Teratogens

Question 1

at what weeks is the risk of teratogens the highest?

Answer 1

weeks 3-8

Question 2

how are teratogens investigated prenatal?

Answer 2

blood AFP
ultrasound scan - 12 weeks anomaly scan
invasive tests i.e. chorionic villus sampling and amniocentesis

Question 3

how are teratogens investigated postnatal?

Answer 3

hip stability
fingers and toes
testes (descent)
hearing

Question 4

what is the study of when things go wrong during development?

Answer 4

teratology

Question 5

how is congenital rubella syndrome caused?

Answer 5

contraction of german measles when pregnant

Question 6

what 4 main infections can pass through the placenta and affect the developing baby?

Answer 6

ToRCH
Toxoplasma
Rubella
Cytomegalovirus
Herpes

Question 7

what is a tracheoesophageal fistula?

Answer 7

an abnormal connection between the trachea and oesophagus

Question 8

what is an atresia?

Answer 8

an abnormal closure (or absence) of a passage/orifice in the body

Question 9

what is the condition when the lung doesn’t develop properly?

Answer 9

lung agnesis