Question 1

The Kleihauer Betke test was performed using a 1-hour postdelivery maternal blood sample.Results: 10 fetal cells/1000 cells counted It is the policy to add 1 vial of Rh immune globulin to the calculated dose when the estimated volume of the hemorrhage exceeds 20 mL of whole blood.Calculate the number of vials of Rh immune globulin that would be indicated under these circumstances.

Accepted Answer

A)  2
B)  3
C)  4
D)  5E) All of the above
F) A) and B)

Question 2

Why is reverse grouping omitted in the neonatal period for ABO testing?

Accepted Answer

A)  The maternal antibody is identical to that of the newborn.
B)  Newborns do not produce their own antibody until about 4 months.
C)  The newborn's antibody is the same as the paternal antibody.
D)  None of the above is correct.E) A) and B)
F) A) and C)

Question 3

Which of the following best describes the principle of the Kleihauer-Betke test?

Accepted Answer

A)  Fetal hemoglobin is resistant to acid elution and remains in the cell to stain pink,whereas adult cells appear as ghost cells.
B)  Adult hemoglobin is resistant to acid elution and remains in the cell to stain pink,whereas fetal cells appear as ghost cells.
C)  D-positive cells from the fetus form rosettes around the IgG-coated mother's cells.
D)  Indicator cells form rosettes around the fetal D-positive cells.E) A) and B)
F) B) and C)

Question 4

Amniotic fluid analysis showed a marked increase into zone III of the Liley graph.Lecithin-sphingomyelin ratios indicated that the fetal lungs were not mature.Select the most appropriate decision regarding medical intervention.

Accepted Answer

A)  No immediate need for intervention
B)  An intrauterine transfusion
C)  Delivery by cesarean section
D)  None of the aboveE) A) and B)
F) All of the above

Question 5

Which elution method is ideal in the investigation of ABO hemolytic disease of the fetus and newborn?

Accepted Answer

A)  Glycine-acid
B)  Freeze-thaw
C)  Xylene
D)  ChloroformE) A) and B)
F) All of the above

Question 6

In which type of hemolytic disease of the fetus and newborn is the first-born affected?

Accepted Answer

A)  ABO
B)  D
C)  E
D)  ME) B) and D)
F) B) and C)

Question 7

A .3% fetomaternal bleed was determined by a Kleihauer Betke stain of postpartum blood.What is the estimated volume of the fetomaternal bleed expressed as whole blood?

Accepted Answer

A)  10 mL
B)  15 mL
C)  20 mL
D)  25 mLE) None of the above
F) All of the above

Question 8

During a first-trimester prenatal examination,it was determined that a pregnant woman was group A,D-negative with an anti-D titer of 8.What is the most likely course of action?

Accepted Answer

A)  The anti-D is probably from prenatal Rh immune globulin and should be given another dose at birth.
B)  Repeat the titer in 4 weeks to determine if significant if a rise in titer is detected.
C)  The pregnancy is considered high risk,and the mother should be followed up immediately with amniocentesis or percutaneous umbilical cord testing.
D)  None of the above are correct.E) A) and B)
F) A) and C)

Question 9

Select the most common antibody specificity associated with hemolytic disease of the fetus and newborn.

Accepted Answer

A)  Anti-A,B
B)  Anti-C
C)  Anti-D
D)  Anti-KE) A) and D)
F) All of the above

Question 10

To prevent graft-versus-host disease,red blood cells prepared for intrauterine transfusions should be:

Accepted Answer

A)  frozen and deglycerolized.
B)  saline washed.
C)  ABO and D-compatible with the mother.
D)  irradiated.E) B) and C)
F) A) and D)

Exam 11: Hemolytic Disease of the Fetus and Newborn

Which of the following best describes the principle of the Kleihauer-Betke test?

Correct Answer
verified

Which elution method is ideal in the investigation of ABO hemolytic disease of the fetus and newborn?

Correct Answer
verified

In which type of hemolytic disease of the fetus and newborn is the first-born affected?

Correct Answer
verified

During a first-trimester prenatal examination,it was determined that a pregnant woman was group A,D-negative with an anti-D titer of 8.What is the most likely course of action?

Correct Answer
verified

Why is reverse grouping omitted in the neonatal period for ABO testing?

Correct Answer
verified

Select the most common antibody specificity associated with hemolytic disease of the fetus and newborn.

Correct Answer
verified

Correct Answer
verified

Amniotic fluid analysis showed a marked increase into zone III of the Liley graph.Lecithin-sphingomyelin ratios indicated that the fetal lungs were not mature.Select the most appropriate decision regarding medical intervention.

Correct Answer
verified

A .3% fetomaternal bleed was determined by a Kleihauer Betke stain of postpartum blood.What is the estimated volume of the fetomaternal bleed expressed as whole blood?

Correct Answer
verified

To prevent graft-versus-host disease,red blood cells prepared for intrauterine transfusions should be:

Correct Answer
verified

Exam 11: Hemolytic Disease of the Fetus and Newborn

Which of the following best describes the principle of the Kleihauer-Betke test?

Correct AnswerverifiedShow Answer

Which elution method is ideal in the investigation of ABO hemolytic disease of the fetus and newborn?

Correct AnswerverifiedShow Answer

In which type of hemolytic disease of the fetus and newborn is the first-born affected?

Correct AnswerverifiedShow Answer

During a first-trimester prenatal examination,it was determined that a pregnant woman was group A,D-negative with an anti-D titer of 8.What is the most likely course of action?

Correct AnswerverifiedShow Answer

Why is reverse grouping omitted in the neonatal period for ABO testing?

Correct AnswerverifiedShow Answer

Select the most common antibody specificity associated with hemolytic disease of the fetus and newborn.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Amniotic fluid analysis showed a marked increase into zone III of the Liley graph.Lecithin-sphingomyelin ratios indicated that the fetal lungs were not mature.Select the most appropriate decision regarding medical intervention.

Correct AnswerverifiedShow Answer

A .3% fetomaternal bleed was determined by a Kleihauer Betke stain of postpartum blood.What is the estimated volume of the fetomaternal bleed expressed as whole blood?

Correct AnswerverifiedShow Answer

To prevent graft-versus-host disease,red blood cells prepared for intrauterine transfusions should be:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified