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Needlestick injuries may also occur when needles are exchanged between personnel, loaded into a needle driver, or when sutures are tied off while still connected to the needle. Needlestick injuries are more common during night shifts [ 14 ] and for less experienced people; fatigue, high workload, shift work, high pressure, or high perception of ...
Smaller veins may collapse as a consequence of too much suction being used when pulling back against the syringe's plunger to check that the needle is in the vein. This will pull the sides of the vein together and, especially if inflamed, they may stick together causing the vein to block.
The goddess Chinnamastā squirting blood. Blood squirt (blood spurt, blood spray, blood gush, or blood jet) is a projectile expulsion of blood when an artery is ruptured. Blood pressure causes the blood to bleed out at a rapid, intermittent rate in a spray or jet, coinciding with the pulse, rather than the slower, but steady flow of venous bleeding.
The cause is typically a head injury that results in a break of the temporal bone and bleeding from the middle meningeal artery. [4] Occasionally it can occur as a result of a bleeding disorder or blood vessel malformation. [1] Diagnosis is typically by a CT scan or MRI scan. [1]
The problem is that the walls of the veins are thin compared to those of the arteries. The AV fistula is the solution for this problem because, after 4–6 weeks, the walls of the veins become thicker due to the high arterial pressure. Thus, this vein can now tolerate needles during hemodialysis sessions.
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Pressure on the carotid artery can also cause vagal tone induced bradycardia, which can eventually stop the heart. Other dangers in use of a constricting method include rhabdomyolysis, which is a buildup of toxins below the pressure point, which if released back into the main bloodstream may cause kidney failure. [citation needed]
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