Alloimmunization

Question 1

What is the chance that a mother becomes isoimmunized adter delivery if she refuses rhogam?

Answer 1

Less than 20%

Question 2

What noninvasive techniques are used to assess/detect fetal anemia?

Answer 2

Doppler missle cerebral artery peak systolic velocity

Question 3

How do we decide how much rhogam to give a mother?

Answer 3

Kleihaur-Betke test or flow cytometry to quantify the volume of fetomaternal hemmohage (10mcg/mL fetal blood so 30ml of fetal blood needs 300 mcg of rhogam)

Question 4

What mnemoic can you use to remember the risk posed by atypical antibodies?

Answer 4

Lewis Lives, Duffy dies, Kell Kills.