A woman requires a kidney transplant. Five members of her fa…

A woman requires a kidney transplant. Five members of her family would like to be tested to determine if they are eligible donors. Technologists use sequence-specific oligonucleotide probe hybridization methods to perform HLA typing. Which of the following anticoagulants is preferred when collecting blood from the woman and her family members?

A 57-year-old female sought medical attention for chronic fa…

A 57-year-old female sought medical attention for chronic fatigue, weight loss, and bone pain. Tissue from an abnormal mass was sent to the molecular diagnostics laboratory. Results from flow cytometry indicated the presence of a kappa-restricted B-cell population consistent with lymphoma. To aid in the diagnosis, the sample was further tested for immunoglobulin heavy-chain gene rearrangements by PCR. After electrophoresis of the PCR product, a smear pattern similar to lane 2 in Figure 13-22 was observed.   What is the interpretation of the gel pattern with the smear?