To prevent an injection of air into the vein, which can be fatal, what must the
a. Use a longer plunger than the syringe.
b. Use a shorter plunger than the syringe.
It makes no difference.
d. The plunger must match the syringe.
If latex tubing is used as a tourniquet, how far above the venipuncture site should
it be secured?
a. 1 inch.
b. 2 inches.
d. 4 inches.
Prolonged application of a tourniquet may change the concentration of many blood
components. The maximum period over which a tourniquet should be applied for
a venipuncture is:
a. 1 minute.
b. 2 minutes.
d. 6 minutes.