If you are not the one who inserted the line, it is recommended to look for the insertion documentation record or device placement information, including xray results for tip confirmation to determine what kind of catheter it is.
Rutherford's gold foil experiment provided evidence that There is a dense, positively charged mass in the center of an atom Who provided evidence for the existence of a nucleus in an atom?
The nucleus was postulated as small and dense to account for the scattering of alpha particles from thin gold foil, as observed in a series of experiments performed by undergraduate Ernest Marsden under the direction of Rutherford and German physicist Hans Geiger in 1909.