Blood Draw Flashcards
What items are these for
-gloves
-isopropyl alcohol
-gauze pads
-tape, adhesive bandages
-tourniquet
-needles 21-23 gauge
-hub adapter
-blood collection tubes
These items are for the evacuated tube system ETS
What gauge is most common
21 gauge needle
What type of antiseptic is used for blood cultures
you use alcohol or CHG and then iodine for 30 seconds back and forth
If patient is allergic to alcohol use?
CHG or iodine
Serum is a part of the blood that is collected in a blood draw. What is serum
What remains after the blood clots
Whole blood is collected in some tubes. What is whole blood?
Blood collected mixed with anticoagulants so it does not clot
Why use the syringe method?
If patients have fragile veins that collapse
Why use the butterfly method?
If patients have veins that are not easy to find or are little
How far above site do you place the tourniquet?
3-4 inches
How long can a tourniquet stay on?
No longer than 1 minute bc blood hemolysis after 1 minute
How do you insert the needle?
-Anchor with thumb on non-dominant hand 2 inches below insertion spot
-bevel up
-15-30 angle for arm
-10 angle for hand bc veins are closer to surface
What to do if petechia occurs
-petechia (small red dots)
-continue drawing
Which blood cultures come first
butterfly: aerobic
syringe: anaerobic
Iatrogenic anemia
Blood loss due to repeated venipuncture in short period of time
How much blood can be drawn in 8 weeks from infants? in a day?
-10% in 8 weeks
-1-5% in a day
