respiratory - saonew

[ArchivalUser]

An uncomplicated vaginal delivery of a 30 week gestational age male neonate is followed by Apgar scores of 5 and 7 at 1 minute and 5 minutes. The baby then begins to exhibit increasing respiratory difficulty in the next hour, culminating in the need for intubation and mechanical ventilation. The laboratory test that could best have predicted this occurrence prenatally is:

A Maternal serum alpha fetoprotein

B Chromosome analysis on fetal cells from amniocentesis

C Fluorescence polarization (fpol) on amniotic fluid

D TORCH titers on maternal blood

E Maternal cocaine screen on blood and urine

[ArchivalUser]

C.. for L/S Ratio .. ARDS

[ArchivalUser]

E....?

[ArchivalUser]

A or b??
i go for A?

[ArchivalUser]

C.

[ArchivalUser]

© CORRECT. There is fetal lung immaturity leading to hyaline membrane disease. Tests for fetal lung maturity (usually reached by 35 to 36 weeks), including L:S ratio, phosphatidylglycerol, and fluorescence polarization (fpol) can be done on amniotic fluid.