Troubleshooting: if the IV solution flow is slow or non-existent ask yourself: Is the tourniquet loose? Restrictive clothing? Swelling at IV site? Flow regulator open? Tip of catheter against vein…
Calculating Flow Rates Volume in mL x Drip = Flow rate (drops per minute) Time of infusion Factors that cause the flow rate to vary: Vein spasm Vein pressure changes…
IV Therapy | Part Four – Calculating Flow Rates
Structure of Veins: Three Layers: Tunica Intima - endothelial lining, flat cells to let blood flow. Valves in this layer Tunica Media - muscular and elastic tissue, vasoconstrictor/dilators and nerve…
IV Therapy | Part Three – Vein Structures, IV Sites and Cannulation
Needle/Catheter Catheter remains in the vein Needle facilitates the passage into the vein 3 types: Plastic over hollow needle, needle is pulled out after insertion in vein leaving the catheter…
IV Therapy | Part Two – Needles and Catheters
Important tool for cardiac disease, hypoglycemia, seizures and shock also: Routes for meds Precautionary measure IVs come in four types Crystalloids - dissolving crystals (salts and sugars) in water. Ions…