catheter

Thân thiện

A nurse carefully inserts a catheter into a patient's arm.

Definition

Noun: A catheter is a thin, flexible, hollow tube made from medical-grade materials. It is designed to be inserted into a body cavity, duct, or vessel. Its primary functions are to allow the drainage of fluids (such as urine), the administration of fluids or medications, or to keep a passageway (like a blood vessel) open.

Usage

A catheter is a medical device used in clinical and hospital settings. It is inserted by a healthcare professional. The word is typically used in a medical context. * The nurse inserted a catheter to drain the patient's bladder. * During the procedure, a catheter was threaded through the blood vessel to the heart. * The urinary catheter needs to be changed regularly to prevent infection.

Advanced Usage

• Indwelling catheter: A catheter designed to remain in the bladder for an extended period.
  • The patient with chronic urinary retention required an indwelling catheter.
• Central venous catheter: A long catheter placed into a large vein, often in the neck or chest, to administer medication or fluids.
  • Chemotherapy was delivered via a central venous catheter.

Variants and Related Words

• Catheterize (verb): The act of inserting a catheter.
  • The doctor needed to catheterize the patient.
• Catheterization (noun): The process or instance of inserting a catheter.
  • Cardiac catheterization is a common diagnostic procedure.

Synonyms

• Tube
• Cannula (specifically for short tubes inserted into veins or arteries)

Related Phrases

• Foley catheter: A specific type of indwelling urinary catheter that has a small balloon to hold it in place inside the bladder.
  • A Foley catheter was placed post-surgery.

Học thuật

Noun

1. a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open