A Patient Was Previously Typed as Blood Group O

question 29

Multiple Choice

A patient was previously typed as blood group O. Forward grouping was negative with anti-A and anti-B. Reverse grouping showed reactivity with A₁ cells and B cells. The technologist reported this patient's type as A. What technical error occurred?

• A) Sample misidentified
• B) Failure to add reagents
• C) Clerical error
• D) Sample mix-up

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Definitions:

Installment Note

A debt instrument that requires a series of payments over time, often including both interest and principal.

Annual End-Of-Year

A term typically referring to financial transactions or reports that are calculated, summarized, or finalized at the end of the fiscal year.

Journal Entries

Records of financial transactions in the accounting system, detailing the accounts affected and whether they are debits or credits.

Effective Interest Method

A method of calculating the interest rate on a bond that factors in the actual amount paid over the life of the bond, including any fees or costs.