Collection of blood
Introduction:- Blood has to be tested in most of the blood-related disorders, metabolic disorders and various infection.
-There are two ways of blood collection.
1.capillary or peripheral blood.
2.venous Blood
1.Capillary blood collection:-
capillary blood is obtained by pricking the tip of finger, Lobe of ear and from the toe.
-It is to be pricked about 3mm deep. – and pricking point clean the cotton swab.
with (sprit swab) alcohal using sprit After obtaining sufficient amount of blood.
-patient apply slight pressure by using with Sterile Cotton swab.
– for capillary puncture should be used. sterile syringe and lencet
2.venous blood collection
– Large quantity of blood required ; It is obtained from vein.
-generally venous blood collection for vein of arm is used.
-There are five vein passing through arm 1.Cephalic 2.vein Basilic vein 3. Accessory cephalic vein 4.median vein 5.ulnar vein
-all vein are used for Collection of blood. But Some time vein of wrist part and leg can be used.
Requirement
Needle
Syringe
Torniquet
Cotton swab
Tray of water
vail due to to the test.
Needle
-Strelize and sharp needle length should be medium. about 20mm for a adults and short about 15mm for children are used.
-Generally disposable needle are recommended.
Syringe:-
Capacity of syninge differt like aml, some, loml 20ml are available
-The size of syninge should be selected on the basis of requirement of blood.
Tourniquet:-
-It is soft rubber tube or belt.
-It Prapplied to an about 3 inches above the elbow.
-Its help the slow of blood flow and make Vein more prominant. so that the puncture. site is selected.
Cottan swab
It is used to apply the disinfectant.
-Tray of water.
water tray should be use in case of reusable syringes.
vail
– Are many type
EDTA
sodium citrate
plain vail
sodium floride
serum vail
-it is used for requirement of test.
procedure.
First of all decide the amount of blood and syringe and vail
-patient should be sit the comfortable places.
-patient of arm put on table.
Aplly the tourniquet and select the prominant vein of the patient.
-used cotton swab for disinfect the puncture site. The cotton swab previsoully soaked in the dis- Infectant.
– needle and syringe check. It is sharp and unblock. and It is moving smoothly pasing air through the syringe.
-air should not be present in syringe.
-Syringe present at the time of blood collection
-Take the syringe in right hand and the point of needle is upper and push, without any hesitation in the center of vein.
-The angle blw skin and syringe should not be more than 30 to 40.
-Then with your left hand slightly pull back piston.
and remove the tornquet and cotton swab. on puncture site and needle are withdraw the slowly.
-The Remove needle and to the syringe and expel the blood in. vail
Thanks
