OB facts Flashcards
(211 cards)
all pt’s are considered what????
full stomachs
what type of induction should be done s needed
RSI
Respiratory Changes:
the diaphragm is displaced 4cm where by the expanding uterus
cephalad
Respiratory Changes:
the diaphragm being displaced 4 cm cephalic will cause what to FRC
decrease by 20%
Respiratory Changes:
what happens to VC, TLC, and IC ?
nothing they are all unchanged
-Unchanged d/t compensatory increase in thoracic anteroposterior diameter
Respiratory Changes:
as pregnancy increase thoracic breathing INcreases and _____ breathing decreases
Abdominal
Respiratory Changes:
the ventilatory changes produce what acid base problem? yet the compensation by metabolic acidosis will keep pH normal
respiratory alkolosis (PaCO2 =30)
Respiratory Changes:
would you anticipate the PaO2 to be higher in the pregnant or non pregnant state
Pregnant
Respiratory Changes:
Would you anticipate the PaCO2 to be higher in the pregnant or non-pregnant state
non-pregnant
Respiratory Changes:
the increase in O2 consumption produces a 70% increase in _____ _____ at term
alveolar ventilation
Respiratory Changes:
the increase in O2 consumption produces a 70% increase in alveolar ventilation at term. the ____ will increase by 40%
tidal volume
Respiratory Changes:
the increase in O2 consumption produces a 70% increase in alveolar ventilation at term. the Tidal volume will increase by 40% and the _____ increases by 15%
respiratory rate
Respiratory Changes:
the increase in O2 consumption produces a 70% increase in alveolar ventilation at term. the Tidal volume will increase by 40% and the respiratory rate increases by 15% relenting the increase in what?
alveolar ventilation
Respiratory Changes:
the increase in alveolar ventilation and decrease in FRC enhance maternal uptake of what?
Inhaled anesthetics
Respiratory Changes:
Increased AV + Decreased FRC = what to MAC
decreased MAC
Respiratory Changes:
Airway edema and engorgement is most evident during what trimester
3rd
Respiratory Changes:
Airway edema and engorgement is most evident in the 3rd trimester… what does this mean with our instrumentation?
Unexpected nose bleeds and airway bleeds can occur d/t careless instrumentation placement
oral airways, ETT, and NG tubes placed w/ caution
ETT need to be smaller (6/7 instead of 7/8)
Respiratory Changes:
a decrease in FRC may cause what complication
rapid desaturation
Respiratory Changes:
there is an increase in maternal O2 consumption and any episode of apnea will lead to what?
maternal hypoxia
Respiratory Changes:
During labor hyperventilation may be due to pain or specific breathing technique. Assess for alkalemia bc hypocarbia will cause what? and will result in what?
uterine vasoconstriction
result in decreased placental perfusion
Respiratory Changes:
with hyperventilation the alkalemia and hypocarbia will cause uterine vasoconstriction and results in decreased placental perfusion… is the fetus at risk?
yes
Changes in lung parameters: increase/ decrease/ NC:
Inspiratory reserve volume (IRV)
increase (5%)
Changes in lung parameters: increase/ decrease/ NC:
TV
Increase (45%)
Changes in lung parameters: increase/ decrease/ NC:
Expiratory reserve volume (ERV)
decrease (25%)