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25 Cards in this Set
- Front
- Back
All flagellates life cycles possess trophozoite and cyst morphologic forms |
False |
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This flagellate morphologic structure is often not visible under microscopic examination |
Flagella |
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The presence of nonpathogenic flagellates is important because it suggests that |
Contaminated food or drink was consumed by the patient |
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The propose function of the median bodies seen in G.intestinalis are |
Support, Energy, and Metabolism |
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Which specimen type and collection regimen would be most appropriate for the diagnosis of G.intestinalis? |
Multiple stool samples collected on subsequent days |
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G.intestinalis trophozoites attach to the mucosa of the duodenum and feed with the associate of this morphologic structure |
Sucking disk |
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Individuals become infected with G.intestinalis by |
Ingesting contaminated food or drink |
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Individuals at risk for contracting G.intestinalis when camping and hiking are encouraged to take which steps to prevent infection |
Use only bottled water for drinking, cooking and appropriate personal hygiene |
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Key morphologic characteristic of C.mesnili |
Lemon-shaped and presence of a cytosome |
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A liquid stool is the specimen of choice for the recovery of |
Trophozoites only |
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A flagellate trophozoite that could be described as 9 to 12 with one or two nuclei, each with four symmetrically positioned chromatin granules and vacuoles containing bacteria in the cytoplasm |
Dientamoeba fragilis |
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The permanent stain of choice for observing the nuclear features of D.fragilis is |
Iron hematoxylin |
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The specimen of choice for the recovery of T.hominis |
Stool |
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Trichomonas hominis can be transmitted by |
Contaminated milk |
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When E.hominis cysts contain more than one nuclei, where do they tend to be positioned within the cytoplasm? |
At opposite ends of the cell |
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Treatment is always indicated for patients when E.hominis is present on parasite examination |
False |
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The traditional technique and specimen of choice for identifying Retortamonas intestinalis is |
Permanently stained stool |
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Individuals contract R.intestinalis by |
Ingesting infective cysts in contaminated food or drink |
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How far down the body length does the Trichomonas tenax undulating membrane extend? |
Three fourths |
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The specimen of choice for the recovery of Trichomanas tenax is |
Mouth scrapings |
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This prominent structure found in T.vaginalis trophozoites that often extends beyond the body provides the parasite with support |
Axostyle |
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The cyst morphologic form is not known to exist in the life cycle of T.vaginalis |
True |
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T.vaginalis may be recovered in which specimen types |
Urethral discharge (Spun urine, Vaginal discharge, Stool) |
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All cases if T.vaginalis infection result in symptomatic vaginitis in women and urethritis in men |
False |
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Infant infections with T.vaginalis tend to affect which body areas |
Respiratory and eye |