General Calcs for the class Flashcards
How do you calculate the new MV?
[Present MV x Present PaCO2]/Goal PaCO2
How do calculate new RR?
[Present RR x Present PaCO2]/Goal PaCO2
Desired PaCO2 calculation?
Current PaCO2 + delta PH
How do you calculate a desired pH (delta pH)
pH1 - pH2
What is a normal A-a gradient and how to do you calculate it?
PAO2 - PaO2.
- [Alveoli - arterial oxygen content]
You need PAO2 -> which is calculated w/the alveolar gas equation,
Normal A-a gradient is 5-10
Static compliance formula
Dynamic compliance formula
Desired pH calculation?
Desired PaCO2 Calculation
Desired FiO2
New MV and RR Calculaton?
Alveolar MV and Peak Inspiratory Flow (PIF) Calculation?
IBW Calc?
Rapid sequence breathing index/Tobin score calc? (RSBI)
What is our desired range?
RSBI < 105
How do you calculate:
1. Ti dyanmic
2. Ti Total
3. Ti
How do you calculate physiological dead space (Vd/Vt) and Oxygen index (OI)
How do you calculate MAP?
[(2xDiastolic)+systolic] / 3
Change in pressure calc?
What are the tank conversion ratios for
1. H tanks
2. M tank
3. E tank
4. D tank
How to calculate how long a tank will last?
([(Total O2 in tank (2200 if not indicated) - 500 (safety buffer)] x Tank ratio) / Flow (set lpm)
Liquid O2 calculation?
Total O2 amount x 860/ Flow