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What is a major problem associated with catheters through the needle system?
Catheter corrosion
Catheter infection
Catheter embolus
Catheter misplacement
The correct answer is: Catheter embolus
The main issue with catheters that utilize a through-the-needle system is the risk of catheter embolism. This complication occurs when a segment of the catheter breaks off and travels through the bloodstream, which can lead to serious consequences, including vascular occlusion and potential ischemia or infarction of tissues supplied by the affected blood vessels. In the context of catheter embolism, it is crucial to note that the design of the through-the-needle catheter can make it more susceptible to breakage if not handled properly. Factors such as improper insertion technique, excessive friction during manipulation, or patient movement can contribute to this risk. Once an embolus is formed, it can lead to immediate and life-threatening complications, underscoring the importance of careful monitoring and handling of catheters during procedures. The other options, while important considerations in catheterization, do not carry the same level of immediate risk of serious consequences as catheter embolism does in this specific context.