Common problems and emergency measures in the use of vacuum blood collection tubes
Huaxia Ruitai always regards product quality as vitality. Good quality and stability ensure the accuracy and validity of the test data. At the same time, the competitive price makes Huaxia Ruitai's products the first choice in the medical market.
Vacuum blood collection, blood collection, and yellow blood collection are new products used in clinical examinations in recent years. Because of its simple operation, clean, safe, accurate and reliable, it is widely used in various hospitals. However, in the process of clinical use, there are various problems that affect the smooth collection of specimens. The following only introduces the problems we found in actual operation, analyzes the reasons and proposes improvement measures. When collecting blood, we should still observe the inflow of blood from time to time in order to process it.
1. Hemolysis
Reason: The negative pressure of the vacuum tube is relatively large. In the early stage of blood collection, the blood flow enters the bottom of the tube very quickly, and the red blood cells can collide with each other and cause rupture. Hemolysis is occasionally seen clinically
Measures: When collecting blood samples, tilt the two-way blood sampling needle to collect the side needle of the blood vessel so that it is close to the side wall of the blood sampling. The blood flows down the tube wall slowly and slowly to avoid direct impact of red blood cells and cause rupture.
2. Blood leakage
Reason: The latex sheath at the blood sampling end of the two-way lancet is loose or the needle pierces the latex sheath, so that the sealing of the two-way lancet is not tight. During venipuncture, blood leaks along the end of the lancet
Measures: Check and tighten the latex sheath before blood sampling. If there is a needle stick, the needle should be reset to maintain air tightness.
3. Unsmooth blood flow
Reason: The needle sticks to the blood vessel wall or there is no negative pressure in the blood vessel.
Measures: Under the premise of ensuring the success of venipuncture, adjust the direction of the needle to make blood flow into the blood collection tube. If it is invalid, replace the blood collection.
4. Insufficient or excessive blood sampling
Reason: Some of them inevitably have quality problems, and the negative pressure in the blood vessels is insufficient or too high.
Measures: 1. Pierce the syringe needle from the rubber stopper of the blood vessel to extract the air in the blood and form a negative pressure on the blood sample. If the original blood volume is low, the blood collection can be replaced directly. 2. Pull out the puncture needle in advance
5. Pull out the puncture needle
Reason: mechanical pulling, especially in blood collection from multiple blood vessels.
Measures: When taking more blood at one time, pay attention to effective fixation; when changing blood, the range of action is small to prevent the needle from falling off and increase the patient's pain
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