Why do we need to test for anticoagulation of blood endings

Comparison of venous blood and peripheral blood in 4 coagulation items: prothrombin time (PT), activated partial thrombin time (APTT), thrombin time (TT), fibrinogen (FBG) assay as a screening test for coagulation dysfunction, plays an important role in the diagnosis of bleeding disorders, anticoagulation** monitoring, and preoperative examination, and is widely used.

According to the standardization of PT and APTT assays proposed in recent years, including the standardization of sample collection, it is required to use disposable plastic blood collection devices or siliconized glass tube syringes to collect venous blood. Moreover, there are also foreign literatures that propose that venous blood is more suitable than peripheral blood for the detection of coagulation factor aggregation.

However, due to the speed of venous blood testing PT and APTT, it brings inconvenience and trouble to emergency surgery, anticoagulation**, etc. In the past year, there have been reports in the domestic literature that there is no significant difference between the results of venous blood and peripheral blood detection PT and APTT, and it is recommended to use peripheral blood detection, and it is pointed out that the rapid detection of peripheral blood PT and APTT have been widely used in the monitoring of oral anticoagulation**, the monitoring of coagulation function in surgery, catheterization, dialysis and intensive care patients, and the screening of certain coagulation-related diseases.

1: Peripheral blood (two large drops) is negative, and self-test (one drop of blood) with a domestic test strip in Beijing is also negative; Conventional intravenous presence with anticoagulants does not affect the test results. Generally, it takes three months to get rid of drug addicts and.

Heat stroke is a reaction that occurs inside cells in a high temperature environment, causing cells to become sick, which is heat stroke. All the symptoms caused by heat stroke, or all the complications caused by heat stroke, are caused by intracellular reactions and cellular pathologies. In the past, heat stroke was defined as a dysfunction of brain temperature regulation and dysfunction of body temperature regulation.

Now molecular biology has proved that heat stroke is the normal reaction of cells in a high temperature environment, which causes cells to attack the front disease, and modern molecular biology has completely rejected the original definition of heat stroke. Heat stroke causes the heart to stop beating and the brain to stop moving, not because of the function of the heart and brain, but because of the internal high temperature response of all cells in all organs and tissues of the human body. The cells stop working, the person is not breathing, not to mention artificial respiration, it is useless for you to install a breathing pump.

In other words, heat stroke is not a problem of blood thickening and thinning, the cells stop working in a sick state, and no matter how thin the blood is, it is useless.

Therefore, sudden death from heat stroke should not be overly rescued in the absence of fever and other complications. Excessive rescue is tantamount to death. Because no amount of over-rescue can restore the sick cells to normal, they are interfering with the normal natural recovery of the cells!!

This refers to heat stroke.

When doing clinical blood tests, serum (anticoagulant blood is also called plasma) is basically used, and whole blood containing blood cells is not used.

There are many blood samples that we cannot test immediately after collection, and they are generally done in batches, if the blood is agglutinated, it is not conducive to absorbing plasma, so anticoagulation is required.

The most commonly used anticoagulants are, heparin, EDTA, citrate, etc.

When the blood is drawn out, it will coagulate, just like pig blood, and if it coagulates, it will not be used.

Peripheral blood is greatly affected by temperature. Especially in winter, blood circulation is poor, and blood is often collected after the hand is warmed during the examination, otherwise the results are not stable enough. When taking peripheral blood, it is often necessary to pinch the fingers because of the small amount of out, which is easy to mix the tissue fluid into the blood in the process, resulting in abnormalities in some results of blood routine testing.

Venous blood is used for routine blood examination, which has the advantages of less pain during blood collection and puncture, and standardized anticoagulant addition. Especially after using the vacuum blood collection system, although the blood collection volume is slightly larger, it is easy to mix the specimen evenly on the instrument. There are fewer and fewer human influences, making the measurement results more stable and accurate.

A large amount of blood collected may be a disadvantage, but it can be exchanged for the accuracy and stability of the measurement results, which is more valuable for diagnosis and **. Venous blood can be used to obtain more accurate and stable results when testing routine blood, but peripheral blood can also be measured by using peripheral blood because it is simple to collect and takes less time. Hailifu hematology analyzer can be detected by peripheral blood and venous blood, and can be selected according to the needs of different units and individuals.

If tested within a few days, it can be placed in a 2-8 freezer, and if it is stored, it can be stored in a -20 low temperature freezer.

Quality control before testing and analysis is the key to ensure the quality of routine blood testing.

A large number of experimental studies have shown that the blood sample taken from venous blood is the most reliable specimen, the accuracy and repeatability of finger peripheral blood are poor, and the white blood cell count is obviously high, and the platelet count is low, so venous blood should be used in routine blood testing, especially when using a hemocytometer.

The peripheral blood of EDTA anticoagulation should be measured at least 15 minutes later, because during this time, some platelets in the blood sample have temporary aggregation, which can make the platelet count falsely decrease, which not only affects the accuracy of other platelet indicators, but also easily causes the red blood cell count to increase. Platelet and white blood cell volume distribution histograms may also be abnormal when tested immediately after blood is taken. Pre-diluted specimens should generally be tested within 10 minutes of specimen preparation, and if cell stabilizers are added to the diluent, they should not be stored for more than 4 hours.

Hello: Anticoagulant effect test platelet count 69 - low. A review is recommended.

Others are not clinically significant.

Pregnancy itself can have partial changes in the blood.