Due to state law, we can not ship this test to NY state.Our iodine urine test offers a simple and convenient testing method to monitor an individual's iodine status in urine dried on a filter strip. Iodine deficiency and excessive iodine levels can both have negative impact to your health, including the development of goiter, hypothyroidism, acneiform eruption, and reduced mental function. This at home urine test is also helpful in determining the effectiveness of iodine supplementation in an individual, as well as tracking treatment progress. It is easy to use and only requires urine collection on a filter strip 2 times a day (first morning and last night void), therefore, eliminating the inconvenient 24-hour collection of urine in a jug. Collection of urine sample can be done either by dipping the strip in urine collected in a cup or by urinating directly on the strip. The urine-saturated filter strips must be dried overnight and sent to the laboratory for iodine and creatinine analysis. Iodine Test FAQ's:How long are dried urine samples stable for?Dried urine collection strips that are stored in a plastic bag are stable for up to one month without refrigeration. How long should I leave my urine sample card out to dry after collection?Urine sample cards should be left out to dry for a minimum of 8 hours before mailing collection. Do I need to change my diet or stop taking supplements before taking this test?For iodine testing, you do NOT need to change your regular diet or supplement regimen, however if you only supplement sporadically or occasionally eat foods high in iodine (ie: seafood, seaweed, dairy products or brazil nuts), it's recommended to avoid them the day before and during sample collection.