This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Antibody Identification
Prompt focus: A panel shows the patient serum reacting at the antiglobulin phase, and ficin-treated panel cells show enhanced reactions for some specificities while others are destroyed. An antibody whose corresponding antigen is destroyed by ficin would include which of the following?
Why the correct answer works
Anti-Fya
Ficin destroys the Fya antigen, so anti-Fya reactivity is lost on enzyme-treated cells.
Why the tempting wrong answer fails
The tempting wrong answer usually loses because it skips the key condition, priority, or evidence in the prompt.
Plain-language takeaway
Proteolytic enzymes such as ficin destroy antigens of the Duffy and MNS systems while enhancing reactions of Rh, Kidd, and others. Anti-Fya reactivity is abolished because the Fya antigen is destroyed by ficin.
Simple analogy
Think of antibody identification like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.