A gram-negative bacillus produces colorless colonies on MacConkey agar. On the triple sugar iron agar, it produces an acid slant and acidic butt. Based on these reactions, what sugars does the organism ferment?

You are running an enzyme assay that uses the co-enzyme NAD. Its activity is measured in terms of NADH produced. You have obtained the following data: Total volume of assay is 3.0 mL Sample volume is 0.5 mL Absorbance change 7 minutes is 0.350 The molecular extinction coefficient of NADH is 6.22 x 10-3 L/μmol-1/cm-1 and the light path is 1 cm. Calculate the enzyme activity in IU/L.

Which behavioral domain does the following objective fall under? The student will be able to perform a manual WBC count using a hemocytometer

Which of the following anticoagulants is the MOST appropriate when plasma is needed for most clinical chemistry procedures?

After performing and AB screen and detection, you suspect that the patient has and Anti-C. You counted 6 cells that had the C antigen that yielded an agglutination with the patient serum and 11 cells that did not have the C antigen that did not yield an agglutination. You tested 19 cells altogether. What is the p-value for the patient and is the identification valid based on the p-value?

The ristocetin induced platelet aggregation assay is useful in the diagnosis of which of the following coagulation defects?

A bone marrow aspiration performed on a 65-year-old female is 70% cellular with a 1.5:1 myeloid to erythroid ratio and 4% blasts. There are megaloblastoid changes in the erythrocytic precursors. Granulocyte precursors show hypogranularity and increased karyorrhexis. Vitamin B12 (cobalamin) and folic acid levels are within reference range. Which of the following findings correlates with the suspected diagnosis?  

What is considered an indirect cost?

Legionella species require                           for growth.

Which of the following platelet aggregation results is routinely seen when testing platelets from a patient with Glanzmann’s thrombasthenia?