Reference Charts Flashcards
PIP Definition
Peak inspiratory pressure - the point of maximal airway pressure
PEEP Definition
Positive End Expiratory Pressure - the pressure maintained in the airways at the end of exhalation
Vt Definition
Tidal Volume - the volume of gas entering the patient’s lungs during inspiration.
It Definition
Inspiratory time - the duration of inspiration
Et Definition
Expiratory Time - the duration of time in expiration
MAP Definition (in the context of ventilatioe an)
Mean Airway pressure - the average airway pressure throughout the respiratory cycle.
f Definition
Overall frequency - the sum of mandatory and spontaneous respirations
Pplat Definition
Plateau Pressure - the amount of pressure placed against the alveoli showing alveolar health
FiO2 Definition
Fraction of Inspired Oxygen - percentage of oxygen from 0.21-1.0
Pplat - PEEP definition
Driving pressure - alveolar opening pressure
I:E ratio Definition
Inspiratory vs expiratory time - the ratio of the duration of inspiration to the duration of expiration time
Pinsp Definition
Inspiratory pressure - for the pressure initiated ventilation
PS Definition
Pressure Support - pressure applied at the end of vent circut used in SIMV to augment the patient’s spontaneous breath.
Cstat Definition
Static compliance - compliance during periods without gas flow, such as during an inspiratory pause.
Cstat = (Pplat - PEEP)/Vt
Oxygen adjustment calculation
(FiO2 x P1) / P2
P1 = barometric pressure at patient pickup location
P2 = barometric pressure at flying altitude
Measuring oxygen delivery formulas
CaO2 = [1.34 x Hgb x SaO2] + PaO2 x 0.003
DO2 = CaO2 x Q
DO2= the amount of oxygen delivered each minute
CaO2 = the content of oxygen in the arteries
Measuring cellular uptake of Oxygen
Fick Formula = Cellular uptake of oxygen
[1.34 x Hgb x SvO2] + PaO2 x 0.003
O2ER = (SaO2 - SvO2)/SaO2
Inferior Infarct
12 Leads - II, III, aVF, and v4r
Coronary Artery occlusion - RCA
Treatment pearls - v4r, fluids, careful with nitro, watch for bradycardia
Anterior Infarct
12 leads - v1-v4
Coronary artery occlusion - LAD or Left Main
Treatment pearls - papilary muscle rupture, cardiogenic shock, FONA
Lateral Infarct
12 leads - 1, aVL, v5, v6
Coronary artery occlusion - Left circumflex
Treatment pearls - FONA
Posterior Infarct
12 leads - reciprocal v1-v4
Coronary artery occlusion - RCA/LCX
Treatment pearls - associated with inferior wall MI in 97% of cases
Left Main Insufficiency
12 leads - aVR
Coronary artery occlusion - Left Main
Treatment pearls - elevation in aVR - 1 mm with depression in v1-v4
Arterial Blood Gas Norms
pH: 7.35 -7.45
PaCO2: 35-45
HCO3-: 22-26
PaO2: 80-100
SaO2: >92%
BE: -2 to 2
Venous Blood Gas Norms
pH: 7.31-7.41
PaCO2: 41-51
HCO3-: 23-29
PaO2: 30-40
SaO2: 75%
BE: -2 to 2
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Pediatric ETT size >1 year old
(16 + age) / 4
ETT depth
3 times the tube size
Suction/NG/Foley catheter size formula
2 x ETT size
Chest tube size
4 x ETT size
Fluid Resuscitation
Neonates: 10 ml/kg
Pediatrics: 20 ml/kg
Adult: 30 ml/kg