Video: Koj xam cov pa ua pa ib feeb twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Feeb qhov cua (VE) yog tag nrho ntim gas nkag (los yog tawm) lub mob ntsws ib feeb . Nws yog sib npaug rau cov ntim dej (TV) multiplied los ntawm cov ua pa tus nqi (f). Feeb qhov cua nkag = VE = TV x f Thaum so, a tib neeg txav mus ~ 450 ml/ ua pa x 10 ua pa / min = 4500 ml/ teev min.
Raws li, qhov cua nkag feeb yog dab tsi thiab nws suav li cas?
feeb cua tshuab yog tidal ntim lub sijhawm ua pa, feem ntau, 500 mL × 12 pa/min = 6000 mL/min. Alveolar feeb qhov cua yog tsawg dua feeb qhov cua thiab yog xam as ([cov ntim − qhov chaw tuag] × pa pa) los yog ([500 mL − 150 mL] × 12 breaths/min) = 4200 mL/min.
Ib sab saum toj no, koj ua li cas xam cov feeb cua ntws? Rau suav Air Flow hauv Cubic Feet per Feeb (CFM), txiav txim cov Flow Velocity hauv foot per feeb , ces muab qhov no sib ntxiv daim duab los ntawm Duct Cross Sectional Area.
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov ib txwm ua rau lub qhov cua feeb?
Ib txwm feeb qhov cua yog nruab nrab ntawm 5 thiab 8 L ib feeb (LWM). Tidal ntim ntawm 500 txog 600 mL ntawm 12-14 ua pa ib feeb tawm los feeb qhov cua ntawm 6.0 thiab 8.4 L, piv txwv. feeb cua tshuab tuaj yeem ua ob zaug nrog kev tawm dag zog, thiab nws tuaj yeem tshaj 40 Lpm nrog kev tawm dag zog.
Puas yog 30 ua pa ib feeb ib txwm?
Li qub Ntau yam Rau tib neeg, qhov ua pa ib txwm ua rau tus neeg laus noj qab nyob zoo thaum so yog 12-18 ua tsis taus pa rau feeb . Qhov nruab nrab ntawm kev ua pa ntawm lub hnub nyoog yog: yug mus rau 6 lub lis piam: 30 –40 ua tsis taus pa rau feeb.
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