Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
Which fixative is commonly used for parasitic stages?
Which fixative is commonly used for parasitic stages?
- Alcohol
- Polyvinyl alcohol (PVA
- Sodium acetate-acetic acid-formalin (SAF
- Formalin (correct)
Which fixative provides excellent preservation of protozoa?
Which fixative provides excellent preservation of protozoa?
- Polyvinyl alcohol (PVA (correct)
- Sodium acetate-acetic acid-formalin (SAF
- Formalin
- Alcohol
What is the purpose of using stains in O&P testing?
What is the purpose of using stains in O&P testing?
- To demonstrate the diagnostic features of cysts and trophozoites of parasites (correct)
- To collect stool specimens
- To fix parasites for examination
- To preserve the morphology of parasites
Which stains are commonly used for routine O&P testing?
Which stains are commonly used for routine O&P testing?
Signup and view all the answers
Which fixative is good for various parasites?
Which fixative is good for various parasites?
Signup and view all the answers
What is the final procedure in the O&P examination?
What is the final procedure in the O&P examination?
Signup and view all the answers
Which fixative can be used for both protozoa and helminths?
Which fixative can be used for both protozoa and helminths?
Signup and view all the answers
What type of collection systems are available for stool collection and fixation?
What type of collection systems are available for stool collection and fixation?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
- Fixatives preserve the morphology of parasites in stool specimens.
- Formalin is an all-purpose fixative commonly used for parasitic stages.
- Sodium acetate-acetic acid-formalin (SAF) is a liquid fixative that is good for various parasites.
- Polyvinyl alcohol (PVA) is a plastic resin that provides excellent preservation of protozoa.
- Single-vial collection systems are available for stool collection and fixation.
- Alcohol can be used as a fixative for protozoa and helminths.
- Stains are used to demonstrate the diagnostic features of cysts and trophozoites of parasites.
- Two common permanent stains used for routine O&P testing are trichrome and iron hematoxylin along with Giemsa stain.
- Specialized stains are available for specific groups of parasites.
- The final procedure in the O&P examination is the preparation and examination of a permanent stained smear.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
