Quality of written information used in Down syndrome screening
โ Scribed by Jenni Murray; Howard Cuckle; Indera Sehmi; Carol Wilson; Andy Ellis
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 62 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0197-3851
No coin nor oath required. For personal study only.
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A study was carried out to assess eight methods of normalizing the level of urinary beta-core human chorionic gonadotropin (hCG) for variable urine concentration. We compared the standard approach--creatinine determination by the Jaffe method--with high performance liquid chromatography (HPLC) measu
Human chorionic gonadotropin (hCG) free beta-subunit levels were determined in 709 control and 13 Down syndrome urine samples from the second trimester of pregnancy. Results were normalized to urine creatinine concentration and converted to multiples of the unaffected pregnancy medium (MOM). The con