IUGR Flashcards

1
Q

What is the term used for a neonate with a birth weight less than the 10th percentile?

A

SGA

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2
Q

LBW is considered what weight?

A

5 lbs 8oz or 2500g

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3
Q

What type of women have an increased risk of have a baby with IUGR?

A
  1. Previous birth with IUGR
  2. Hypertension
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4
Q

What is the perinatal period?

A

Onset of fetal viability (24 weeks) to 28 days after delivery

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5
Q

What has been found to cause the majority of “unexplained” stillbirths?

A

FGR

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6
Q

T or F? IUGR is the leading cause of perinatal mortality and morbidity

A

False: It is the SECOND leading cause behind preterm birth

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7
Q

Perinatal pathology associated with IUGR

A
  1. Polycythemia
  2. Hypothermia
  3. Hypoglycemia
  4. Hypocalcemia
  5. Meconium Aspiration
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8
Q

Increased risk of cerebral palsy is seen in children with?

A

IUGR as a baby

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9
Q

What is associated with the most severe growth deficits in the fetus?

A

Preeclampsia AKA toxemia

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10
Q

What are the three groups of risk factors of IUGR?

A
  1. Maternal - medical conditions that effect blood circulation
  2. Fetal - all 3 trisomies
  3. Placental - insufficiency
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11
Q

What type of IUGR is known as “head sparing phenomenon”?

A

Asymmetric - HC is larger than the AC

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12
Q

Type of IUGR where all biometric measurements are proportionally reduced?

A

Symmetric - least common

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13
Q

In what trimester does asymmetric IUGR begin?

A

Third

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14
Q

What are the markers for IUGR or LBW?

A

Increased AFP
Decreased PAPP-A

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15
Q

Sonographic findings in IUGR (3)?

A
  1. Echogenic bowel in 2nd trimester
  2. Grade 3 placenta
  3. Decreased cerebellar measurement
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16
Q

A patient comes in for a follow up ultrasound for anatomy NWS on a detailed assessment 12 days ago. Should you perform the full biometric assessment for growth?

A

No, because biometry should only be performed 14 or more days apart

17
Q

What is a NST also known as?

A

Cardiotocography

18
Q

What is an abnormal NST?

A

When there is a lack of two or more accelerations within 40 minutes

19
Q

What does NST measure?

A

FHR and fetal movement

20
Q

What does BPP stand for?

A

Biophysical profile

21
Q

What does a BPP entail?

A
  1. NST
  2. fetal movements
  3. fetal tone
  4. fetal breathing
  5. AFV
22
Q

What BPP score indicates need for further testing?

A

4 or less

23
Q

Does the MCA have a high or low RI?

A

High RI

24
Q

Does uterine artery doppler have a high or low RI?

A

Low RI

25
Q

In a normal pregnancy, does the RI of the UTA increase or decrease with increasing GA?

A

Decreases

26
Q

Are normal ductus venosus waveforms biphasic, monophasic, or triphasic?

A

Biphasic

27
Q

Abnormal DV waveforms have absent, decreased, or reversed flow in the?

A

A-wave

28
Q

Normal umbilical vein doppler shows what kind of flow?

A

Linear forward flow

29
Q

In what trimester does symmetric vs asymmetric IUGR appear?

A

Symmetric: 1st and 2nd

Asymmetric: 3rd

30
Q

What serum analysis markers are suspected for LBW?

A

Low PAPP-A
Increased AFP