Phlebotomy: Complications of Venipuncture

osteomyelitis

if a bone is punctured you can cause a bone infection which requires long term IV therapy

vein occlusion

chemotherapy and IV drug abuse can block the veins

hematoma

blood that has seeped into the tissue makes a blood tumor (lump). can occur because the bevel is not completely (partially) in the vein or the needle has gone through the vein. stop the procedure immediately and apply pressure to the site

syncope

cold, damp, clammy skin, dizziness, black dots in the vision, hearing becomes distant, fainting is the end result. this patient should be lying down when blood is drawn.

syncope first aid

remove tourniquet, needle, lay patient down, apply a cool compress

hemoconcentration

can occur when a tourniquet is left on too long because the cells cannot pass the area but the fluid can. This would cause incorrect readings especially for Hct.

petechiae

small pinpoint bruises causes by a too tight tourniquet resulting from ruptured capillaries

collapsed veins

if the syringe is drawn too quickly or the vacuum is to strong for a small vein

hemolysis

rupture of red blood cells causing a release of hemoglobin and pink tinged serum. test results will be grossly incorrect

increased swelling and hematoma

if tourniquet is left on after removal of the needle, not enough pressure to the site after needle removal, or heat is applied immediately after phlebotomy

mastectomy

never use this side of the body for phlebotomy because there can be lymphostatis or decreased lymph flow due to removal of the lymph nodes. venipuncture here would increase the potential for infection and alter the chemical composition of the blood which

thrombosis

a solid mass derived from blood constituents (clot) that would occlude (clog) the vessel

edema

an abnormal accumulation of fluids in the intercellular spaces causing puffiness of the tissue which would make it difficult to palpate (feel) the veins

neurologic complications

a sharp tingling sensation. It is more likely if venipuncture is done over the basilic vein because the brachial nerve lies beneath

obesity

veins are difficult to visualize and palpate because the patient has so much adipose (fat) tissue

failure to draw

Occurs when the needle is not deep enough or is too deep, no vacuum in the tube, the needle bevel is against the vein wall, sclerosed veins

damaged, sclerosed or occluded veins

blood does not flow well through these veins. They are scarred and feel hard on palpation. this can happen to chemotherapy patients and IV drug abusers. Though you can feel the veins they are usually so damaged that you can't get a needle into the middle

petechia

Small red spots can occur if the tourniquet is too tight or the patient has a coagulation abnormality.

burned or scarred areas

Difficult to palpate (feel), may be sensitive, more susceptible to infection

sclerosis

scarred, hardened, and stiff veins that feel cord-like and is caused by extensive IV and drug use and elderly
*use another vein for venipuncture if possible

phlebitis

inflammation of a vein as a result of repeated venipuncture on that vein

thrombophlebitis

inflammation of a vein with formation of a clot

septicemia

systemic infection associated with the presence of pathogenic organism introduced during venipuncture
usually because the area wasn't cleaned properly

hemolysis

breaking of RBC's membrane which releases free hemoglobin into the circulating blood
Usually a result of mechanical damage due to poor technique

What can cause specimen contamination and hemolysis during capillary collections?

excessive milking of the finger- contaminates the specimen with skin and tissue cells

How can a hematoma be prevented after collection?

After the needle is removed, apply appropriate pressure to venipuncture site until the bleeding stops
*never have patient bend the arm

Which of the following personal protection equipment (PPE) must a phlebotomist use when performing a skin puncture or venipuncture?

Gloves

Most tubes containing additives should be inverted how many times?

5-8

How many inches above the site should a tourniquet be placed?

2-4