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A prolonged APTT is corrected by mixing the patient’s plasma with Factor IX deficient plasma, but is not corrected by addition of Factor VIII deficient plasma.  What is the patient’s most likely diagnosis?  

A serum protein electrophoresis pattern shows a relative decrease in albumin with a moderate generalized elevation in all gamma globulin fractions. Other protein fractions are normal. This pattern supports a diagnosis of:  

Situation: Results of a chemistry profile are:Glucose = 100 mg/dLBUN = 10 mg/dLTotal Bilirubin = 0.9 mg/dLAlbumin = 4.9 g/dLTotal Protein = 5.1 g/dLWhat should be done next?

A 25-year old woman complains of painful urination and is suspected of having a urinary tract infection. Which of the following specimens should be collected for a routine urinalysis and urine culture?

An RDW of 14% would correlate with which finding on the peripheral blood smear?

Severe Combined Immunodeficiency exhibits:

Impaired DNA metabolism is characteristic of

An EDTA sample is found to be hemolyzed. Which of the following tests would be affected the least?

Four serum specimens were analyzed for electrolytes. Which set of results is most likely in error? (results are in mmol/L)Sodium; Potassium; Chloride; Bicarbonate

Determine the anion gap given the serum electrolyte data: Na = 132 mmol/LCl = 100 mmol/LHCO3-= 22 mmol/LpCO2 = 33 mm/Hg