Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 26

Amniocentesis is performed on a woman whose last two pregnancies resulted in stillbirths due to hemolytic disease of the newborn. A screening test performed at the hospital is positive for bilirubin, and the specimen is sent to a reference laboratory for a bilirubin scan. Physicians are concerned when the report comes back negative. What factors would be considered in evaluating this result.

a. Correct specimen was sent

b. Specimen was refrigerated

c. Specimen was exposed to light

d. Specimen reached the reference lab within 30 mins