Intravenous Therapy Flashcards
Review the types of IV fluids, how to put an IV in, and complications.
What is intravenous therapy (IV therapy)?
It is giving fluids and other nutrients through a vein.
It is given to clients who can’t take fluids orally or when there is dehydration.
What are the steps to insert an IV?
The nurse is using a translumination device to locate the veins.
- Select site
- Clean the site with disinfectant solution
- Apply tourniquet
- Insert needle
- Check indicator of blood return
- Advance catheter
- Pull stylette back slightly, advance catheter into vein
- Release tourniquet
- Apply gentle pressure over the vein at the catheter tip and remove the metal stylette
What is the difference between a peripheral IV site and a central line?
- Peripheral IV site: a short IV that goes into a vein into the arm.
- Central line: an IV that also goes into a vein but is threaded much further in so that the tip of the catheter site is closer to the heart for quicker administration.
What are the 3 types of IV solutions?
- hypotonic
- isotonic
- hypertonic
What is a hypotonic solution and what are some examples?
Hypotonic solutions are “more watery”. There is a lower concentration of solutes compared to body fluids.
Examples: 0.45% saline, 1/2 normal saline, D2.5W, 0.33%NS
When given, HypOtonic fluids will first go into the vascular space then will shift “Out of the vessels” and into the cells to replace cellular fluid.
In what situations is a hypotonic solution given?
- Fluid replacement for those with nausea/vomiting, burns or hemorrhage for a client who has cardiac or renal disease
- Hypernatremia
Why is a hypotonic solution given for fluid replacement for clients with cardiac or renal disease?
Clients with cardiac or renal disease cannot handle extra fluids too quickly.
A hypotonic solution prevents the client from receiving fluids too quickly because it goes into the vascular space and then leaves quickly to go into the cells.
Why is a hypotonic solution given to clients with hypernatremia?
Because it will dilute the sodium in the blood.
What is an isotonic solution and what are some examples?
Isotonic solutions have the same concentration of solutes as body fluids.
Examples: 0.9% NS, Lactated Ringers or LR, D5W, D5 1/4 NS
When given, iSotonic fluids will first go right into the vascular space and then “Stay in the vessels” to treat dehydration.
In what situations is an isotonic solution given?
It is fluid replacement for those with nausea/vomiting, burns or hemorrhage.
Who should NOT receive isotonic solutions?
Clients with renal or cardiac disease.
The kidneys and heart cannot handle the extra fluid. It will cause fluid volume overload.
What is a complication of administering too much isotonic solution?
It can cause fluid volume overload and increased blood pressure.
What is a hypertonic solution and what are some examples?
Hypertonic solutions have an increased concentration of solutes as compared to body fluids.
Examples: D10W, 3%NS, 5%NS, D5LR, D5NS, TPN, albumin
When given, fluids will first go into the vascular space and then pull fluids from the 3rd space to go back into the vessels.
In what situations is a hypertonic solution given?
When a client has too much fluid in the 3rd space such as severe edema, burns or ascites.
What is a complication of administering too much hypertonic solution?
It can cause severe fluid volume overload.
This client is usually in an ICU with frequent monitoring of blood pressure, heart rate, and central venous pressure.
What substances are in D5W and D10W?
Glucose
- D5W: 5% dextrose and water
- D10W: 10% dextrose and water
Dextrose is a type of sugar.
Which type of client should typically NOT receive D5W or D10W?
Clients with diabetes because the blood sugar is already elevated.
What substances are in lactated Ringer’s (LR)?
Sodium, potassium, calcium, and water.
Which clients is Lactated Ringer’s NOT given to because of electrolyte overload?
Clients with acute kidney injury or chronic kidney disease because their potassium is already elevated.
What are IV gauges?
They are the size of the diameter of the needle.
It is sometimes called a lumen or cannula.
Complete the sentence:
The ______the IV gauge number the _______the diameter.
smaller, larger
What IV gauge would be used for rapid fluid administration or blood products?
18 or 19 gauge lumen
What IV gauge would be used for fat emulsion (lipids)?
20 or 21 gauge lumen
What IV gauge would be used for standard IV fluids or IV meds?
- 22 or 24 gauge lumen
- 25 gauge lumen for very small veins
Label the parts of IV tubing:
- drip chamber
- extension hook
- flow control clamp
- piggyback set
- piggyback Y-port
- primary set
- secondary Y-port
- slide clamp
- spike
What does it mean to “prime the tubing”?
To make sure the tubing has fluid in it before it is connected to the client’s IV access and started.
What is an IV piggyback or secondary tubing?
An IV medicine that goes through the IV tubing that is hung above the main bag of IV fluids.
What is the purpose of an IV filter?
To catch and prevent larger molecules from entering the client’s veins.
What is an IV pump?
A machine where the IV tubing is placed to control the amount of fluids a client gets without having to calculate and count drips.
What is a normal IV fluid rate for a typical client?
100-125 ml/hour
What is an IV compatibility check?
The check confirms that what will be administered through the IV is compatible with the main bag of fluids that is already running through the IV.
Why is IV tubing flushed before and after giving an IV medication or solution?
To prevent a reaction from two incompatible fluids in the IV tubing.
What is keep vein open (KVO) for?
To keep the IV fluids going through the client’s IV at a very slow rate for future use.
The IV pump is set at 20 mL/hour.
Label the common veins for IV insertion on the inner arm:
- accessory cephalic vein
- basilic vein
- cephalic vein
- median cubital vein
- median vein of forearm
Label the common veins for IV insertion on the dorsal surface of the hand:
- basilic vein
- cephalic vein
- dorsal venous arch