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WorksheetsFetal well being - EFM & IIA
Total questions: 25
Worksheet time: 12mins
What is the % oxygen saturation level of the fetus in utero
90%
75%
80%
70%
What happens during a contraction?
(a)
What does the initial build up of CO2 cause to happen?
A deceleration of the fetal heart
a rise in PH level
The PH level falls (respiratory acidosis)
Vaso constriction of the blood vessels
What defence mechanisms does the fetus rely on when the gas exchange is impaired for prolonged periods?
(a)
The fetus has lower oxygen saturation levels, what mechanisms does it have to cope with this?
(a)
What controls the fetal heart rate?
autonomic nervous system
Somatic nervous system
What causes an increase in HR
parasympathetic nervous system
sympathetic nervous system
The baseline rate of the fetal heart is due to (a)
What would you see on the CTG for continued hypoxia
(a)
What would a non reassuring baseline rate be?
105-110bpm
109-115bpm
100-109bpm
90-100bpm
What is a normal baseline rate ?
110-150bpm
110-160bpm
100-160bpm
115- 165bpm
What is a normal baseline variability rate?
5-25 bpm
5-15 bpm
5-30bpm
7-20 bpm
What is the name for an excessive variability rate?
(a)
After how many minutes would you consider an excessively high variability rate to be an indication of hypoxia?
30 minutes
15 minutes
25 minutes
60 minutes
A deceleration is ....
A slowing of the FH of 20bpm for 15 seconds or longer
A slowing of the FH of 15bpm for 25 seconds or longer
A slowing of the FH of 15bpm for 15 seconds or longer
A slowing of the FH of 25bpm for 15 seconds or longer
The reassuring features of an early or variable deceleration are (a)
what might be a non reassuring baseline FH for a 40 weeks gestation fetus?
150-160 bpm
120-130 bpm
130-140 bpm
115-125 bpm
when considering an intrapartum CTG, what is the recommended frequency of "fresh eyes"?
30 minutes
2 hourly
1 hourly
4 hourly
Features of a chemo receptor-mediated deceleration's on a CTG are?
(a)
When should you listen to the FH before you start IIA?
When the fetus is at rest, between a contraction, with a pinard, also when the fetus is active and immediately after a contraction
when the fetus is at rest
Auscultation should be undertaken during fetal activity
listen towards the end of the contraction and for 60 seconds after
What are the 4 principles of IIA
(a)
When should you listen to the FH ?
after every contraction for at least 60 seconds
towards the end of a contraction and then for 60 seconds after
towards the end of a contraction for 60 seconds
with every contraction for at least 60 seconds
What feature of the FH in IIA would raise a concern?
A rising baseline
Reduced variability <5bpm
Excessive variability >25bpm
baroreceptor-mediated deceleration's of the FH
What factors do you need to consider if you hear a non reassuring feature of the FH during IIA?
(a)
What additional good practice messure is suggested by PROMPT ?
Listen to FH towards the end of the contraction and for 60 seconds after
Always use a pinard stethascope
Consider fresh ears every 2 hours
complete a proforma and risk assessment
