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.
A CBC helps your doctor check any symptoms, such as weakness, fatigue, or bruising, you may have. A CBC also helps him or her diagnose conditions, such as anemia, infection, and many other disorders. A CBC test usually includes: 1  White blood cell (WBC, leukocyte) count.2  White blood cells protect the body against infection. 3  If an infection develops, white blood cells attack and destroy the bacteria, virus, or other organism causing it. 4  White blood cells are bigger than red blood cells but fewer in number. Platelet (thrombocyte) count. 2  Platelets (thrombocytes) are the smallest type of blood cell. 3  They are important in blood clotting. 4  When bleeding occurs, the platelets swell, clump together, and form a sticky plug that helps stop the bleeding.