This issue of Clinics in Laboratory Medicine, Guest Edited by Anthony Odibo and David Krantz, will feature article topics such as: Screening for Chromosomal abnormalities; Cystic fibrosis screening; The role of second-trimester screening, in the post-first trimester screening era; Modifying risk for Aneuploidy with second-trimester ultrasound after a positive serum screen; Cost-effectiveness of Down syndrome screening paradigms; Biochemical and biophysical screening for the risk of Preterm delivery; Pre-implantation genetic diagnosis; Prenatal testing for infectious disease, Thrombophilias, Preeclampsia, Neural Tube Defects; Management of Multiple Pregnancy; Genetic Counseling Issues in Down syndrome Screening; First Trimester Ultrasound Markers; Quality Control of Nuchal Translucency; Clinical Implications of First Trimester Screening; Adverse Pregnancy Outcomes after Positive Screening; First Trimester Combined Screening: Instant Risks Approach.

This issue of Clinics in Laboratory Medicine, edited by Drs. Anthony Odibo and David A. Krantz, covers issues surrounding Prenatal Screening and Diagnosis. Topics examined in this issue include, but are not limited to: Strategies for Implementing cfDNA Testing; Genetic Counselling for Patients Considering Screening and Diagnosis of Chromosomal Abnormalities; Microdeletions/Duplications; Sex Chromosome Abnormalities; First-, Second- and Third-Trimester Screening for Preeclampsia and Intrauterine Growth Restriction; Biophysicial/Biochemical Screening for the Risk of Preterm Labor; Preimplantation Genetic Testing; Toxoplasmosis, Parvovirus and Cytomegalovirus in Pregnancy; and Sleep Apnea and Adverse pregnancy Outcomes.