General Calcs for the class

Question 1

How do you calculate the new MV?

Answer 1

[Present MV x Present PaCO2]/Goal PaCO2

Question 2

How do calculate new RR?

Answer 2

[Present RR x Present PaCO2]/Goal PaCO2

Question 3

Desired PaCO2 calculation?

Answer 3

Current PaCO2 + delta PH

Question 4

How do you calculate a desired pH (delta pH)

Answer 4

pH1 - pH2

Question 5

What is a normal A-a gradient and how to do you calculate it?

Answer 5

PAO2 - PaO2.
- [Alveoli - arterial oxygen content]

You need PAO2 -> which is calculated w/the alveolar gas equation,

Normal A-a gradient is 5-10

Question 6

Static compliance formula

Answer 6

Question 7

Dynamic compliance formula

Answer 7

Question 8

Desired pH calculation?

Answer 8

Question 9

Desired PaCO2 Calculation

Answer 9

Question 10

Desired FiO2

Answer 10

Question 11

New MV and RR Calculaton?

Answer 11

Question 12

Alveolar MV and Peak Inspiratory Flow (PIF) Calculation?

Answer 12

Question 13

IBW Calc?

Answer 13

Question 14

Rapid sequence breathing index/Tobin score calc? (RSBI)

What is our desired range?

Answer 14

RSBI < 105

Question 15

How do you calculate:
1. Ti dyanmic
2. Ti Total
3. Ti

Answer 15

Question 16

How do you calculate physiological dead space (Vd/Vt) and Oxygen index (OI)

Answer 16

Question 17

How do you calculate MAP?

Answer 17

[(2xDiastolic)+systolic] / 3

Question 18

Change in pressure calc?

Answer 18

Question 19

What are the tank conversion ratios for
1. H tanks
2. M tank
3. E tank
4. D tank

Answer 19

Question 20

How to calculate how long a tank will last?

Answer 20

([(Total O2 in tank (2200 if not indicated) - 500 (safety buffer)] x Tank ratio) / Flow (set lpm)

Question 21

Liquid O2 calculation?

Answer 21

Total O2 amount x 860/ Flow