Category: specimen-processing
Total: 13 articles found.Mantoux test
Mantoux test is used for screening as well as diagnosis of tuberculosis caused by Mycobacterium tuberculosis. After infection by M. tuberculosis, the individual develops a delayed hypersensitivity to tuberculin.
Elek's plate test
Elek's test (also known as Elek plate test or Elek gel precipitation test) is an invitro test to test the virulence of Corynebacterium diphtheriae, the causative agent of the infection diphtheria.
X factor, V factor test
X factor (hemin) and V factor (NAD, NADP) tests are done for the identification and/or differentiation of Haemophilus spp., especially the important human pathogen Haemophilus influenzae.
Satellitism test
The Satellitism test is used to identify/differentiate Haemophilus spp. as they require X factor (hemin) and V factor (NAD) for growth. Some species require both factors while others grow well with only one.
DNase test, DNA hydrolysis
DNase test / DNA hydrolysis is used to determine if the test microorganism (bacteria, fungi) is able to hydrolyze DNA and utilize the nucleotides as a source of carbon, phosphate, nitrogen, and energy for growth.
Butyrate Disk test
The butyrate disk test (Tri-butyryl esterase test) is a rapid test used to detect the production of the enzyme butyrate esterase. This test is important identification Moraxella catarrhalis and differentiate it from Neisseria gonorrhea.
Pyrrolidonyl Arylamidase test, PYR
The objective of Pyrrolidonyl Arylamidase/Aminopeptidase (PYR) test is to detect the presence of pyrrolidonyl arylamidase (also known as pyrrolidonyl aminopeptidase or L-pyrrolidonyl-β-naphthylamide) in microorganisms.
Hippurate hydrolysis test
Hippurate hydrolase is an enzyme that reversibly catalyzes Hippurate into sodium benzoate and glycine in the presence of water. Hippurate hydrolysis test uses this principle and adds ninhydrin which deaminates glycine to give purple color.
Coagulase test
The coagulase test is used to differentiate Staphylococcus aureus from coagulase-negative Staphylococcus spp (CoNs).
Sputum sample
Sputum samples can be collected for diagnosis through various processes- Expectorated sputum, Induced, Gastric aspirates, Endotracheal, or Trancheostomy suction specimen, Bronchoscopy, Transtracheal aspirates