1) nurses are not careful because of their work, often ignoring the patient is being transfused, blood samples from the side of the transfusion, due to the adulteration of the drug, seriously affecting the quality of the results of the test, the emergence of erroneous reports, misleading the doctor's diagnosis and treatment.
2)After blood collection, untimely delivery of the test due to various reasons, room temperature placement before the test, waiting time is too long, will affect the results of blood gas analysis.
3)In the process of blood collection, such as syringes or containers are not clean, the use of tourniquet for a long time resulting in excessive foam in the blood sample, mixing anticoagulant with too much force will cause the escape of high concentration components of the blood cells, blood cells into the serum chemical reaction, resulting in changes in the concentration of other substances and other phenomena resulting in the occurrence of hemolysis.
4)The patient's own reasons can also lead to abnormal test results, for example, in lipid monitoring, some patients are eager to check, the fact that they have eaten breakfast is hidden, or the interval is less than 4~12 hours also asked for the examination, so that the collected blood samples can not produce the true results.
5)Excluding the above human factors, the steady state of biochemical analyzers, biochemical agents and the quality and stability of the calibration products are key factors affecting the quality of biochemical testing. Biochemical agents such as beyond the expiration date or storage temperature higher than 8 ℃ or lower than 2 ℃ will be contaminated, open the lid of the enzyme activity and antibody potency can be used after the time to decline, so that the sensitivity or the working curve changes, such as not in time to correct the experimental error calibration, biochemical test results will occur abnormally.
Biochemical analyzer test results in a short period of time in a large difference, will give the clinician's diagnosis to bring interference. Test personnel on the abnormal results to communicate with clinicians in a timely manner, in the understanding of the patient's condition, the abnormalities of a reasonable analysis, and find solutions.