BLOOD BANK EXAM 1 EXAM REVIEW
QUESTIONS AND CORRECT ANSWERS
◉ Refer to the following results Of the antibody screen and DAT test:
what is most likely presumption?
Answer: One antibody, IGM in class, aloantibody
◉ A 16-year-old female was recently diagnosed with mycoplasma
pneumonia. She is now having a type an antibody screen for an
upcoming surgery. The immediate spin and nobody screen was
positive in both cells. The antibody that would be expected to
identify is:
Answer: Anti-I
◉ You are working on a type and crossmatch for four units PRBCs on
a patient from the ER who is a G.I. bleeder. So far, you have checked
the patient's previous history and do you have completed the
ABO\RH and determined the patient to be B- positive. As you are
working on the antibody screen, the doctor calls and says that the
patient needs two units of RBC emergency released. What group of
RBC do you emergency release?
Answer: B positive
,◉ When is it acceptable to perform an abbreviated crossmatch,
stopping at the IS phase?
Answer: When there is no history of antibodies and the current
antibody screen is negative
◉ Fisher-Race Describes the inheritance of the Rh antigens as
resulting from:
Answer: Three separate closely linked loci
◉ A patient has IV in the middle of both arms. A blood bank
specimen was drawn below the IV in the right arm. Is this specimen
OK to use for blood bank testing?
Answer: Yes
◉ A unit of PRBC was issued to the OR at 2 AM. The patient died
before the unit could be administered, and the unit was returned at
2:45 AM. It was kept in the staff break room refrigerator at 2°C
before being returned to the lab. Can this unit be excepted for re-
issue to another patient.
Answer: No
◉ Which of the following antibodies in the Lutheran system is most
likely to be I GM and detected as a direct agglutinin?
Answer: Anti-Lu^a
, ◉ The numeric RH for nomenclature refers to which antigen in the
Rosenfield notation?
Answer: Little c
◉ The antigen missing in the RH negative individual is
Answer: Big D
◉ All of the following antigens are commonly found on screening
cells except
Answer: Kp^a
◉ The antibody that is enhanced by enzymes is
Answer: Anti-Jk^a
◉ Testing for the week D expression is performed by
Answer: Performing the indirect antiglobulin test with anti-D
◉ If the panel cells were reactive at the same strength at the anti-
human Globulin phase, no negative reactions were observed, and the
auto control was negative, what should be suspected
Answer: Antibody to a high frequency antigen
QUESTIONS AND CORRECT ANSWERS
◉ Refer to the following results Of the antibody screen and DAT test:
what is most likely presumption?
Answer: One antibody, IGM in class, aloantibody
◉ A 16-year-old female was recently diagnosed with mycoplasma
pneumonia. She is now having a type an antibody screen for an
upcoming surgery. The immediate spin and nobody screen was
positive in both cells. The antibody that would be expected to
identify is:
Answer: Anti-I
◉ You are working on a type and crossmatch for four units PRBCs on
a patient from the ER who is a G.I. bleeder. So far, you have checked
the patient's previous history and do you have completed the
ABO\RH and determined the patient to be B- positive. As you are
working on the antibody screen, the doctor calls and says that the
patient needs two units of RBC emergency released. What group of
RBC do you emergency release?
Answer: B positive
,◉ When is it acceptable to perform an abbreviated crossmatch,
stopping at the IS phase?
Answer: When there is no history of antibodies and the current
antibody screen is negative
◉ Fisher-Race Describes the inheritance of the Rh antigens as
resulting from:
Answer: Three separate closely linked loci
◉ A patient has IV in the middle of both arms. A blood bank
specimen was drawn below the IV in the right arm. Is this specimen
OK to use for blood bank testing?
Answer: Yes
◉ A unit of PRBC was issued to the OR at 2 AM. The patient died
before the unit could be administered, and the unit was returned at
2:45 AM. It was kept in the staff break room refrigerator at 2°C
before being returned to the lab. Can this unit be excepted for re-
issue to another patient.
Answer: No
◉ Which of the following antibodies in the Lutheran system is most
likely to be I GM and detected as a direct agglutinin?
Answer: Anti-Lu^a
, ◉ The numeric RH for nomenclature refers to which antigen in the
Rosenfield notation?
Answer: Little c
◉ The antigen missing in the RH negative individual is
Answer: Big D
◉ All of the following antigens are commonly found on screening
cells except
Answer: Kp^a
◉ The antibody that is enhanced by enzymes is
Answer: Anti-Jk^a
◉ Testing for the week D expression is performed by
Answer: Performing the indirect antiglobulin test with anti-D
◉ If the panel cells were reactive at the same strength at the anti-
human Globulin phase, no negative reactions were observed, and the
auto control was negative, what should be suspected
Answer: Antibody to a high frequency antigen
