 Busy. Please wait.
or Forgot Password?

Don't have an account?  Sign up
or taken why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size     Small Size show me how

# Neo/Peds Final

### Conversion formulas and mech vent

QuestionAnswer
Cylinder Duration Duration =2200 x factor/total flow E=.3 G=2.41 H=3.14
Calculating FiO2 (home) (.21 x airflow) + (O2 flow) / total flow
Liquid Cylinder Duration Reservoir wght x 342 / liter flow
Calculating Flow in L/Min Flow rate (L/Sec) = Vt (tidal vol in ml) / I-time (in sec) Convert ml to L and Convert Sec to Min
Calculating Vt (Tidal vol) Vt = Flow Rate (L/Sec) x I-time (sec) Convert L to ml for tidal vol
Calculating I-time I-time(sec) = Vt (L)/Flow Rate (L/sec) Convert ml to L on Vt
Calculating I-time when rate & I:E are unknown Respiratory cycle time / total parts of I:E = necessary I-time Means same as TCT / TP = I-time Resp cycle time = RR bpm must convert Min to Sec
Calculating Corrected Vt Exhaled Vt - Compressed Vol = Corrected Vt; Where Compressed Vol = (PIP - PEEP) x circuit compliance Must end up in ml
Calculating Compressed Volume Comp Vol = (PIP - PEEP) x circuit compliance
Calculating Mean Airway Pressure MAP = PIP (I-time/TCT) + PEEP (E-time/TCT) Remember to add I-time and E-time to get TCT
Calculating Time Constant (Kt) 1 Kt = Compliance (L/cmH2O) x Resistance Remember 3 Kt is required for 95% of Vt to exit lungs Remember convert ml to L
Calculation E-time to achieve RR E-time = 60/desired rate = TCT then TCT - I-time = E-time
Calculating % Solution % Solution = Solution wgt (g) / Solvent Vol (ml) x 100 Remember to convert mg to g
Calculating BiCarb dosage HCO3 dosage = [Pt wt (kg) x base deficit] x .03 Remember: convert mg to g and g to kg
Calculating Oxygen Index (OI) OI = MAP x FiO2 / PaO2 x 100
Goals of Mech Vent Normalize & maintain ABG's; Prevent iatrogenic complications (ie: Barotrauma, infection, sedation); Support pts resp needs
Neonatal Ventilation Normally Time Cycled / Pressure Limited
Pediatric Ventilation Normally Volume Cycled
Neonatal mech vent settings Need PIP, PEEP, RR, I-time, MAP, Vt; Must have readings of Vt and Ve
Most neonatal vents are _______ ________/_________ ___________ vents Time cycled / pressure limited (limited by PIP you set)
What is initial PIP for? To achieve good chest excursion
What does excessive PEP cause? Hyperinflation & barotrauma; ie: PIE, pneumothorax, pneumomediastinum, pneumocardium, BPD)
When controlling pressures, ______ directly affects _____ and _____ PIP; Vt and MAP (Paw) Ie: ↑ PIP ↑ Vt ↑ PIP ↑ PaO2 & ↓ PaCO2 by ↑ Ve (PIP also ↑ MAP)
Created by: Beccaboop