gynecology and obstetrics
Preterm Labor
Diagnosis
Clinical evaluation Diagnosis of preterm labor is based on signs of labor and length of the pregnancy. Anovaginal cultures for group B streptococci are done, and prophylaxis is appropriately initiated. Urinalysis and urine culture are done to check for cystitis and pyelonephritis. Cervical cultures are done to check for STIs if suggested by clinical findings. Most women with a presumptive diagnosis of preterm labor do not progress to delivery. 