Phase of reactivity is primarily at immediate spin (4+) and reactions get weaker at AHG (w+). There is no specific pattern of reactivity and the auto control is negative which rules out an autoantibody. This is a strong cold antibody which is still slightly present after incubation and washing.
Activation and binding of the antibody takes place at room temperature or colder. Eliminating this phase will prevent the antibody from binding. Cold antibodies usually are more of a nuisance to blood bankers and are not clinically significant.
When performing an antibody screen, both the screen cells are 4+ at immediate spin and W+ at AHG. The antibody panel shows 4+ reactions at immediate spin and W+ reactions at AHG and there is no specific match to the reaction pattern. The auto control is negative. What would be a logical next step?
Basophilic stippling is the term used to describe red blood cells that contain tiny particles of RNA within their cytoplasm. Basophilic stippling is associated with many conditions, but is strongly associated with lead poisoning.
Multiple small, dark blue particles scattered throughout the cytoplasm of erythrocytes is/are called:
Dce is found in 4% of whites and 44% of blacks.
DCe is found in 42% of whites and 17% of blacks.
DcE is found in 14% of whites and 11% of blacks.
dce is found in 37% of whites and 26% of blacks.
Blood bank
The most common Rh haplotype among whites is:
Darkfield microscopy allows a lower limit of resolution than bright-field microscopy which helps the tiny spirochetes to be seen in patient samples. In darkfield microscpy, there is a dark background where directly transmitted light is excluded by a dark-field condenser allowing only scattered light to be focused on the specimen. With dark-field microscopy bacteria appear luminous against a dark background.
Which of the following microscopic techniques is best suited for direct examination of the infectious agent of syphilis?
