Explain how the nurse tied the pulse band, thank you 10

The purpose of applying a pulse pressure band is to increase the local filling of the vein, which facilitates puncture. If the pressure zone compresses for more than 1 min, the local blood oxygen content can be reduced, and lactate.

increases, pH decreases.

If compression is done for 3 minutes, bilirubin can be given.

Cholesterol, AST, ALP, etc. increased by more than 5%.

The correct operation is to first tighten the pressure band and then observe the direction of the blood vessels, relax the pressure band in time, and then disinfect, and then tie the pressure band tightly before the puncture, and immediately collect blood, the blood collection action is rapid, and the blood is particularly important for detecting the specimen of coagulation, and strive to complete it within 1min.

The compression time of the pressure belt should not be too long or too tight.

If the pressure belt is used for too long, the blood return will be blocked, and the blood vessels will swell, causing capillaries.

The blood pressure and blood flow decrease, resulting in fluid loss. Persistent intravenous hypertension, tissue reflux of fluids and electrolytes.

decreased, increased concentrations of proteins and protein conjugates; Obstruction of blood flow, fibrin.

increased activity; Cells continue to metabolize, so that the metabolite lactate increases, therefore, the use of the pulse pressure belt should be less than 1 minute, after the needle enters the blood vessel, it is advisable to relax the pressure belt.

When using the pulse pressure band, ischemia (hypoxia) occurs, which will lead to a change in the concentration of some components, such as bun at 80 seconds after the pressure pulse, the concentration begins to drop, 120 seconds 20 0 seconds can drop by 4%, and at 240 seconds it returns to normal. After 3 minutes of tying the pulse band, the concentrations of ALB, CA, ALP, AST, FE, CHO and so on can be increased by 5% 10% respectively, and the 3 minutes of bandaging will obviously be more serious than the lack of oxygen for 1 minute, at this time, the anaerobic digestion of sugar increases, lactate increases, pH decreases, and then calcium, magnesium ions are separated from the binding protein and released, and the concentration of the same free drug will also increase, so it is recommended to relax the pressure pulse band (< 1 point) immediately after the needle punctures into the blood vessels, so as not to cause blood stasis, resulting in hemolysis in the blood vessels or changes in some components of the blood. In particular, pulse pressure bands should not be used for the determination of lactate.

Improper tourniquet compression If the tourniquet is tied for too long, water will be transferred from the blood vessels to the tissues, but the macromolecular substances and large particles (cells) cannot be filtered, and the blood will be concentrated. Experiments have confirmed that too much tourniquet pressure or too long hemostasis can enhance fibrillolysis or accelerate platelets.

Activation.

Similar to tying shoes, there are three steps to tie and carry, and only the second step is taken for easy removal.