The doctors refer the Salicylate blood test to check the presence of Salicylate intoxications in blood. People that are suffering from abnormal breathing, nausea, vomiting, vertigo, diarrhea and increased heart rate, need to do this blood test. The causes may appear in the human body for an overdose of aspirin. The high quantity of aspirin drug may initiate some severe damages like, agitation, confusion, and restlessness that may take the person into a coma as well. Therefore, the health experts refer the blood test that determines the actual level of Salicylate drug in human's body. The test can be accomplished in many ways like; the physician can take a blood sample, urine sample or plasma sample.