Release tornicate to arm tightly and inj.take 30 degree push the needle or slowly put the quantity blood

Depending on sample ABG given to femoral artery vein and normally sample given to vein 

Identify a vein and clean the area  insert a small hollow needle into the vein

Vein through and depend tha sample  of patient

Through vein and depend the sample to patient 

Identify a vein and clean the area off with an alcohol wipe. Insert a small, hollow needle into the vein. You should see blood coming through the needle and into a collection tube or syringe. Remove t...read more

depends on sample... and normally we should take blood sample through vein

Vein through