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Source: sputum; small grayish-white colonies on BAP,gram positive cocci, that is catalase, bacitracin and optochin disc  and bile esculin negative.  It doesn’t grow in 6.5% NACl broth and is PYR negative. Choose the best answer:

The erythrocyte morphology would be described as macrocytic normochromic in which of these instances?

The principle of the Kleihauer-Betke test is:  

A 65-year-old male is admitted complaining of weakness, fatigue, and weight loss. Enlarged lymph nodes and bone tenderness are noted.  A CBC is ordered with the following results:            WBC = 100,000/cu mm            RBC = 5.2 x 106/cu mm            Hb = 15.1 g/dl            HCT = 47%            Differential = 15% segs            85% lymphocytes            Many smudge cells are present.  All lymphocytes are small, size variation minimal.  What hematological disorder could this involve?

The modified oxidase test can differentiates which 2 species:

Pretransfusion compatibility testing must include:

Which type of hypersensitivity reaction is associated with cytotoxic reactions?

Which is the most appropriate transfusion therapy for thrombocytopenia due to chemotherapy treatment?  

Given the following electrolyte values:  CL=102 mmol/L, HCO3= 25 mmol/L, what would you expect the sodium concentration to be?

Laboratory results on a patient with a severe bleeding problem are as follows:                         Platelet count                                  200 x 103/mm3                         prothrombin time                             20.0 sec(control 12.0 sec)                         APTT                                               100 sec(control 32.0 sec)                         CORRECTION TESTS                         normal plasma                                      no correction                                     Based on this data, which of the following will provide the additional information to support the diagnosis you suspect?