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An antibody detection (screen) is performed as part of pretransfusion testing on a patient sample prior to surgery. What type of immunoassay is utilized in the detection of unexpected, preformed, clinically significant antibodies against RBC antigens?

The presence of an absolute lymphocytosis with reactive lymphocytosis in the peripheral blood would suggest which follow-up procedure?

Results of a Kleinhauer-Betke test reveal 2.2% fetal cell in the maternal circulation. How many vials (300ug) of RhIg should be administered if the maternal blood volume is 5000mL?

In order to make 25 mL of a 4% RBC suspension, how much blood is needed?

The most common radiation source in atomic absorption instruments is a

To validate the precision of an instrument, what must be done?

After receiving a 24-hour urine for quantitative total protein, the CLS must first

A unit of fresh frozen plasma (FFP) is thawed at the request of a physician and placed in the blood bank refrigerator at 1-6 degrees C. The physician then decided NOT to transfuse the plasma. Twenty-two hours later, the physician wants to administer the previously thawed unit of fresh frozen plasma to the same patient. The clinical laboratory scientist should

A hematology laboratory in a hospital has determined that the abnormal low RBC control has a mean value of 3.12 x 1012/L. The 95% confidence limits include red cell count values from 3.06 x 1012/L to 3.18 x 1012/L.  One standard deviation for this control is equal to  

An aerobic sheep blood agar plate from a human bite wound culture smelled significantly of hypochlorite. Upon observation, among the mixed respiratory flora, were tiny yellowish colonies sunk into small craters in the medium. Workup of the colonies revealed a small, nonfermenting, gram-negative bacillus that gave the following reactions: Based on the information below, the most likely identification for the organism is   catalase negative urease negative indole negative arginine negative lysine decarboxylase positive