what parts of airway management may be difficult in pregnant patients - difficult mask
ventilation
difficult DL
difficult intubation
what makes a parturient's airway more complicated - increased mallampatti score
upper airway vascular engorgement
narrowing of glottic opening
what hastens onset of denaturation during apnea in parturient - increased O2
consumption and decreased FRC
FRC vs closing capacity in pregnant patient - FRC drops below CC causing airway
closure during tidal breathing
what hormone increases minute ventilation in parturients - progesterone
increases by 50% --> mild compensated respiratory alkalosis
what hormones cause vascular engorgement and hyperemia in pregnant patients -
progesterone, estrogen, relaxin
glottic opening in the parturient - is narrowed downsize ETT 6 - 7
best laryngoscope handle for parturient - short handled - datta handle due to larger
breasts
nasopharyngeal airway in parturient - is to be avoided - tissue in nasopharynx is
particularly friable
airway edema in parturient is made worse by what interventions/comorbids -
preeclampsia
tocolytics
prolonged TBurg position
relaxin effect on ribcage in parturient - relaxes ligaments in the ribcage and allows ribs
to assume more horizontal position
increases AP diameter of chest
allows diaphragm to move in cephalic direction
why is FRC reduced in parturient - decrease in expiration reserve volume and residual
volume