FREE ASCP MLS + MLT Study Guide 2026: 10-Week Plan
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A patient has forward typing Anti-A: 4+, Anti-B: 0; reverse typing A1 cells: 0, B cells: 4+. What is the ABO interpretation?
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Free ASCP MLS and MLT study guide with the CAT exam format, scoring, fees, eligibility routes, weighted lab domains, and a practical 10-week plan.
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A patient has forward typing Anti-A: 0, Anti-B: 4+; reverse typing A1 cells: 4+, B cells: 0. What is the ABO interpretation?
Anticoagulated fluid blood component that, when prepared as a fresh frozen unit, must be placed in a freezer within 8 hours and stored at minus 18 degrees Celsius or colder.
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A patient has forward typing Anti-A: 4+, Anti-B: 4+; reverse typing A1 cells: 0, B cells: 0. What is the ABO interpretation?
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Computer Adaptive Testing (CAT)
A patient has forward typing Anti-A: 0, Anti-B: 0; reverse typing A1 cells: 4+, B cells: 4+. What is the ABO interpretation?
Blood collection volunteer who under federal rules must weigh at least 50 kilograms, have a regular pulse of 50 to 100 beats per minute, and wait 8 weeks between single whole-blood collections.
A donor types as D-negative at immediate spin but weak D positive at antiglobulin phase. How should donor Rh type be reported?
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A pregnant patient is Rh-negative with a negative antibody screen at 28 weeks. What is standard prophylaxis?
Cold-insoluble clotting protein concentrate prepared from a single unit of frozen plasma that must average at least 80 units of Factor VIII per container on monthly potency testing.
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Which pretransfusion test is required before issuing non-emergent RBC units?
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A patient has a history of anti-K. Current antibody screen is negative. Which RBC units are appropriate?
Primary blood group system typed by testing red cells with blue-labeled anti-A and yellow-labeled anti-B reagents and confirmed by testing serum against known A1 and B cells.
Which method is acceptable for crossmatch in a patient with no antibodies and no history of antibodies?
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If an Rh-negative patient with anti-D needs urgent RBCs and type-specific units are unavailable, what should be selected first?
Immunohematology assay that detects immunoglobulin or complement already bound in vivo to red blood cells in hemolytic transfusion reactions, autoimmune hemolysis, or newborn hemolysis.
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Panel cells positive for K react at AHG phase; K-negative cells are nonreactive. Most likely antibody?
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Term Match
ABO Forward and Reverse Typing
Reactivity correlates with E antigen-positive cells and all E-negative cells are nonreactive. Most likely specificity?
Coombs reagent available as polyspecific anti-IgG, -C3d with a white container label panel or monospecific formulations with a black container label panel, optionally dyed green.
The antibody reacts at room temperature and 4 C, autocontrol is positive, and specificity is strongest with adult cells. Most likely antibody type?
Question · Medium
Rh(D) Typing
An antibody reacts with D-positive cells and is nonreactive with D-negative cells. Most likely specificity?
Non-immunoglobulin protein extracted from plant seeds or lower animals that selectively agglutinates red blood cells carrying specific carbohydrate blood group antigens.
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An antibody reacts best in enzyme-treated panel cells and is associated with delayed hemolytic transfusion reactions. Which common specificity fits?
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Term Pairs
Antibody Screen
All reagent cells are positive including autocontrol at AHG. What pattern is most consistent?
Alloimmune fetal and neonatal red cell destruction caused by maternal IgG antibodies crossing the placenta to attack paternally inherited antigens such as Rh D or ABO.
A newly identified antibody reacts at immediate spin and is neutralizable by soluble substance. Which category is most likely?
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