Order of Draw Venipuncture and Capillary
What is the order of draw when collecting a capillary puncture?
2)EDTA tubes
3)Tubes with other additivies
4)Serum Tubes
What do blood culture tests detect?
Bacterial or fungal infections
Basilic vein
A patient comes in for a bilirubin test, where should the tube be placed once the test has been done?
An ice slurry
What are five different conditions that PBT would have to make modifications to their site selection?
mastectomy, receiving IV fluids/meds, stroke/diminished sensation, AV fistula, burns, bruising, scarring, hematoma, phlebitis, swelling, recent tattoos, open wounds, and skin infections.
What is the order of draw when collecting a venipuncture?
Blood culture (yellow), Sodium citrate tubes (light blue), Serum tubes (red, orange), Heparin tubes (green), EDTA tubes (pink, purple, white), Oxalate tubes (gray)
When doing a BMP test, what is sometimes required of the patient?
Fasting is sometimes required.
What angle should the needle be inserted when preforming a venipuncture?
30 degrees.
Where should a PBT place a specimen to transfer it to the lab?
Pneumatic tube system
A patient has a cast on their left arm and an IV in their right arm. Where should the PBT preform the venipuncture?
The PBT should have a nurse stop the patient's IV for two minutes and then draw blood from below the IV in the right arm.
A patient received medication through IV. When the medication is at it's peak, why is blood drawn?
It is at the highest level where the medication is working most effectively.
When monitoring therapeutic drugs, what is measured?
The levels of the drug in the blood is measured.
Aaron is getting his blood drawn. The PBT inserts the needle into Aaron's arm and does not see a flash. The PBT begins to move the needle around blindly. What is the correct way to find the vein instead of moving the needle blindly?
The correct way is to move the needle slightly forward and back.
What specimen results when a patient eats foods such as meat and cheese?
A lipemic specimen
Why should a PBT avoid a patient's arm if they have diminished sensation caused by a stroke?
Since the patient cannot feel anything in that arm, they would not be able to tell the PBT if they have shooting pain or tingling due to the needle hitting a nerve or artery.
What are tan-topped tubes free of?
Lead
What is the difference between hemoconcentration and hemolysis?
Why is drawing from the leg or foot the last resort?
There is a big risk for thrombosis and infection.
Is carotene an analyte that needs to be protected from light, kept cold, or kept at body temperature?
Protected from light
Name four different special considerations a PBT might need to look for before a blood draw.
Small/fragile veins, iatrogenic anemia, obese patients, cognitive impairment or mental health disorders, seizures, syncope
A patient is getting their blood drawn. The PBT starts by filling a royal blue-topped tube. The next tube gets thrown away after a small amount of blood is drawn. Why does this happen?
The tube that gets thrown away is a discard tube. Discard tubes are used to ensure that no additives from the royal blue tube will be carried over to the next tubes.
A serum separator tube (red, orange, or tiger top). Heparin tube (green) may be used for STAT testing.
What is the difference between a blown vein and a collapsed vein?
A blown vein is when the needle punctured straight through the vein. A collapsed vein is when the vein collapses against the bevel.
Mild cases of hemolysis may cause what color to appear?
An orange tint
Emily is going to get her blood drawn, but has a fear of needles. The PBT tells Emily that there is nothing to be afraid of and tries to trick her when drawing her blood. Is this what a PBT should do when a patient says they have a fear of needles?
No, tricking the patient will only increase their fear. A PBT should acknowledge their fear and suggest they look away during the procedure, but still walk the patient through what they are doing.