Author: Anonymous

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

The urinary sediment(pH5)  of a patient reveals crystals of a yellowish-hue, many of which are barrel shaped in appearance.  These crystals are most likely:

Excretion of increased amounts of δ−aminolevulinic acid indicates:

All species of the genus Neisseria have the capacity to oxidize:

Anti-C3 reagent is used in which of the following procedures?

A CSF specimen is planted on routine microbiological media, incubated at 350C in CO2 and examined after 24 hours.  Consider these results:Chocolate agar: few smallish, grayish colorless coloniesMacConkey agar:  no growth5% sheep BAP:  no growthGram stain:  gram-negative coccobacilli  To confirm your identification, you should perform:

A 4-hour delay in perfoming a prothrombin time would result in:

Detection of a strong immune anti-D in a postpartum specimen from an Rh negative woman would indicate:

DRG’s (Diagnostic Related Groups) is a system of payment by Medicare: