- the fifth wheel position on the lead trailer of a B Train must not be located more than 0.3. meters behind the center of the last axle on the lead semitrailer. Weight Limits: - the steering axle weight limit on straight trucks was increased to 7250 kg. - weight limit caps on the second trailer of A and C train double trailer combinations were. removed and replaced by the requirement that the weight of the tractor drive axles + the.
Conclusion. A single serum 2-hCG level on d 11 after embryo transfer has good predictive value for clinical pregnancy outcome in controlled ovarian stimulation cycles and helps to plan the subsequent follow-up.o assess the clinic value of a single maternal serum beta-human chorionic gonadotropin (2-hCG) assay 11 d after embryo transfer in ART pregnancies and to predict pregnancy outcome. A total of 384 pregnancies after embryo transfer were included.
In addition, the urine pregnancy test may be spuriously negative if performed less than 14 days after the embryo transfer. In our practice, we have had patients with a serum beta-HCG level of more than 200 mIU/mL who nevertheless had a negative urine pregnancy test. We advise patients to obtain a blood pregnancy test 12 to 14 days after an IVF embryo transfer and to avoid home pregnancy testing.