anaesthesia calculations

Question 1

what is the calculation for fresh gas flow?

Answer 1

FGF = minute volume x circuit factor

Question 2

what is the calculation for minute volume?

Answer 2

minute volume = tidal volume x RR

Question 3

what is the calculation for tidal volume?

Answer 3

10ml/kg (or what is given)

Question 4

what is the circuit factor for a bain?

Answer 4

2-3

Question 5

what is the circuit factor for a lack?

Answer 5

0.8-1.5

Question 6

what is the circuit factor for a t-piece?

Answer 6

2-3

Question 7

can you do IPPV on a bain?

Answer 7

yes

Question 8

can you do IPPV on a t-piece?

Answer 8

yes

Question 9

can you do IPPV on a lack?

Answer 9

no

Question 10

what weight range is a t-piece for?

Answer 10

under 10kg

Question 11

what weight range is a bain for?

Answer 11

over 8kg to under 30kg

Question 12

what weight range is a lack for?

Answer 12

over 10kg

Question 13

describe a lack circuit

Answer 13

2 parallel limbs

Question 14

describe a bain circuit

Answer 14

green inspiratory tube inside expiratory tube

Question 15

what is the calculation for bag size?

Answer 15

bag size = (10 x 6 x body weight) / 1000

Question 16

how can you estimate ETT size?

Answer 16

ETT size = (body weight / 4) + 4