<prompt> Following represents fetal hypoxia except :Excessive foetal movementsMeconium in veex presentationFetal scalp blood pH 7.3Hea rate 100  <response>: Ans. is c i.e. Fetal Scalp pH 7.3 Het. Normal fetal scalp pH ranges from 7.25 to 7.35. Fetal hypoxia is indicated by acidosis or fall in fetal scalp pH to values below normal Not by increase. It is used to corroborate the significance of fetal CTG Cardiotocography Interpretation of Fetal Scalp blood sampling PH Action 7.25 Reassuring 7.20 - 7.25 Repeat in 30 min 7.20 Immediate delivery Normal Pre-acidosis Acidosis When a pregnant woman has history of previous child with Down syndrome. It becomes impoant to know the type of chromosomal defect found in that paicular child because the risk of occurrence in a future pregnancy will be different depending on the type of defect. I am summarizing below the risk of recurrence of Down syndrome in various conditions. Go through them Chromosome Constitution Risk of offspring Affected child Father Mother Trisomy 21 Normal Normal Non Dysjunction age 30 years 2-3 Type age 30 years - Mother age Trisomy 21 due to Unbalanced Normal Carrier 11.9 Translocation viz 1321. 1421 Carrier Normal 2-3 1521, 2221 Trisomy 21 due to Normal Carrier 100 balanced translocation 2121 Carrier Normal 100 In the question, the child has balanced translocation 2121 and her father is a balanced translocation carrier - The risk of recurrence in subsequent pregnancies is 100 as is evident from the table. Remember A FUNDA - In balanced translocation 2121, the risk of recurrence in subsequent pregnancy is 100deg0 - regardless of the fact whether MotherFather is a carrier. 