Question

How to calculate suction catheter size for tracheostomy?

Answer 1

Answer:

Explanation:

✨One method to calculate the French (Fr) suction catheter size is: Fr = (ETT size [mm] – 1) x 2, which is relatively accurate.

✨A suction catheter with an outer diameter that occludes less than 40% of the ETT internal diameter may be insufficient to clear secretions, necessitating the use of multiple passes.

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Answer 2

• In refrigeration and air conditioning systems, the suction pressure' is the intake pressure generated by the system compressor while operating. The suction pressure, along with the suction temperature and the wet bulb temperature of the discharge air are used to determine the correct refrigerant charge in a system.