Blood coagulation blood tubes → → → ESR tube biochemical control. Note: The blood tube blood collection tubes in the second anyway (with blood when the blood culture taken the highest priority for the third tube), this blood is only the exception of blood. After all the vacuum blood collected blood should be slightly reversed after 1 to 7 times, can not shake.
IV. Vacuum Blood Common Problems and approaches
Vacuum Blood in recent years in clinical blood test new products. Because of its simple, clean, safe, accurate and reliable, are widely used for the hospital. However, in clinical use, various problems from time to time occur, affecting the smooth specimen collection. The following far as we found in the actual operation of the problems, analyze the reasons for its existence and to suggest improvements. In the blood, the still from time to time to observe the blood flow, and to facilitate targeted treatment.
Reasons: the relatively large negative pressure vacuum tube, the initial blood collection, blood flow to bottom of the tube speed collisions can cause rupture of red blood cells, clinical occasionally hemolysis.
Measures: collecting blood samples, the slope-side two-way lancet blood collection needles, so close to the mining vessel wall, blood flow down along the wall slowly, to avoid the rupture of red blood cells caused by a direct hit.
Reason: double lancet blood collection needles side latex sheath thrusts loose or latex sheath, to make way lancet Mifengbuyan. Venipuncture, blood lancet blood collection along the way-side leakage.
Measures: blood checked before and Security tight latex sheath in case of a puncture needle is re-pack the needles to keep it airtight.
3. Poor blood flow
Reason: puncture needle stick or blood collection in the vessel wall is no negative pressure.
Measures: the premise of ensuring the success of vein puncture, adjust the direction of the needle to the blood flow into the mining vessel, if valid, replace the blood collection.
4. Insufficient or excessive blood
Reason: there is inevitably a small number of quality problems, lack of negative pressure within the blood collection or too high.
Measures: (1) from the blood collection syringe needle piercing the rubber stopper at, pumping blood collection and make it a negative pressure air to the blood samples collected enough. Less the original blood volume replacement may also be taken directly to blood vessels. (2) set aside in advance the needle.
5. Puncture needle prolapse
Reason: due to mechanical stretch, especially when blood vessels in many mining.
Measures: a blood vessel taken more time with, pay attention to the effective fixed; replace the mining vessel, the smaller range of motion to prevent the needle prolapse increase patient suffering.