During a venipuncture, some blood flows into the evacuated tube and then stops. What may be causing this to happen? A) Any of these B) The needle is too close to a valve. C) The needle might have slipped out of the vein. D) The tube may be expired.

When obtaining a blood specimen using a butterfly setup and a syringe, why is it important to avoid pulling back on the plunger too hard or fast? A) To reduce the chance of ecchymosis B) To avoid hemolysis C) To avoid causing patient pain D) To prevent the formation of petechiae  

Will a dermal puncture cause pain to the patient? A) No B) Yes C) Only dermal punctures on fingers will hurt the patient. D) Only heelstick punctures will hurt the patient.

A hematoma may form if the tourniquet: A) is tied too tightly. B) is tied upside down. C) is released before removing the evacuated tubes from the holder. D) is not released before the needle is removed from the vein.  

 In performing phlebotomy on an older (geriatric) patient, the needle may need to be inserted: A) at a shallower angle. B) at a deeper angle. C) parallel to the surface of the arm. D) the same as with younger patients.  

   Which of the following characteristics do the microcollection containers above have in common? A) None of these B) Anticoagulant type C) Light barrier D) Volume collected

A hematoma may form if the tourniquet: A) is tied too tightly. B) is tied upside down. C) is released before removing the evacuated tubes from the holder. D) is not released before the needle is removed from the vein.  

The maximum depth of capillary puncture on a finger is A) 1.0 mm B) 2.0 mm C) 3.0 mm D) 4.0 mm

What is the maximum allowable volume of blood that can be collected in one dermal puncture on a 2.2-lb infant? A) 0.5 mL B) 2.5 mL C) 0.25 mL D) 5.0 mL

Iatrogenic anemia is: A) caused by drawing more than the maximum amount of blood on an infant. B) hereditary anemia. C) not possible on outpatient collections. D) caused by performing venipunctures on infants.