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In a sputum culture from a patient with cystic fibrosis, you recover an aerobe that is oxidase positive and produces mucoid, brown, “gummy” colonies on MacConkey agar.  This organism is probably:

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?

(continued from previous question)  Which procedure will be necessary to provide the safest transfusion?

Pretransfusion compatibility testing must include:

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

A patient just back from Sierra Leone is admitted with high fever and chills. His spleen is enlarged.  A giemsa stained blood smear shows intraerythrocytic  rings, some multiple with occasional “banana” shaped gametocytes.  This patient probably has:

A gram-negative rod isolated from a wound ferments lactose, produces an acid slant and butt on triple sugar iron (TSI) agar, and is oxidase-positive.  What might this organism be?

What type of specimen should be collected for detection of Plasmodium falciparum?

The following substitution studies were performed on a patient’s plasma that had prolonged activated PTT.Patient plasma + normal plasmaFactor VIII,IX,XI deficient plasmas              None of the substitutions corrected the prolonged APTT significantly.  What could be the cause of these results?

Homocysteine’s role in thrombophilia appears to be