Exam 8: Clinical Laboratory Procedures

All of the following parasites may have diagnostic forms present in sputum EXCEPT:

The appropriate specific gravity for a zinc sulfate solution used in the flotation method is:

The most sensitive method used to recover Acanthamoeba spp. from eye-care solutions or corneal samples is the:

All of the following parasites or their antigens can be detected using immunology procedures EXCEPT:

Which of the following parasites is autofluorescent?

For which of the following will serology be useful in differentiating acute from long-term infections?

Artifacts found in feces that can be confused with eggs or cysts are:

For which of the following parasites might the examination of as many as six specimens be needed in order to recover the parasite?

Artifacts found in feces that can be confused with Entamoeba coli are:

The best method to recover pinworm eggs is the:

The technique used to reveal microsporidia in fecal smears is the:

The appropriate light adjustment when performing a microscopic examination of a wet mount is:

The chemical found in fecal preservatives that enhances adhesion of parasites to slides prepared for trichrome stain is:

Modified acid-fast stain is used to visualize several parasites including Cryptosporidium parvum. The modification that differentiates this method from that used to stain mycobacteria (AFB) is that in the parasite method:

All of the following fecal preservatives are suitable for acid-fast staining methods EXCEPT:

Which of the following eggs is not easily recovered using the zinc sulfate technique?

If patients must be purged to enhance recovery of parasites, any of the following enemics may be used EXCEPT:

Which of the following stains is used to visualize fecal-concentrated smears?

When performing an ocular micrometer calibration procedure for the 40x objective, the technologist noted that the 40 mark on the ocular micrometer scale lined up exactly with the 0.09-mm line on the stage micrometer scale. The width in millimeters for each ocular scale division is:

The culture medium used to enhance the recovery of Trypanosoma cruzi is: