Which of the following blood glucose monitors will need to have a quality control measurement daily?

Choice A Reason:
While informing the patient of the procedure is important, it is not the immediate next step after greeting. The technician should first ensure the patient's safety and comfort before proceeding with the details of the blood draw.

Choice B Reason:
Asking if the patient has a latex allergy is crucial as it directly pertains to patient safety. Many medical supplies, including gloves and tourniquets used during phlebotomy, may contain latex, which can cause allergic reactions in sensitive individuals. Identifying an allergy before any contact ensures that the technician can take necessary precautions to prevent an allergic reaction.

Choice C Reason:
Stating the technician's name to the patient helps build rapport but is not as critical as ensuring the patient's safety. It is a part of good communication and patient care practices but should follow after confirming any potential allergies or other immediate health concerns.

Choice D Reason:
Asking the patient which arm they prefer for the blood draw is a part of the procedure that involves patient preference and comfort. However, this should come after ensuring there are no allergies that could lead to complications during the draw.

Choice A reason:
Using a needle at a 45° angle does not typically result in collapsing the vein. A collapsed vein is more likely due to excessive vacuum pressure from the tube, a very small or fragile vein, or the tourniquet being too tight.

Choice B reason:
At a 45° angle, the needle is more likely to penetrate through the entire depth of the vein, especially if the vein is superficial. This can result in a failed venipuncture because the needle has entered and exited the vein, missing the opportunity to collect blood.

Choice C reason:
While a steep angle like 45° could cause the needle to miss the vein superficially, it is more likely that the needle would go through the vein at this angle rather than merely missing it superficially. A superficial miss is more likely with an angle that is too shallow.

Choice D reason:
Contacting the upper wall of the vein alone would not necessarily result in a failed venipuncture. However, at a 45° angle, the needle could easily slip through the vein entirely after contacting the upper wall, especially if the vein is not anchored well.