Blood Bank and Immunohematology Review

Flashcards covering blood bank testing, antibody screening, IAT/DAT interpretations, and antigen dosage concepts from the lecture notes.

What symptoms or events did the patient deny prior to the physician ordering a type and screen?

The patient denied any syncope episodes or GI bleed.

What initial blood bank typing reactions were observed for Anti-A and Anti-B?

Anti-A showed 4+ and Anti-B showed 0.

According to Learn Haem.Com, what is the purpose of the specified antibody detection process?

To help strengthen the sensitivity of the detection of antibodies and to increase specificity of antibodies.

What were the results for all 3 Screen Cells in the antibody screening?

All 3 Screen Cells showed Positive for IgG.

What were the results of the DAT and Screen III at 37°C?

DAT was negative, while Screen III was positive at 37°C.

What is the overall interpretation of the patient's antibody screening results?

The patient has multiple antibodies.

What does Screen cell I's incubation phase of the IAT suggest about the identity of the antibody?

It shows that it could be an Rh group antibody.

What is the recommended next step after the IAT findings?

To perform an Rh control and an antibody panel to find what specific antibody/antigen is present.

In immunohematology, what does 'showing dosage' mean?

It means stronger agglutination is observed with a red cell antigen expressed from a homozygous gene.

How does antigen expression compare between homozygous and heterozygous genes?

Homozygous genes give a stronger or double-dose expression for an antigen, while heterozygous genes give a single-dose expression.