jnrpreview.blogg.se - Alveolar dead space 1ml per pound

If alveolar ventilation goes UP, PaCO2 goes DOWN.

Normal adult Vt = 400-700 ml or about 7 ml/kg of ideal body weight.

volume of inspired gas that actually reaches the alveoli and participates in gas.

Minute ventilation- VT x RR = VE : volume of gas breathed in one minuteĪlveolar ventilation- = VA (take out the deadspace per “breath”) Sensitivity- threshold value set so when triggered, inspiration will begin

Time triggered initiates and delivers a breath when a preset time has elapsed. Trigger variable - determines how the start of inspiration begins (flow, pressure, time)įlow trigger is considered the most comfortable for patient/system synchrony in mechanical

Limit variable - set to maintain control over the over the 3 main parameters while theĬycle variable- ends the inspiratory phase. Know terms and definitions from mechanical ventilation:Ĭontrol variable - When one parameter is controlled (Volume/Pressure) and remains MECHANICAL VENTILATION FINAL REVIEW ~ 2320 ~ 1.