FULL SOLUTION QUESTIONS AND 100%
VERIFIED ANSWERS GRADED A+ BRAND NEW
2026
◉Which one of the following blood group systems may show a cell
typing change during pregnancy? Answer: Lewis
◉What is the deferral period from donating blood for someone who is or
has taken Tegison© for severe psoriasis? Answer: Permanent deferral
◉Both hemoglobinuria and hemoglobinemia will be present in what
type of reactions? Answer: Acute hemolytic transfusion reactions
◉If the unit is going to be transfused within the collection facility,
autologous blood must always be tested for which of the following
before transfusion? Answer: ABO, Rh
◉Which of the following statements about high-frequency antigens is
correct? Answer: High-frequency antigens are common, but it is
difficult to identify their corresponding antibodies.
,◉The immunoglobulin class responsible for the etiology of Hemolytic
Disease of the Fetus and Newborn (HDFN) is: Answer: IgG
◉Before testing, all cord cells should be thoroughly washed in order to:
Answer: Remove Wharton's jelly
◉An antibody screen utilizing polyethylene glycol (PEG) was
performed. Reaction readings of this antibody screen are analyzed after
immediate spin and again at 37°C incubation with subsequent
centrifugation. How will the centrifugation of the tubes affect the
patient's results? Answer: False positives may be seen
◉Which best describes an A1 individual? Answer: A and A1 antigens
on RBCs and anti-B antibodies in serum.
◉Platelet products will be prepared from a whole blood donation. What
must be used to prevent potential contamination of the platelets with
skin cells and bacteria? Answer: Diversion pouch
◉Which procedure used to obtain a fetal blood sample to monitor
severity of hemolytic disease of the fetus and newborn (HDFN) can also
be used to deliver intrauterine transfusions? Answer: Cordocentesis
◉One risk associated with patients that require chronic transfusions is:
Answer: Transfusion associated graft-versus-host disease (TA-GVHD)
, ◉What is the principle of the Kleihauer-Betke test? Answer: Fetal cells
present in the mother's blood smear contain fetal hemoglobin (Hgb F).
When treated with acid the fetal cells are resistant and will stain pink
with the counter stain.
◉The accepted interval between whole blood donations is: Answer: 8
weeks
◉How long after collection can a patient's sample be used for
compatibility testing? Answer: 72 hours
◉What is the rare phenotype found exclusively in male patients that is
caused by X-linked inheritance from a carrier mother, often
demonstrating a chronic but well-compensated anemia as well as muscle
and nerve disorders? Answer: McLeod
◉Why is Rh immune globulin (RhIg) administered within 72 hours of
delivery to an Rh negative mother if the newborn is found to be D-
positive or weak-D positive? Answer: Prevent fetal cells from initially
sensitizing the mother
◉Which of the following consequences of severe hemolytic disease of
the fetus and newborn (HDFN) is most associated with neonatal death
before or shortly after birth? Answer: Cardiac failure