[21] CHAPTER IX LESSON 3 Flashcards
In medicine, venipuncture or venepuncture is the process of obtaining intravenous access for the purpose of venous blood sampling (also called phlebotomy) or[?].
intravenous therapy
The process for collecting blood from donors is similar to that used for [?]; however, a few additional measures are required for collection of donated blood.
blood sampling
These measures are primarily to ensure patient safety, but also to minimize [?] of a donated blood unit or its derived components, particularly contamination from the skin flora of the donor’s arm.
exogenous contamination
Because of the volume or blood collected and the [?], pathogens can multiply during storage.
length of storage
ensures that the blood products are safe for therapeutic use throughout their shelf life.
Safe collection
Step1. Identify donor and label blood collection bag and test tubes
Disinfect the skin
Step 2.
Select the vein
Step 3.
Disinfect the skin
Step 4.
Perform the venipuncture
Step 5.
Monitor the donor and the donated unit
Step 6.
Remove the needle and collect samples
Ask the donor to state their full name.
Step1
the blood collection bag is of the correct type
Step1
the labels on the blood collection bag and all its satellite bags, sample tubes and donor records have the correct patient name and number
Step1
the information on the labels matches with the donor’s information
Step1
Select a large, firm vein, preferably in the antecubital fossa, from an area free from skin lesions or scars.
Step 2
Apply a tourniquet or blood pressure cuff inflated to 40-60 mm Hg, to make the vein more prominent
Step 2
Ask the donor to open and close the hand a few times
Step 2
Once the vein is selected, release the pressure device or tourniquet before the skin site is prepared.
Step 2
If the site selected for venipuncture is visibly dirty, wash the area with soap and water, and then wipe it dry with single-use towels.
Step 3
(recommended – takes about one minute)
One-step procedure
use a product combining 2% chlorhexidine gluconate in 70% isopropyl alcohol
One-step procedure
cover the whole area and ensure that the skin area is in contact with the disinfectant for at least 30 seconds
One-step procedure
allow the area to dry completely, or for a minimum of 30 seconds by the clock.
One-step procedure