Extravasation refers to the leakage of fluids from a vein into the surrounding tissues.
That is the correct spelling of the medical term "cannulation" (using a drainage tube).
The term 'cannulation' is used to denote a tube or cannula being inserted into the body. Cannulation is used to administer medication, or to withdraw fluid from the body.
The superficial veins of the upper extremities are best for cannulation.
Phentolamine
Extravasation comes from the term extravate, which means to force or squeeze something out. Extravasation is most commonly used as a medical term as it relates to urology, epidemiology and other fields where this type of action takes place within the human body.
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31002 - lavage by cannulation; sphenoid sinus
Extravasation can cause tissue necrosis.
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Cannulation of the lower limbs is generally avoided due to the susceptibility of the lower limbs to infection due to broken skin and poor foot hygiene. The practice is contraindicated in diabetics, mostly due to the decrease in quality vascularisation and risk of diabetic ulcer development from cannulation.
Infiltration and Extravasation are problems that can result from intravenous fluids. Infiltration is the leaking of the fluid into the tissue surrounding the vein. This happens when the tip of the catheter is no longer inserted in the vein, but is not removed from the patient. Extravasation is the leakage of vesicant fluids into the tissues. Vesicants are known to be more caustic and can cause burns.
The CPT code to use for irrigation of the sphenoid sinus is 31002. The procedure is also known as lavage by cannulation.