180 nmol/l | 18 – 180 nmol/l |
| B6 | 6.5 – 69 nmol/l | 10 – 111 nmol/l |
| B12 | 162 – 796 pmol/l | 162 – 796 pmol/l |
| Biotin | 0.3 – 3.8 nmol/l | 0.3 – 3.8 nmol/l |
| C | 26 – 97 μmol/l | 26 – 97 μmol/l |
| Pantothenic acid | 160 – 588 nmol/l | 160 – 588 nmol/l |
| Niacin | 198 – 905 nmol/l | 198 – 905 nmol/l |
| K1 | 0.33 – 2.0 nmol/l | 0.33 – 2.0 nmol/l |
| D | 75 – 175 nmol/l | 75 – 175 nmol/l |
The SVI clinical trial [1] allowed the calculation of the Swiss reference intrevals of vitamins based on the analytical methods of the SVI (HPLC, chemical and microbiological) and according to the international clinical recommendations [2]. Note that for vitamins D, K and B12 the measurements are still in progress.
1. Schupbach, R., et al., Micronutrient status and intake in omnivores, vegetarians and vegans in Switzerland. Eur J Nutr. 2017 Feb;56(1):283-293
2. Geffre, A., et al., Reference Value Advisor: a new freeware set of macroinstructions to calculate reference intervals with Microsoft Excel. Vet Clin Pathol, 2011. 40(1): p. 107-12.
Order
Download and complete the order form that you will return with the packed samples as described in the Pre-Analytic tab above.