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 complete blood count (CBC) is a common test that gives a general picture of your health. A CBC measures the number of red cells, white cells (neutrophils, eosinophils, basophils, monocytes and lymphocytes) and platelets and levels of hemoglobin and hematocrit in your blood.hen your doctor orders a blood test, he or she chooses from a list of chemical studies to be performed in a laboratory on your blood sample. These lab tests can provide important clues about what's going on inside your body.