Travel in the Saada region of northern Yemen is strongly discouraged because of the risk of violent civil unrest. Travel to the eastern parts of the country (Ma'rib, Shabwah, Hadramawt) and the south (Aden, Abyan, Al-Bayda') is also inadvisable because Al-Qaeda is active in some of these areas.
Report Abuse. No drug screens are done separately. Your doctor will not test for illegal drugs unless you ask him to. A CBC stands for complete blood count which has to do with your blood cells not drugs.
Blood drug tests detect the presence of the actual drug in your blood and not drug metabolites created by your body as in the urine drug test. A blood drug test is relatively rare and is very costly to for the tester to administer. blood drug test takes a look at your bodies contamination at the point in time of your test only. The blood drug test is most often used to determine the presence of current health issues such as nicotine, diabetes, HIV/AIDS, cholesterol levels, hepatitis and other things of concerning overall health.