Pay more Attention to Four-inspection Work of Blood Cell Analyzer

Operators should pay more attention to four-inspection work of blood analyzer. And the specific description is as follows:

The blood cell analyzer known as the blood cell analyzer, blood analyzer is commonly used in the medical field, medical devices, and the use of the blood cell analyzer greatly improve the quality and efficiency of clinical blood tests. However, this type of high-tech medical devices in the identification of blood cell morphology and structure is not perfect, currently available only as a whole blood cell analysis sifted means. Must also be met in doubt, review of blood under the microscope piece after confirmation, amendment or supplement to issue a report. Otherwise, it is easy to cause misdiagnosis. Standard of review, the existing textbooks and operational procedures of the medical examination are not explicitly discussed. To this end, we practice and experience, combined with the literature at home and abroad, its standards, content, and methods for preliminary study.

Review the contents of the

Many people think that the review is for leukocyte classification, it is not true. The review should include observation of the morphology of the red blood cells, white blood cells and platelets; estimated platelet or white blood cell count (confirmed with the instrument given data are consistent); observe whether platelet aggregation, or red blood cell aggregation as well as any special form of abnormal cells and parasites.

Review the standard

Want to review the case, so far there is no unified standard, it was suggested that as long as the blood cell analyzer gives warning signal (FLAG), should review, this practice is a bit too wide to grasp its scope. For example, a traumatic acute hemorrhagic patients, blood analyzer gives red blood cells and hemoglobin low signal, it does not necessarily have to review the blood film. Another example is often in the course of treatment for patients with hematology tests often do not have every time review. Recommended that each laboratory should be self-imposed review of the parameters, the histogram or scatter plot; appear blood cell analyzer run prompt signal or explanatory prompts signal, etc., are to review one of the conditions, but in the exposition of the blood film review standards be considered altogether blood cell analyzer status and the patient's condition.

Review

First observed with low magnification or high magnification, the blood tablets and cell distribution, whether platelet or red blood cell aggregation (clusters, piles), tail whether the large piles of abnormal cells; continue oil lens in the smear The medium thickness Department browser blood slides, careful observation of the morphology of the red blood cells, white blood cells and platelets, and to estimate the quantity. If the report consistent with the observed results with the instrument, and not require any additional testing, the results can be measured by the instrument issued the report.

Such as anemia or other blood disease, the red blood cell count and related indicators (such as MCV, MCH, MCHC), red blood cell volume distribution width (RDW), histogram or scatter plot abnormal Emphasis was placed on the size of red blood cells, morphology of inclusion, coloring, size, consistency, and presence of nucleated red blood cells, etc.. If abnormal, should be described and reported. Blood in vitro storage too long or smear when other technical reasons, and sometimes the local area of ​​the blood spots may appear fake target-shaped red blood cells, lip red blood cells and leave spherocytosis, testing often lack the experience will be their when really shaped red blood cells. The most simple method of identifying Browse other regions of the smear, and if it is really shaped red blood cells, the entire film (instead of individual regions) can be seen in the same exception.

Review

Personnel engaged in the review of blood films must be professionally trained basic and clinical knowledge of blood cell morphology, and very familiar, especially familiar with the various histograms, scatter plots of normal and abnormal pattern of blood cell analyzer, and abnormal pattern significance interpretation and assessment of personnel.

Review by first carefully read the given parameters of hematology analyzer, histograms, scatter plots and prompt signal. Hematologic abnormalities that may exist or technical impact factors have an initial impression. Combined with the patient's clinical situation (including the initial diagnosis, etc.), to determine the review focus.

Thoroughly mixed blood as soon as possible to push into the blood slides and stained. Skin puncture blood the EDTA anticoagulant smear Unlike direct smears are some differences in cell morphology; addition, most of the anti-clotting in vitro saved some time will have an impact on cell morphology.

Article : From Perlong medical (http://www.pl999.net/)

Attention:If you want to copy, please attach the website.