General microbiology

Entamoeba histolytica.

Entamoeba coli.

Balantidium.

Trichomonad.

Lamblia.

Microscopy of dental plaque revealed unicellular organisms. Their cytoplasm had two distinct layers, barely visible core, wide pseudopodia. The patient is most likely to have:

A. Entamoeba gingivalis B. Entamoeba histolytica
C. Trichomonas tenax D. Lamblia E. Entamoeba coli

40. 
    Carious cavities of a 29-year-old patient contain the parasitic protozoa. It is established that they relate to the Sarcodina class. Specify these single-celled organisms:
    
    1. 
       Entamoeba gingivalis
       

B. Entamoeba histolutica C. Entamoeba coli
D. Amoeba proteus E. Lamblia intestinalis

41. 
    A patient complains of acute spastic abdominal pain, frequent urge to defecate, liquid bloody feces with mucus. Laboratory analysis of fecal smear revealed inconstant in shape organisms with erythrocyte. What is the most likely diagnosis?
    
    1. 
       Amebiasis.
       

B. Lambliasis. C. Schistosomiasis.
D. Intestinal trichomoniasis. E. Balantidiasis.

42. 
    A 40-year-old patient presents with abdominal pain, frequent loose stools with mucus and blood. Stool analysis revealed vegetative forms of some protozoa sized 30-40 microns, with short pseudopodia, containing large amounts of phagocytosed erythrocytes. What protozoan disease does the patient have?
    
    1. 
       Amebiasis
       
    2. 
       Leishmaniasis
       
    3. 
       Trichomoniasis
       
    4. 
       Giardiasis
       
    5. 
       Toxoplasmosis
       
43. 
    Examination of duodenal contents revealed some pyriform protozoa with twin nuclei and four pairs of flagella. There were two supporting filaments between the nuclei and a suctorial disc on the ventral side. What representative of protozoa was revealed in this patient?
    
    1. 
       Lamblia
       
    2. 
       Toxoplasma
       
    3. 
       Leishmania
       
    4. 
       Intestinal trichomonad
       
    5. 
       Trypanosome
       
44. 
    Examination of the duodenal contents revealed some pear-shaped protozoa with two nuclei and four pairs of flagella. The organisms had also two axostyles between the nuclei and a ventral adhesive disc. What protozoan representative was found in the patient?