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OB Y3 > M3 Prtrm > Flashcards

M3 Prtrm Flashcards

1
Q

Early preterm AOG

A

before 33 6/7

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2
Q

Late preterm AOG

A

34-36 weeks

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3
Q

Early term AOG

A

37 0/7 to 38 6/7 weeks

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4
Q

Term AOG

A

39-40 6/7 AOG

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5
Q

Define AGA

A

10th-90th percentile of weight to AOG

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6
Q

Define SGA

A

<10th percentile of wt to AOG

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7
Q

Define LGA

A

> 90th percentile

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8
Q

Define LBW

A

1500-2500 g

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9
Q

Define VLBW

A

1000-1500 g

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10
Q

Define ELBW

A

500-1000 g

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11
Q

Signs and Symptoms of preterm labor (5)

A 
WP LMP (When Po LMP?)
Watery Vaginal Discharge
Painful or Painless uterine contractions

Low back pains
Menstrual-like cramps
Pelvic Pressure

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12
Q

Physical examination findings in preterm labor (3)

A

3Cs
Contractions, regular
Cervical Dilatation
Cervical Effacement

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13
Q

What do you call the bulging of membranes into the endocervical canal and protruding at least 25% of cervical length; U or V shaped internal os

A

Funneling

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14
Q

Cervical length at 24 weeks is ____

A

35mm

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15
Q

Short cervix is defined as sonographic cervical length of

A

25mm and less

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16
Q

Value for positive fetal fibronectin

A

> 50 ng/mL

17
Q

When is fetal fibronectin present in cervicovaginal secretions?

A

before 34 weeks

18
Q

Implication of negative fetal fibronectin

A

low probability of delivery within 7 to 14 days even with contractions.

19
Q

Indications of cervical cerclage

A

those with history of recurrent mid-trimester losses and with cervical insuffieciency

Women with short cervix found by sonography

20
Q

This is done when cervical incompetence is recognized in women with threatened preterm labor

A

Rescue cerclage

21
Q

Major causes of preterm labor

A 
(RUMI)
Ruptured membranes
Uterine distention
Maternal-fetal distress
Infection
22
Q

Microorganisms implicated in preterm birth (4)

A 
Fruit GUM
Fusobacterium
Gardnerella vaginalis
Ureaaplasma urealyticum
Mycoplasma hominis
23
Q

True about preterm labor with intact membranes EXCEPT

a. managed much the same as PPROM
b. Delivery before 34 weeks is delayed
c. Amniocentesis to detect infection is recommended
d. Bed rest is the most prescribed intervention

A

C; no evidence to support routine amniocentesis to identify infection

24
Q

Single course corticosteroid therapy done during ___ weeks AOG.

A

24-34 weeks (33 6/7)

25
Q

The following contributes to significant decrease chance of pregnancy continuation to 28 weeks or beyond EXCEPT

a. multiparity
b. membranes extending beyond the external os
c. cerclage before 22 weeks
d. NOTA

A

A; nulliparity

26
Q

Sponataneous rupture of fetal membranes before 37 completed weeks is defined as

A

PPROM

27
Q

Major predisposing factor to preterm premature rupture of membranes

A

Intrauterine infection

28
Q

The following factors contribute to PPROM EXCEPT

a. low socioeconomic status
b. Nutritional Deficiencies
c. Tall
d. Cigarette Smoking

A

C; Short stature

29
Q

How is PPROM more than or equal to 34 weeks managed?

A

Proceed to delivery usually by induction of labor

GBS prophylaxis recommended

30
Q

The following is least appropriate management for PPROM at 24-31 weeks

a. Expectant management
b. GBS prophylaxis
c. Tocolysis
d. Antimicrobials

A

C; Tocolysis, no consensus

31
Q

The following is least appropriate management for PPROM <24 weeks

a. Patient counseling
b. Expectant management or induction of labor
c. GBS prophylaxis
d. Corticosteroids

A

D

32
Q

What is the only reliable indicator for the diagnosis of clinical chorioamnionitis?

A

FEVER

33
Q

What is the recommended tocolytic for PPROM?

A

Magnesium sulfate

34
Q

Antidote for Magnesium sulfate overdose

A

Calcium gluconate

OB Y3 (17 decks)

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