Translate the given Spanish text to English

[Q]: Said length is not required outside the nose, however said dead space is necessary to locate the probe, thereby being essential.
[A]: Con un segmento de 80 cm en su porcion proximal que se desenrosca al final del procedimiento y que se desecha.


[Q]: Methods of preparing the copper compositions are also disclosed.
[A]: Tambien se describen metodos para preparar las composiciones de cobre.


[Q]: [Selected drawing] None.
[A]:
[Dibujo representativo] Ninguno.