Which of the following is the correct procedure for collecting a bloodless skin snip for detecting microfilariae?
a.
Clean the skin with a saline solution, insert the needle horizontally into the skin, and lift it to create a small cone about 1cm in size.
b.
Insert the needle vertically into the skin, creating a small cone about 5mm in size, and then cut off the piece with a sterile razor blade.
c.
Use a razor blade to make a shallow cut on the skin, and then insert the needle diagonally into the cut area to collect the skin snip.
d.
Clean the skin with an alcohol swab, insert the needle almost horizontally into the skin to create a small cone about 2mm in size, and cut off the piece with a sterile razor blade
