The Role of a Semi-Quantitative Urine Pregnancy Test and Pregnancy Questionnaire After Uterine Evacuation for Undesired Pregnancy of Uncertain Location

The dBest® semi-quantitative urine pregnancy test (Figure 2) is a graduated urine pregnancy test with five different levels of sensitivity: 25 IU/L, 100 IU/L, 500 IU/L, 2000 IU/L, 10000 IU/L. The test detects the level of serum hCG that corresponds to the range between that level and the level above it, i.e. the test would be positive at 500 if the hCG was either 501 or 1999. The tool was validated in a US sample of 196 women, where there was a correlation of 69% between urine hCG and serum hCG. Furthermore, the test had a 10% false negative rate (i.e. recording a level two gradations below the serum level) and a 6% false positive rate (i.e. recording a level two gradations above the serum level)