Thayer-Martin agar
Components
It usually contains the following combination of antibiotics, called VCN inhibitor- Vancomycin, which is able to kill most Gram-positive organisms, although some Gram-positive organisms such as Lactobacillus and Pediococcus are intrinsically resistant
- Colistin, which is added to kill most Gram-negative organisms except Neisseria, although some other Gram-negative organisms such as Legionella are also resistant
- Nystatin, which can kill most fungi
- Trimethoprim, which inhibits Gram-negative organisms, especially swarming Proteus
Clinical implications
A negative culture on Thayer-Martin in a patient exhibiting symptoms of pelvic inflammatory disease most likely indicates an infection with Chlamydia trachomatis.Mnemonics: Thayer-Martin = Thigh-er Martyr = a martyr who keeps trying to get in the thighs of ppl = Gonorrhea selected (selective!) - (Reproduction okay with credits to npprep.blogspot.com)
Post a Comment