Which of the following tests can be run using a light blue collection tube?

Correct answer: B
A. Place the left electrode on the most distal portion of the left limb, and place the right electrode on the most proximal portion of the right limb: The left limb is amputated, so electrodes cannot be placed on the distal portion of the left limb; the right limb's electrode should be placed according to standard practice.
B. Place the left electrode on the most distal portion of the left limb, and place the right electrode on the right groin: For an amputation, the electrode for the absent limb can be placed on the corresponding part of the trunk (such as the groin) to obtain accurate readings.
C. Place the left electrode on the left mid thigh, and place the right electrode on the right mid thigh: With an above-the-knee amputation, placing electrodes on the mid-thigh of the amputated side is not feasible; placement should follow appropriate protocol for the missing limb.
D. Place the left electrode at the most proximal portion of the right limb, and place the right electrode at the most distal portion of the right limb: This does not accommodate for the left limb amputation and does not follow standard electrode placement practices.

A. Reaching over the field: Reaching over a sterile field can contaminate it by introducing microorganisms from outside the sterile area.
B. Maintaining a 1-inch border around the edge of the sterile field: Maintaining a 1-inch border is a standard practice to ensure that the edges of the sterile field are not contaminated.
C. Holding all sterile articles at waist level: Holding sterile articles above the waist level is the recommended practice to prevent contamination. Holding them at waist level is considered acceptable as long as the items do not touch non-sterile surfaces.
D. Facing the sterile field: Facing the sterile field while working is part of maintaining sterile technique, as it ensures that you do not accidentally move toward the sterile field and contaminate it.