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A nebuliser draws \( 25 \ \mathrm{mL} \) in five minutes. Its uptake rate is

  • A.125 mL/min
  • B.5 mL/min
  • C.25 mL/min
  • D.0.2 mL/min

Answer: B

Dividing the volume by the time:

\[ \frac{25}{5} = 5 \ \mathrm{mL/min} \]

giving 5 millilitres per minute, a typical figure. A rate well below specification points at a blockage or a loose connection, and one well above suggests a damaged capillary. A simple ratio that can be checked in a minute is the kind of diagnostic worth building into a routine.

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