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  Indian J Med Microbiol
 

Figure 1: Method for determining the insertion depth of tunneled catheter. Four points are marked on the patient's skin during the catheterization. Point A is the insertion point of the needle. Point B is marked at supra – sterna notch. Point C is marked at the midpoint of the sterna length. Point D is marked at the distance between left and right sternoclavicular. The depth of the catheter is determined by adding the two distances from Point A to Point B and from Point B to Point D

Figure 1: Method for determining the insertion depth of tunneled catheter. Four points are marked on the patient's skin during the catheterization. Point A is the insertion point of the needle. Point B is marked at supra – sterna notch. Point C is marked at the midpoint of the sterna length. Point D is marked at the distance between left and right sternoclavicular. The depth of the catheter is determined by adding the two distances from Point A to Point B and from Point B to Point D