But the big VR players are still working out motion tracking. When you look down with a VR headset on the first thing you want to do is see your hands in a virtual space. For a while, we've seen the Leap Motion accessory - which uses an infrared sensor to track hand movements - strapped to the front of Oculus dev kits.
Urine specimens should not remain unrefrigerated for longer than two hours. Aurine specimen that cannot be delivered to a laboratory within two hours should be stored in a refrigerator. The reason for this precaution is that urinesamples undergo chemical changes at room temperature.
Like they said, every lab is different. I work in a good sized hospital lab. Depending on the test, we can keep a urine for 2 weeks. Urinalysis urines are kept for 24 hours and those with chemisty tests such as drug screens, creatinine levels, sodiums are kept for 2 weeks.