Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

FALL 2014 OB > Fetal Growth Assessment > Flashcards

Fetal Growth Assessment Flashcards

0
Q

what is at term?

A

38-42

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What is preterm?

A

before 38 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is post term?

A

later than 42 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is IUGR?

A

intrauterine growth restriction (retardation)

decreased rate of fetal growth

fetal weight at or below 10%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the risks with IUGR?

A

antepartum death

perinatal asphyxia

neonatal morbidity

later developmental problems

mortality increases six to ten fold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is SGA?

A

small for gestational age

below 10th percentile without reference to cause

IUGR is a subset of the SGA as a result of a pathologic process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How are SGA and IUGR different?

A

IUGR has a pathological reason behind it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the causes of IUGR?

A

DM - diabetes mellitus

SLE - systemic lupus erythematosus

HTN

placental-uteroplacental insufficency UPI

fetal/genetic abnormalitites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the maternal factors for IUGR?

A

poor maternal nutrition

poor pregnancy weight gain

maternal use of drugs alcohol or smoking

previous history of fetus with IUGR

significant maternal hypertension

presence of uterine anomaly

significant placental hemorrhage

placental insufficiency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the placental factors with IUGR?

A

extensive primary placental infarctions&raquo_space;lead to UPI

maternal and placental factors lead to asymmetric IUGR*

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what are associated with symmetric IUGR?

A

primary fetal developmental anomalies (genetic/or chromosomal)

chronic fetal infections (TORCH)

usually result in first trimester*

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How does the fetus appear with a symmetric IUGR?

A

proportionally small in all physical parameters due to earlier impact

may appear Sonographically BEFORE 20 WEEKS

approx 20-30%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the factors for asymmetric IUGR?

A

cause related to maternal disease states or later developing placental causes

last 8-10 weeks of pregnancy

Typically develops AFTER 24 weeks

more common than symmetric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the maternal reasons behind asymmetric IUGR?

A

maternal disease:

diabetes

chronic HTN

cardiac or renal

abruptio placentae

multiple pregnancy

smoking

poor weight gain

drug usage

uterine anomaly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How do you get an accurate fetal age?

A

last menstrual period

first tri US

standard BPD, AC, HC, FL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the clinical observations for IUGR?

A

decrease fundal height

decreased fetal motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What ratio is most important when assessing for IUGR?

A

HC/AC ratio

17
Q

What are the sonographic parameters for IUGR?

A

HC:

symmetric - less than 3rd% for age

asymmetric - normal growth until very late

IUGR affects fetal liver

AC - single MOST SENSITIVE indicator of IUGR

18
Q

What are you assessing for the biophysical profile?

A

fetal breathing

fetal body movement

metal muscle tone

AFI

fetal heart rate changes (assessed with NST - not done in US)

19
Q

When does fetal breathing become regular?

A

20-21 weeks

20
Q

When does fetal heart rate change in response to fetal movement?

A

12-14 weeks

21
Q

CNS (central nervous system) matures when?

A

slide 21

22
Q

what is acute hypoxia?

A

decrease in breathing, moving and heart rate activity

23
Q

What is severe acute hypoxia?

A

absence of movement/tone

24
Q

What is chronic hypoxia?

A

result of UPI

Oligo and decreased movement is common

25
Q

What is the time for the BPP?

A

timed 30 minutes

Finish slide 23

26
Q

How many fetal gross movements do you need to see?

A

three

definite extremity or trunk movements in 30 minutes for 2 points

fewer than three scores 0

27
Q

What is needed for the AFI in the BPP?

A

slide 27

28
Q

What is fetal tone?

A

slide 28

29
Q

What is NST?

A

slide 29

30
Q

What is quantitative umbilical cord doppler?

A

measure velocity

31
Q

what is qualitative umbilical cord doppler?

A

the characteristics of the waveform

32
Q

if the S/D ratio is more than 3.0 in umbilical artery after 30 weeks what do you suspect?

A

serious abnormality

NEVER have absent or reversed diastolic flow

33
Q

is it normal for there to be diastolic notching after 22 weeks in the uterine artery?

A

no

an S/D of more than 2.6 is abnormal

slide 34

34
Q

What is macrosomia?

A

birth weight is more than 4000grams

above 90th percentile

35
Q

When do you typically find a macrosomic baby?

A

multiparous

> 35 yrs old

pre-pregnancy weight > 154 lb

finish slide 41

36
Q

What is a common reason for macrocomia?

A

maternal diabetes mellitus

37
Q

What are the syndromes in which fetal increase in size with or

A

finish slide 43

38
Q

what are the two types of macrosomia?

A

mechanical

metabolic

39
Q

finish slide

A

45

FALL 2014 OB (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions