The ed physician inserted a central venous catheter into the pt's right groin.The distal line had blood return and flushed without difficulty.However, the medial and proximal lines would not draw blood back, but could be flushed without difficulty.The physician removed the central venous catheter and replaced with a new catheter.All lines of the new catheter had a good blood return and flushed with ease.Attempts to flush the medial and proximal lines of the central venous catheter that was removed still could not be flushed.(b)(6).
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