Prima Vitamin D Test x1
Kimmi: Does this give you an exact vitamin D number?
Jase: No. It sorts a finger-prick blood sample into one of four broad ranges: deficient, insufficient, sufficient or excessive.
Kimmi: Useful as a first check, then?
Jase: That is the idea. It is a screening test, so results should be confirmed and interpreted with a healthcare professional when needed.
About Prima Vitamin D Test
This rapid home test uses a small whole-blood sample to provide a semi-quantitative indication of vitamin D concentration. Its stated measuring range is 10–100 ng/mL.
The manufacturer reports 94.4% accuracy under its test conditions. This does not guarantee the accuracy of an individual result, and the test does not replace a laboratory blood test or clinical advice.
Contents
- 1 test cassette
- 1 dropper vial containing diluent
- 2 sterile lancets
- 1 capillary pipette for blood sampling
- 1 cleansing gauze
- 1 comparison card
- Instructions for use
Follow the supplied timing and comparison card carefully. Speak with a healthcare professional about a result outside the sufficient range, symptoms of concern, or whether a laboratory test is appropriate.
Directions
USE PROCEDURE
- Draw a blood sample using the sterile lancet provided;
- Collect the sample indicated by the black line, using the capillary pipette provided;
- Deposit the collected sample inside the well (S) indicated on the cassette;
- Add 2 drops of diluent and wait 10 minutes before reading the result, comparing the lines obtained with the card provided.
RESULTS INTERPRETATION
Excessive (> 100 ng/mL): No clear lines appear at the test line region (T). You need to consult your doctor.
Sufficient (30-100 ng/mL): The intensity of the test line (T) is equal to or less than that of the 30 ng/mL displayed on the color card.
Insufficient (30-10 ng/mL): The intensity of the test line (T) is darker than the 30 ng/mL line and lighter than the 10 ng/mL line displayed on the color card.
Deficit (0-10 ng/mL): The intensity of the test line (T) is equal to or darker than the 10 ng/mL line displayed on the color card. You need to consult your doctor.
F.A.Q.
What happens if the results reading time is not met?
The test has been carried out correctly when the instructions for use are followed. It includes the reading time and the interpretation of the results shown at the "RESULTS INTERPRETATION" section of the instructions for use.
How to prove that the test worked correctly?
A colored line will appear at the control region (C) on the test device, showing that the test performed correctly. The absence of the colored line suggests to repeat the test with a new device and a new sample.
How to interpret the test if the control and test lines have different intensities?
The color and intensity of the lines do not affect the interpretation of the result. The test has to be considered positive regardless of the color intensity of the test line (T).
BIBLIOGRAPHY
- Grant WB, Holick MF (June 2005). Benefits and requirements of vitamin D for optimal health: a review. Alternative Medicine Review.10 (2): 94–111.
- Moyad MA. Vitamin D: a rapid review. DermatolNurs. 2009, 21:25-30
- Holick MF (March 2006). “High prevalence of vitamin D inadequacy and implications for health”. Mayo Clinic Proceedings. 81 (3): 353–73.
