How many times should Arturo practice hand hygiene if he draws blood from ten patients?

Hand hygiene is a critical practice in healthcare settings to prevent infections and ensure patient safety. In the scenario of drawing blood from ten patients, each blood draw presents multiple opportunities for hand hygiene throughout the process.

Arturo should perform hand hygiene before he begins any procedure, which would account for one practice. After drawing blood from each patient, it's essential to perform hand hygiene again to minimize the risk of contaminating the next patient. Given that he is drawing blood from ten patients, he should also conduct hand hygiene after each procedure, leading to ten more practices of hand hygiene.

This results in a total of one practice before he starts and ten practices after each of the ten patients for a total of eleven hand hygiene practices for one complete round. However, if he adheres to protocol that requires cleaning hands before assessing each patient and then after each draw, the count effectively doubles, given that he would also need to sanitize his hands between patients.

Thus, for ten patients, he may indeed practice hand hygiene twenty times: once before each draw and once after. Therefore, the correct answer reflects the necessity for thorough hygiene before and after each procedure.