OB Anesthesia UPDATED Exam Questions
and CORRECT Answers
What is another name for aortocaval compression - CORRECT ANSWER - Supine
hypotension syndrome
when does aortocaval compression occur - CORRECT ANSWER - Early pregnancy- as
early as 13 weeks
What happens in aortocaval compression - CORRECT ANSWER - Uterus obstructs
venous return (IVC)
Aorta can also be compressed
What hemodynamic changes will you see in aortocaval compression
_SV
_CO
_BP
_HR
How will the body try to compensate? - CORRECT ANSWER - Decreased SV
Decreased CO
Decreased BP
Increased HR
Compensate by VC is lower extremities
What happens to UBF and fetal oxygenation in aortocaval compression? - CORRECT
ANSWER - Reduced
,Aortocaval compression can be severe enough to cause what - CORRECT ANSWER -
Loss of consciousness
How long until you see s/s aortocaval compression - CORRECT ANSWER - May happen
quickly or up to 10 minutes
In aortocaval compression BP could be normal in _ but flow to _ and altered - CORRECT
ANSWER - Arms
Legs
With aortocaval compression, the __ the uterus, the __occlusion can be seen - CORRECT
ANSWER - Larger
More
Rx for aortocaval compression: Never allow mom to lie _ - CORRECT ANSWER - On
her back
Where should you place bump on mom. What does this cause - CORRECT ANSWER -
Under right hip
LUD
What can you do if LUD not helpful - CORRECT ANSWER - Turn to right
Speed of stages of labor depends on what 4 things - CORRECT ANSWER - Parity
Fetal presentation
Maternal pelvis
Contraction pattern
1st stage of labor has how many stages - CORRECT ANSWER - 2-latent & active
, 1st stage of labor begins with what? Ends with what? - CORRECT ANSWER - Begins
with onset of contractions and ends with full cervical dilation (10cm)
Cervix softens- little dilation occurs (2-3cm) - CORRECT ANSWER - Latent phase
(beginning of 1st stage)
Dilation occurs - CORRECT ANSWER - Active phase (end of 1st stage)
Afferent phase: __ supply of uterus via _ fibers - CORRECT ANSWER - Afferent
C
Afferent nerve supply of uterus via _ fibers level __ to __ - CORRECT ANSWER -C
T10 to L1
2nd stage of labor begins with what? Ends with what? - CORRECT ANSWER - Begins
with full dilation and ends with delivery of infant
In this stage there is cervical dilation & fetal head descending —> compression & stretching of
pelvic muscles and ligaments - CORRECT ANSWER - 2nd stage of labor
In 2nd stage of labor what spinal segments are affected - CORRECT ANSWER - S2-S4
(pudendal)
Neuraxial anesthesia is very beneficial in what stages of labor - CORRECT ANSWER -
First 2 stages
The first 2 pain pathways are what - CORRECT ANSWER - T10-L1
S2-S4
and CORRECT Answers
What is another name for aortocaval compression - CORRECT ANSWER - Supine
hypotension syndrome
when does aortocaval compression occur - CORRECT ANSWER - Early pregnancy- as
early as 13 weeks
What happens in aortocaval compression - CORRECT ANSWER - Uterus obstructs
venous return (IVC)
Aorta can also be compressed
What hemodynamic changes will you see in aortocaval compression
_SV
_CO
_BP
_HR
How will the body try to compensate? - CORRECT ANSWER - Decreased SV
Decreased CO
Decreased BP
Increased HR
Compensate by VC is lower extremities
What happens to UBF and fetal oxygenation in aortocaval compression? - CORRECT
ANSWER - Reduced
,Aortocaval compression can be severe enough to cause what - CORRECT ANSWER -
Loss of consciousness
How long until you see s/s aortocaval compression - CORRECT ANSWER - May happen
quickly or up to 10 minutes
In aortocaval compression BP could be normal in _ but flow to _ and altered - CORRECT
ANSWER - Arms
Legs
With aortocaval compression, the __ the uterus, the __occlusion can be seen - CORRECT
ANSWER - Larger
More
Rx for aortocaval compression: Never allow mom to lie _ - CORRECT ANSWER - On
her back
Where should you place bump on mom. What does this cause - CORRECT ANSWER -
Under right hip
LUD
What can you do if LUD not helpful - CORRECT ANSWER - Turn to right
Speed of stages of labor depends on what 4 things - CORRECT ANSWER - Parity
Fetal presentation
Maternal pelvis
Contraction pattern
1st stage of labor has how many stages - CORRECT ANSWER - 2-latent & active
, 1st stage of labor begins with what? Ends with what? - CORRECT ANSWER - Begins
with onset of contractions and ends with full cervical dilation (10cm)
Cervix softens- little dilation occurs (2-3cm) - CORRECT ANSWER - Latent phase
(beginning of 1st stage)
Dilation occurs - CORRECT ANSWER - Active phase (end of 1st stage)
Afferent phase: __ supply of uterus via _ fibers - CORRECT ANSWER - Afferent
C
Afferent nerve supply of uterus via _ fibers level __ to __ - CORRECT ANSWER -C
T10 to L1
2nd stage of labor begins with what? Ends with what? - CORRECT ANSWER - Begins
with full dilation and ends with delivery of infant
In this stage there is cervical dilation & fetal head descending —> compression & stretching of
pelvic muscles and ligaments - CORRECT ANSWER - 2nd stage of labor
In 2nd stage of labor what spinal segments are affected - CORRECT ANSWER - S2-S4
(pudendal)
Neuraxial anesthesia is very beneficial in what stages of labor - CORRECT ANSWER -
First 2 stages
The first 2 pain pathways are what - CORRECT ANSWER - T10-L1
S2-S4
