Intravenous Injection - Sites, Uses, Equipment; IV push, IV infusion And Complications

Intravenous Administration - IV Injection or IV Therapy


Intravenous injection or infusion method of the parenteral route, medication sent directly into the vein using a needle or tube.  Intravenous injection is abbreviated as IV.

Intravenous (IV) injection involves inserting a needle into the vein, allowing the substance directly delivers to the bloodstream.


IV or intravenous therapy is a route to give medicine, fluids, nutrition, or blood directly into the bloodstream through a vein, and is also used for taking blood products sampling of blood in the blood collection tube.


Check out here methods of Blood Collection and what are the complications?


IV route allows medication absorbed more rapidly and avoids the first-pass metabolism.


IV therapy uses a type of tiny plastic tubing called a cannula that inset into the vein, a needle, and plastic tubing connects to a fluid bag.


Angles of Intravenous injection


IV injection is given at a 25-degree angle.


Know here what is angle of intramuscular injection, subcutaneous Injection, and intradermal Injection?


Intravenous Administration

Site of IV Administration


IV administration placed; vein in –


1. Wrist

2. Elbow

3. Back of the hand, and

4. Surface of the foot


Check out here how does find im injection sites?


Medical Use of IV Therapy


1. IV Therapy for medications

2. IV Therapy for fluids

3. IV Therapy for nutrition

4. IV Therapy for blood transfusions; through blood transfusion set


What are types of IV fluids? And checkout use of intravenous fluids.

Equipment Used in IV Administration

Equipment used for administration of IV therapy-

1. IV Catheter tube Uses as Standard IV Administration

IV catheter tubes are-

a. Intravenous Cannula

b. IV Butterfly Catheters


2. Standard IV Catheter

Standard IV catheters include-


1. IV push

2. IV infusion


The way of IV infusion therapy-

a. Pump infusion

b. Syringe pump

c. Drip infusion


1. IV Catheter


A thin plastic tube called an IV catheter is inserted into your vein. IV catheter used as standard IV administration.

The needle is usually inserted into a vein in the site of the wrist, elbow, or the back of the hand. 

IV catheter is introduced into the vein by a needle. IV catheter allows giving multiple safe doses of medication without needing to prick with a needle each time.


A. Intravenous Cannula


Intravenous (IV) cannulation is a technique in which a cannula is placed inside a vein to provide venous access, it allows administration of fluids, medications, parenteral nutrition, chemotherapy, and blood products sampling of blood. 


How many types of cannula are there? Know IV cannula sizes and their uses.

B. IV Butterfly Catheters


IV Butterfly Catheters or Scalp Vein Sets or butterfly needle or winged infusion set is a device used to insert a vein for giving medications or drawing blood.

IV butterfly needle is a very thin hypodermic needle; it has two flexible wings; flexible transparent tubing, and a connector.

The connector can be attached to tubing from an infusion pump or bags of IV to deliver medications or fluids to the bloodstream or attach to a vacuum tube or collection bag to draw for blood specimen collection.

Through a connector, medications can also be delivered via a syringe.


2. Standard IV Catheter


Standard IV the catheter used to two kinds of IV medication administration -

A. IV push

B. IV infusion


A. IV Push


Intravenous or push IV therapy is the rapid administration of the injection.

A syringe is connected to a catheter and quickly delivers the medication into the bloodstream.


B. IV Infusion


IV infusion is a controlled administration of medication into a patient’s bloodstream over time. 

These devices are used for medication administration-


1. Pump infusion

2. Syringe pump

3. Drip infusion


1. Pump Infusion


An infusion pump is a medical device that delivers fluids, such as nutrients and medications, into a patient's body in controlled amounts. The infusion pump is attached to the patient's IV line.


2. Syringe Pump 


A syringe pump is a small infusion device that is used to gradually administer specific amounts of fluids. 

Syringe pumps devices are used to gradually administer small amounts of medication or fluid to a patient.

Syringe pumps work as pushing out fluid via a syringe to send the medication into IV tubing in a predetermined volume that delivers fluids, such as nutrients and medications, into a patient's body in controlled amounts.

3. Drip Infusion


Drip infusion therapy involves IV tubing set and solution bag that contains fluids. IV solution drip delivers fluids from solution bag and go through a tube and into the catheter and deliver into patient’s bloodstream.




Drugs Typically Administered by IV Therapy


Antibiotics and pain-relieving medication are common, given through IV administration.


1. Antibiotics Drugs

Drugs like Gentamicin, Vancomycin (treat bacterial infection).


2. Chemotherapy Drugs

For example, Doxorubicin, Cisplatin (slow or stop the growth of cancer cells).


3. Pain Relieving Medications

 Drugs are hydromorphone, morphine (pen control).


4. Drugs used to Treat Low Blood Pressure (Hypotension)

Drugs are dopamine, epinephrine, norepinephrine, and dobutamine.


Complications of IV Administration


Generally, IV medication is safe, but any incidence leads to mild to severe effects. There is some complication of IV Administration-


1. Risk of Infection

To prevent infection, use an aseptic technique.


2. Hematoma

 Leakage of blood from the vessel into the surrounding soft tissue.


3. Damage of Blood Vessel and injection site


4. Infiltration

Medication leaks into the surrounding tissue.


4. Air Embolism


5. Blood Clots


6. Phlebitis

 Inflammation of the vein


7. Thrombophlebitis 

Inflammation of a vein is caused by a blood clot.





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