General microbiology

Trichomonas vaginalis

Trypanosoma gambiense

Leishmania donovani

Trihomonas hominis

Lamblia intestinalis

A lymph node punctate of a patient with suspected protozoa disease was examined. Examination of the stained specimen (Romanovsky’s stain) revealed some crescent bodies with pointed end, blue cytoplasm and red nucleus. What protozoan were revealed in the smears?

1. 
   Toxoplasmas
   
2. 
   Malarial plasmodiums
   
3. 
   Dermotropic leishmania
   
4. 
   Viscerotropic leishmania
   
5. 
   Trypanosomes
   

A puncture sample taken from the lymph node of a patient with preliminary diagnosis of protozoan disease has been investigated. The preparation was processed with Giemsa stain and the following was detected: crescent-shaped bodies with pointed tips, blue cytoplasm and red nuclei. What protozoa have been detected in the preparation?

1. 
   Toxoplasma
   
2. 
   Plasmodium malariae
   
3. 
   Trypanosoma
   
4. 
   Viscerotropic Leishmania
   
5. 
   Dermatotropic Leishmania
   

Examination of a man revealed a protozoan disease that affected brain and caused vision loss. Blood analysis revealed unicellular half-moon-shaped organisms with pointed end. The causative agent of this disease is:

1. 
   Toxoplasma
   
2. 
   Leishmania
   
3. 
   Lamblia
   
4. 
   Amoeba
   
5. 
   Trichmonad
   

A man is ill with a protozoan disease characterized by cerebral affection and loss of sight. Blood analysis revealed halfmoon-shaped unicellular organisms with pointed ends. This disease is caused by:

1. 
   Toxoplasma
   
2. 
   Leishmania
   
3. 
   Lamblia
   
4. 
   Amoeba
   
5. 
   Trichomonad
   

The contents of vesicles that appeared on the mucous membrane of a patient with variola were sent to a virological laboratory. Which of the listed changes were revealed during the smear microscopy?