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Abog oral boards > Definitions- OB > Flashcards

Definitions- OB Flashcards

1
Q

SGA neonate

A

birth weight <10% for GA

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2
Q

Grand multipara

A

> 4 live births

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3
Q

velamentous cord

A

divergent umbilical vessels at cord insertion to placenta
surrounded only by fetal membranes
no wharton’s jelly

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4
Q

umbilical vein varix

A

focal dilation of umbilical vein located inside fetal abdomen; resolves after birth

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5
Q

spina bifida/tethered cord

A

incomplete closure of vertebra by day 28
cord attached to caudal structures
damage caused by repeated flexion/extension (weakness, bladder sensation etc)

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6
Q

Recurrent pregnancy loss

A

classic definition = 3 or more losses
ASRM recently changed to 2 or more (clinically recognized by sono or pathology < 20 weeks)

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7
Q

Tucker McLane Forceps

A

Solid blade, overlapping shanks with rounder curve, no molding

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8
Q

Simpson-Liukhart forceps

A

pseudofenestrated blade, parallel split shanks with longer curve for molding

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9
Q

Gestational thrombocytopenia

A

diagnosis of exclusion; plts <150; normal outside of pregnancy

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10
Q

retained placenta

A

not delivered with active management by 30 minutes. Longer if physiologic management or 2nd trimester
98% of placentas delivered by then

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11
Q

Postpartum hemorrhage

A

1) cumulative blood loss of >1000 mL
2) bleeding associated with signs or symptoms of hypovolemia within 24h of birth
REGARDLESS OF ROUTE OF DELIVER

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12
Q

Cervical insufficiency

A

inability of the uterine cervix to retain a pregnancy in the second trimester in the absence of clinical contractions, labor or both

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13
Q

polyhydramnios

A

MVP >8 or AFI >24

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14
Q

Accreta

A

abnormal trophoblastic invasion into the myometrium of the uterine wall due to placental implantation at an area of defective decidualization typically caused by preexisiting damage to the endometrial-myometrial interface

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15
Q

Increta

A

anchoring placental villi penetrate into the myometrium

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16
Q

Percreta

A

anchoring placental villi penetrate through the myometrium to the uterine serosa or adjacent organs

17
Q

intraoperative hemorrhage

A

> 1000 mL blood loss; massive hemorrhage refers to acute blood loss >25% of patients blood volume or bleeding that requires emergency intervention to save the patient’s life

18
Q

Chorio

A

T > 39 or T>38+ fetal tacy, WBC >15k or purulent discharge

19
Q

Factor V leiden

A

mutant form of coagulation factor V which renders factor V insensitive to the actions of activated protein C (a natural anticoagulant)

20
Q

Prothrombin gene

A

substitution of adenine (a) for guanine (g) at position 20210 in a non coding region; causes increased concentration of prothrombin in circulation

21
Q

FGR

A

EFW <10% for GA; symmetric = early onset, asymmetric = late onset

22
Q

single umbilical artery

A

one artery; due to secondary atresia or atrophy of a previously normal umbilical artery, primary agenesis of UA, persistence of original single allantoic artery of body stalk

23
Q

umbilical artery doppler

A

evaluation of peak systolic and end-diastolic frequency shift of UA;
measure the pulsatility of the doppler waveform reflecting the dynamic changes in circulation through the cardiac cycle

24
Q

Abnormal S/D ratio

A

Abnormal if > 3 or >95%ile for GA

25
Q

MCA doppler

A

evaluate PSV:normal if <1.5 MoM for GA; do PUBS if >1.5 MoM

26
Q

Tetralogy of Fallot

A

1) VSD
2) overriding Aorta
3) RVOT (pulmonary stenosis)
4) RV hypertrophy
associated with DiGeorge, T21, VACTERL, IV prostaglandin until repair

27
Q

complete/marginal previal

A

low lying if <2 cm from os but not covering os

28
Q

abruption

A

partial or complete placental detachment prior to delivery of fetus

29
Q

discordancy

A

bigger baby - smaller baby / bigger baby
if >20% dont do breech of twin B

30
Q

TTTS

A

relative hypovolemia in one twin and hypervolemia of the other as a result of many or large AV anastomoses deep in the placenta
1) poly/oligo
2) absent bladder
3) abnormal dopplers
4) hydrops
5) IUFD (one or both)

31
Q

T1DM

A

insulin deficiency following destructio of theinsulin producing pancreatic beta cells

32
Q

cholestasis

A

presence of pruritus associated with elevated total serum bile acid levels, elevated aminotransferases or both

33
Q

lie

A

longitudinal, transverse, oblique

34
Q

presentation (denominator)

A

occpiut
sacrum
mentum
frontum (brow)
scalpula

35
Q

position

A

left/right; ant/post

36
Q

attitude

A

flexed, extended, neutral

37
Q

Massive transfusion

A

1) transfusion of 10 or more units of pRBCs within 24h
2) 4 units in 1 hour with ongoing need of more blood anticipated
3) replacement of whole blood volume

Abog oral boards (17 decks)

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