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On Monday, a patient’s K antigen typing result was positive. Two days later, the patient’s K typing was negative. The patient was transfused with 2 units of FFP. The tech might conclude that the:

Slight hemolysis can cause erroneous laboratory results in which serum analyte?

The direct antiglobulin test is useful for the investigation of all the following EXCEPT:

The glucose level in normal peritoneal fluid should be:

A patient has a normal prothrombin time (PT) and a prolonged activated partial thromboplastin time (aPTT).  To determine if the prolongation of the aPTT is caused by a factor deficiency or a circulating anticoagulant, the technologist should first:

A patient with severe disseminated intravascular coagulation has an FDP result of greater than 200 μg/dL and a clottable fibrinogen value of 50 mg/dL.  The fibrinogen level may have been affected by:

Which of the following patients would be a candidate for RhIg?

Protozoan cysts are found in a wet mount of sediment from ethyl-acetate concentrated material. The cysts are without peripheral chromatin on the nuclear membrane. Each cyst has four nuclei and each nucleus has a large karyosome that appears as a refractive dot. These oval-shaped cysts are most likely:

Which of the following phenotypes will react with Dolichos biflorus lectin?

Which of the following serum constituents is unstable if a blood specimen is left standing at room temperature for a minimum of 8 hours before processing?