Fetal Surveillence Flashcards Preview

Jason's MD3 Women's > Fetal Surveillence > Flashcards

Flashcards in Fetal Surveillence Deck (22):
1

How to survey fetus?

Measurements
Fetal movements
Biochem: oestriol(not anymore)
U/S
CTG

2

U/S fetal well being? 4 things

Fetal biometry
Liquor Volume amniotic fluid level
Fetal Activity
Doppler

3

Fetal biome try

Head circ
Femur length
Abdo circumference

4

Fetal activity

Body movements
Breathing movements(if well oxygenated)
Tone (flexion=good, extension = bad

5

Doppler U/S: 2 arteries?

Flow:
Umbilical artery
MCA

6

U/S on umbilical artery, how to measure?

Peak systolic and end diastolic flow ratio

7

Total white out of both lungs in neonates?

Hyaline membrane disease
pulmonary HTN - sildenafil, NO

8

Placenta hypoxia, where does blood go?

Want it to go to good area but like lungs:
Umbilical arteriolar vasoconstriction

9

4 things to look for in CTG?

Baseline (110-160)
Acceleration - fetal excitement (2 in 20 minutes)
Deceleration - no bad
Variability - good: sinus arrythmias (5-25)

10

4 types of variability

Increased
Reduced
Absent
Sinusoid all

11

4 Ss for reason of decreased variability

Sick
Sleeping
Sedated
Sub mature

12

Sinusoidal CTG why?

Severe fetal Anaemia

13

Early deceleration from what?

Head compression from contractions: simultaneous from contractions

14

Late deceleration S?

After peak contraction
Fetal hypoxia
Adaptive response to hypoxia, don't just treat
Need early delivery

15

Variable deceleration S cause?

Cord compression
Rapid decal and rapid recovery

16

Variable deceleration bad waves?

Deep and wide with rebound tachy
Delayed recovery

17

Sudden crash deceleration?

Profound hypoxia, need immediate delivery

18

4 causes of sudden severe fetal hypoxia

Maternal hypotension
Cord compression
Abruption
Sustained uterine contraction

19

Ectopic beats 3 reasons

Normal
Caffeine
Terminal hypoxia (lots of spikes in CTG)

20

If fetus severe Bradycardia, cause?

Heart block - sjorjen's

21

What causes a straight line on CTG?

Fetal brain death

22

Worst encephalitis in adolescent

Herpes simplex, can happen in utero