When the light path in a spectrophotometer is blocked so no light reaches the photodetector, what is the absorbance value?

The clinical laboratory scientist notes the presence of eggs with the following description in the wet mount prepared from the sediment of a concentration procedure: Oval                 thin shelled 58 microns       contains an embryo in the 4 cell stage division The most likely identification is

Examine the Immunofixation Electrophoresis (IFE) results depicted in the picture below and determine which of the following immunoproliferative disease it depicts.     

Which of the following blood group system antigens would show increased reactivity when RBCs are treated with Ficin?

If an alkaline urine has the following microscopic finding, what should the CLS do next?

A CLS spills a bottle of concentrated sulfuric acid and slips in the fluid exposing the lower length of her body to the burning fluid. What should be the best thing another CLS could do?

An Immunocompromised patient presented with multiple lesions on the hands and up the arms. The lesions were cultured and a white creamy colony grew within 24 hours. The gram’s stain of a typical colony demonstrated yeast. The germ tube test was positive and the organism was plated to cornmeal agar. Examination of the colony on agar after 24 hours showed the presence of pseudohyphase and terminal Chlamydoconidia. What is the most appropriate action for the clinical laboratory scientist to take?

NADH functions as a cofactor for what class of enzymes?

A physician provisionally diagnoses a patient as having tularemia and requests acute and convalescent serum samples collected to document infection. Which of the following test results would be indicative of acute infection?

A quantitative D-dimer immunoassay test is performed on a patient using an automated instrument. The value is 1160 ng/mL (110-240 ng/mL). Which of the following best fits this result?