Anaesthesia Calculation - Fresh gas flow

What does tidal volume mean?

What does fresh gas flow mean?

When calulating fresh gas flow what is tidal volume always meausre as?

How do you calculate Minuet volume?

• RR x 10 x CF

• BW x 10 X RR

• BW x CF x 10

• BW x 10 x TV

• CF x TV x RR

How do you calculate fresh gas flow?

• BW x TV x RR x CF

• Minuet volume x Body weight X 10

• Tidal volume x Circuit factor

• Minuet volume x Circuit factor

• Circuit factor x Body weight x 10

Calculate The minuet volume...

BW = 4kg

RR = 24

• 192

• 96

• 60

• 960

Calculate The fresh gas flow...

Minuet volume = 960

Circuit factor = 2-3

• 1920 l/min

• 1920-2880 l/min

• 2880 l/min

• 2400 l/min

• 480/320 l/min

Calculate fresh gas flow...

RR = 26

BW = 7kg

CF = 2-3

• 4350 - 6780 l/min

• 3650 - 5750 l/min

• 364 - 546 l /min

• 3640 - 5460 l/min

Answer explanation

Minuet volume = BW x TV x RR ...

7kg x 10 x 26 = 1820

Fresh gas flow = MV x CF ...

1820 x 2 = 3640

1820 x 3 = 5460

Calculate fresh gas flow...

RR = 21

BW = 9kg

CF = 2-3

Answer explanation

Minuet volume = BW x TV x RR ...

9kg x 10 x 21= 1890

Fresh gas flow = MV x CF ...

1890 x 2 = 3780

1890x 3 = 5760

... 3780 - 5760 ml/min