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

Exercise 14

Amniocentesis is performed on a woman believed to be in approximately the 31st week of gestation. This is the

second pregnancy for this Rh-negative woman with diabetes. Spectrophotometric analysis of the fluid shows a

? A450 of 0.3.

a. Based on the Liley graph, should the physician consider inducing labor?

b. What else must the physician consider prior to inducing labor? The physician decides to induce labor based on apositive Aminostat-FLM.

c. What information did this test provide for the physician?

d. Why did the physician prefer an Aminostat-FLM to an L/S ratio in this situation?

Step 1 of 4

a.

.The physician should consider inducing labor for the patient.

Liley graph:

The severity of hemolytic disease in the new born baby is determined using liley graph.

• In the liley graph, the OD (optical density) wavelength of 450 nm is plotted against gestation age.

• The hemolytic severity value of 0.3 falls in the zone III region, which indicates that the fetus is severely infected.

• Hence, the intervention of physician is required.