A 2-Unit Crossmatch Was Ordered on a Patient in the Emergency

question 35

Multiple Choice

A 2-unit crossmatch was ordered on a patient in the emergency room. The patient's antibody screen was negative. One unit was compatible and the other was incompatible at AHG. If the patient's antibody screen was negative and the donor had no history of antibodies, what could be the reason for this reaction?

• A) The patient's serum has an antibody to a low-frequency antigen not present on screening cells.
• B) The donor has a positive DAT.
• C) The patient's serum has an HTLA antibody.
• D) Options A and B

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Definitions:

Living Organisms

Entities that exhibit the characteristics of life, such as growth, reproduction, and the ability to respond to their environment.

Maltose

A disaccharide sugar formed from two glucose molecules, involved in the breakdown of starch during digestion.

Glucose

A basic form of sugar that serves as a crucial source of energy for living beings and is found in numerous carbohydrates.

Fructose

A simple sugar found in honey and fruit that serves as a major carbohydrate source in the human diet.