What is the last step to complete in the Seldinger Technique?

• A. Remove guidewire
• B. Threading of catheter
• C. Insert guidewire
• D. Remove needle

Answer: (A)

In the Seldinger Technique, the purpose is to safely access a vessel and place a catheter for various diagnostic or therapeutic procedures. The final step in this technique is the removal of the guidewire.

After successfully inserting the guidewire through the needle and into the vessel, the needle is removed while leaving the guidewire in place to maintain access. Subsequently, the catheter is threaded over the guidewire into the vessel, which is a crucial step to ensure that it is positioned correctly for the intended procedure. Once the catheter is properly positioned, it is essential to remove the guidewire to allow for the catheter to function as intended without obstruction.

Thus, removing the guidewire is indeed the last step in this carefully orchestrated process, ensuring that the catheter remains patent and ready for use. This step is critical as it confirms that the access point remains open, and only the catheter is left in place for further use.