Preterm Labor

Question 1

What speculum exam samples would you collect if you were suspicious of preterm?Labor

Answer 1

Fetal fibronectin, culture, wetmount.
And dilation/ cervical length.

Question 2

What does a negative result for fetal fibronectin, predict?

Answer 2

Labor will not start within seven days

Question 3

What is the chance of a woman delivering pre term within 7-14 days with a negative fetal fibronectin, if they are 24-34 weeks?

Answer 3

1-2%

Question 4

Where do you collect the sample for fetal fibronectin and how long do you leave it in place?

Answer 4

Posterior fornix for 10 seconds

Question 5

What antibiotics would you give for PPROM and for how long?

Answer 5

IV ampicillin and erythromyocin every 6 hours for 2 days. Then PO Amp and Erythro every 8 hours for 5 days.

Question 6

What is a common cervical length

Answer 6

3-4 cm or >2.5 cm

Question 7

What cervical length is associated with pre term labor between 18-24 weeks?

Answer 7

> 2.5 cm

Question 8

What are the three drugs used for tocolytic medications in preterm labor?

Answer 8

Nifedipine indomethacin and magnesium sulfate.

Question 10

What is the concern with using indomethacin for stopping preterm Labor?

Answer 10

It can cause premature closure of the ductus arteriosis

Question 11

What is the loading dose and subsequent oral dose for nifedipine, in preterm Labor management?

Answer 11

Loading dose 10-40 mg PO. given in divided doses, then 10-20 mg oral every 4-6 hours.

Question 12

What is the loading dose and following oral dose for magnesium sulfate In preterm labor management?

Answer 12

Loading dose: IV 4-6 g over 20-30 minutes. Then 1-2 g/hr cont. IV infusion.

Question 13

What is the loading dose and oral dose for indomethicn to treat preterm Labor?

Answer 13

Loading dose: 50-100 mg PO, then 25-50 mg PO Q6 hrs for 48 hrs.

Question 14

What is the dose for betamethazone for preterm Labor?

Answer 14

12 mg IM Q24 hrs X 2 dose

Question 15

What is the dose for Dexamethasone for treating preterm Labor.?

Answer 15

6 mg IM Q12 hrs X 4 doses

Question 16

What main complication for the newborn is associated with pre term birth?

Answer 16

Cerebral palsy.

Question 17

What week gestation is considered pre term or premature

Answer 17

<37 weeks

Question 18

What week’s gestation is considered term?

Answer 18

38-42

Question 19

What how many weeks is post term??

Answer 19

42 weeks

Question 20

What’s the difference between post term and post dates?

Answer 20

Post term is after 42 weeks and post dates is anything after EDD.

Question 21

What is the weight designation for low birth weight?

Answer 21

<2500 g (5.5#)

Question 22

What does a AGA stand for?

Answer 22

Appropriate for gestational age

Question 23

What does LGA stand for and what percentile does it associate with?

Answer 23

Large for gestational age >90th percentile.

Question 25

What does SGA stand for and what percentile, is it?

Answer 25

Small for gestational age less than 10th percentile.

Question 26

When are the lungs fully mature for a fetus? And what is the risk if not fully mature.?

Answer 26

After thirty five weeks surfactant is sufficient to keep alveoli of the lungs from collapsing.