A catheter is a medical instrument used to remove or deliver fluids from the body. It can be made of rubber, silicone, or plastic material and comes in different sizes and types. This device is typically used in medical procedures and treatments that require the delivery or removal of fluids from the body.

One of the common types of catheters is the urinary catheter, which is used to drain urine from the bladder. The urinary catheter is inserted through the urethra and into the bladder. This procedure is commonly used in patients who are unable to urinate on their own, have a urinary blockage, or require continuous urinary drainage, such as those who have been bedridden or in a coma. The urinary catheter is also used in surgeries where it is important to keep the bladder empty during the operation.

Another type of catheter is the central venous catheter, which is inserted into a large vein to deliver fluids, medications, or nutrients into the body. This catheter is commonly used in patients who require long-term intravenous therapy, such as those undergoing chemotherapy. The central venous catheter can also be used to monitor vital signs and draw blood samples for tests.

A nasogastric tube is another type of catheter used to deliver nutrients or medication directly into the stomach. This catheter is inserted through the nose and down the esophagus into the stomach. This procedure is commonly used in patients who are unable to eat or swallow on their own, or in those who require continuous feeding. The nasogastric tube can also be used to remove excess stomach contents in cases of vomiting or gastric bleeding.

The proper insertion and use of a catheter requires professional medical training and expertise. Improper use can lead to infection, injury, or other complications. It is important that medical professionals follow proper protocols for catheter insertion, usage, and maintenance to minimize risks and ensure safety.

In summary, catheters are medical devices used to deliver or remove fluids from the body. Different types of catheters serve different purposes, such as urinary catheters for bladder drainage and central venous catheters for long-term intravenous therapy. These medical devices require professional medical training and expertise to ensure proper insertion, usage, and maintenance, and to minimize the risk of complications.

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