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  2. Mycobacteria growth indicator tube - Wikipedia

    en.wikipedia.org/wiki/Mycobacteria_growth...

    Mycobacteria Growth Indicator Tube (MGIT) samples in ultraviolet light. Emission of orange fluorescence indicates the presence of mycobacteria. The samples without fluorescence in this image still reflect some light from the others. Mycobacteria Growth Indicator Tube (MGIT) is intended for the culture, detection and recovery of mycobacteria.

  3. Sputum - Wikipedia

    en.wikipedia.org/wiki/Sputum

    The best sputum samples contain very little saliva, [2] as saliva contaminates the sample with oral bacteria. This is especially true for samples for laboratory testing in cytology or microbiology. Specimen adequacy is assessed by the laboratory technologists by examining a Gram stain or cytology stain of the sputum.

  4. Sputum culture - Wikipedia

    en.wikipedia.org/wiki/Sputum_culture

    Sputum is a thick fluid produced in the lungs and in the adjacent airways. Normally, fresh morning sample is preferred for the bacteriological examination of sputum. [2] A sample of sputum is collected in a sterile, wide-mouthed, dry, leak-proof and break-resistant plastic-container and sent to the laboratory for testing. [2]

  5. Laboratory diagnosis of viral infections - Wikipedia

    en.wikipedia.org/wiki/Laboratory_diagnosis_of...

    For example, different types of samples must be collected in appropriate tubes to maintain the integrity of the sample and stored at appropriate temperatures (usually 4 °C) to preserve the virus and prevent bacterial or fungal growth. Sometimes multiple sites may also be sampled. [citation needed] Types of samples include the following:

  6. Diagnosis of tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_tuberculosis

    The medical history includes obtaining the symptoms of pulmonary TB: productive, prolonged cough of three or more weeks, chest pain, and hemoptysis.Systemic symptoms include low grade remittent fever, chills, night sweats, appetite loss, weight loss, easy fatiguability, and production of sputum that starts out mucoid but changes to purulent. [1]

  7. Laboratory specimen - Wikipedia

    en.wikipedia.org/wiki/Laboratory_specimen

    Variety of microbiological samples. A laboratory specimen is sometimes a biological specimen of a medical patient's tissue, fluids, or other samples used for laboratory analysis to assist in differential diagnosis or staging of a disease process. These specimens are often the most reliable method of diagnosis, depending on the ailment.

  8. Isolation (microbiology) - Wikipedia

    en.wikipedia.org/wiki/Isolation_(microbiology)

    For example, a bacterium that dies when exposed to air, can only be isolated if the sample is carried and processed under airless or anaerobic conditions. A bacterium that dies when exposed to room temperature (thermophilic) requires a pre-warmed transport container, and a microbe that dries and dies when carried on a cotton swab will need a ...

  9. Cytocentrifuge - Wikipedia

    en.wikipedia.org/wiki/Cytocentrifuge

    The cytocentrifugation process can cause cells to appear distorted. Cells located at the centre of the smear may look compressed compared to cells at the periphery. Cell nuclei may develop artifactual clefts, lobes, or holes, [4] and the cytoplasm may appear vacuolated or develop irregular projections. Cytoplasmic granules may be pushed to the ...