Because of this, the best, easiest way to pass a blood test is to refrain from drugs and alcohol for a day or two before your test.
The patients will be instructed to avoid eating foods containing nitrate and caffeine and to avoid smoking and exercise 24 h before testing, as well as to refrain from ingesting either food or water for at least 2 h before testing.
During study weeks 4 to 6, mothers were instructed to discontinue use of the provided test baby lotion and to refrain from using other topical products on their baby's skin.
A total of 24 female subjects were recruited from track-and-field or team sport clubs that regularly use repeated sprinting as part of their training and randomly assigned to participate in sub-study 1 or 2. These women were instructed to report for all testing well-hydrated and to refrain from strenuous exercise for 48 h and from intake of alcohol or caffeine for 24 h beforehand.
Although Chinese officials have not joined Western nations in publicly urging Pakistan to refrain from testing, they have condemned India's tests and pointedly restated their opposition to nuclear testing.
Iran has ignored a United Nations Security Council resolution, passed in conjunction with last year's agreement freezing its nuclear program, to refrain from tests of nuclear-capable missiles for eight years.
To minimize the impact of psychotropic medication on cognitive performance, participants were asked to omit taking those 24 hours before testing (31,32) and were asked to refrain from consuming alcohol or caffeine-containing drinks on the day of testing.
In September 1999, and again in June and October 2000, North Korea agreed to refrain from testing long-range missiles... a pledge it has lived up to so far.
Nor has there been any hint that it may be ready to offer concessions: it has made no promise to refrain from testing another bomb or more missiles.
Both the United States and South Korea said they were closely watching the site, and they urged the North to refrain from testing long-range missiles.
Both governments also recently softened their opposition to talks on a treaty banning production of fissile material used to make nuclear weapons.Yet neither has promised to refrain from testing missiles or arming them with nuclear warheads, another American demand.
