Definitions of chapter 31

Question 1

anemia

Answer 1

the condition of having a deficient number of RBC

Question 2

endoscopic-guided laser photocoagulation

Answer 2

a treatment that uses lasers to separate abnormal placental vascular connections between twins that are suffering from twin–twin transfusion syndrome

Question 3

heterotopic pregnancy

Answer 3

coexisting ectopic and intrauterine pregnancies

Question 4

hypoxia

Answer 4

a shortage of oxygen or decrease in oxygen in the blood

Question 5

hydrops

Answer 5

an abnormal accumulation of fluid in at least two fetal body cavities

Question 6

lambda sign

Answer 6

a triangular extension of the placenta at the base of the membrane is indicative of a dichorionic diamniotic pregnancy; also referred to as the delta sign or twin peak sign

also called delta sign or twin peak sign

Question 7

monozygotic

Answer 7

coming from 1 fertilized ovum or zygote

Question 8

morbidity

Answer 8

the relative frequency of occurrence of a disease

Question 9

mortality

Answer 9

the rate of actuals deaths

Question 10

preeclampsia

Answer 10

pregnancy-induced maternal high blood pressure and excess protein in the urine after 20 weeks’ gestation

Question 11

TTTS

Answer 11

twin to twin transfusion syndrome

shunting of venous or arterial blood from one twin to another through placental circulation

Question 12

ovum

Answer 12

an unfertilized egg