What is the purpose of an acid fast stain?
What is the purpose of an acid fast stain?
The acid-fast stain is a laboratory test that determines if a sample of tissue, blood, or other body substance is infected with the bacteria that causes tuberculosis (TB) and other illnesses.
Is Cyclospora acid-fast?
On a modified acid-fast—stained slide of stool, Cyclospora oocysts typically are variably acid fast (i.e., in the same field, oocysts may be unstained or stain from light pink to deep red or purple). Unstained oocysts characteristically have a wrinkled (hyaline) appearance.
Which parasite is acid-fast?
Acid fast Intestinal parasites – Parasitology isospora cyclospora – sarcocystis – microsporidium – cryptosporidium – balantidiumt.
What is the purpose of acid fast staining quizlet?
What is the purpose of an Acid-Fast stain? It is a differential stain used to detect cells capable of retaining a primary stain when treated with an acid alcohol.
Why is the acid-fast stain clinically useful quizlet?
Why is the acid-fast stain clinically important? The acid-fast stain is used in the diagnosis of TB (Mycobacterium tuberculosis) a significant health concern worldwide. Additionally, this stain is useful in the diagnosis of diseases caused by other members of the genus Mycobacterium (M. avium and M.
What stain is used for cryptosporidiosis?
Modified acid-fast staining procedure is useful for the identification of oocysts (which may be difficult to detect with routine stains, such as trichrome). Cryptosporidium species stain a pinkish-red color on a uniformly green background.
What is meant by acid fast bacilli?
Acid-fast bacillus (AFB) is a type of bacteria that causes tuberculosis and certain other infections. Tuberculosis, commonly known as TB, is a serious bacterial infection that mainly affects the lungs. It can also affect other parts of the body, including the brain, spine, and kidneys.
Are coccidia acid fast?
These results suggest the possibility that coccidia build a waxy coat of acid-fast lipids in the oocyst wall that makes them resistant to environmental stress.
What are the stains used in acid-fast staining?
The primary stain used in acid-fast staining, carbol fuchsin, is lipid-soluble and contains phenol, which helps the stain penetrate the cell wall. This is further assisted by the addition of heat in the form of heat (steam).
