Tuberculosis (TB) Laboratory & Quality Assurance Examination

Negative MGIT tube (left) with clear medium versus a positive MGIT tube (right) showing characteristic granular mycobacterial clumping at the bottom

Encircle the correct Answer of the Following question. 1) What is the full form of LQAS? 2) What are the components of the Quality Assurance system? 3) LQAS is based on… 4) GeneXpert testing detects… 5) The slide positivity rate is determined in LQAS is …

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Incineration Plant: Introduction, Principle, Working Mechanism, Application, and Keynotes

An exhaust stack rises from the roof of the incineration plant facility

Introduction Incineration is a thermal treatment process that combusts organic substances contained in waste materials. These plants are crucial for modern waste management, particularly for hazardous or clinical waste, by providing a sterile, efficient disposal method that reduces the need for landfill space. Modern plants …

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Red Sore on Inner Lip: Common Oral Conditions and Common Care Options

Red Sore on Inner Lip

Red Sore on Inner Lip The image shows a red, oval lesion on the inner lower lip with a small white center, surrounded by an area of inflammation. Common Oral Conditions This visual description is consistent with common oral conditions such as: Common Care Options …

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Pichia kudriavzevii-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Pichia kudriavzevii growth on HiCrome Candida Differential Agar

Introduction Pichia kudriavzevii, formerly known as Candida krusei, is a unique budding yeast that holds a dual status as both a critical industrial organism and an emerging opportunistic pathogen.  Taxonomy: It is the teleomorph (sexual state) of Candida krusei. It has also been historically known as Issatchenkia orientalis. …

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Aerococcus viridans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Aerococcus viridans in Gram staining of culture

Introduction Aerococcus viridans is a gram-positive coccus that rarely infects humans. It usually inhabits hospital environments. Moreover, it exists in air and water. It causes urinary tract infections, endocarditis, and bacteremia. Additionally, it appears in various clinical specimens. Furthermore, laboratories sometimes misidentify it as viridans …

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Candida albicans-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Yeast cells, budding yeasts, and pseudohyphae in KOH mount of sputum microscopic examination

Introduction Candida albicans is a common fungal pathogen in humans. It inhabits mucosal surfaces naturally and colonizes the gastrointestinal tract and genitourinary system frequently. The organism causes infections in both healthy and immunocompromised individuals and adapts quickly to environmental changes within the host. Clinicians report …

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Streptococcus mutans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Streptococcus mutans in wet mount of culture microscopic examination

Introduction Streptococcus mutans is a Gram-positive bacterium that colonizes the human oral cavity. Furthermore, it plays a central role in dental plaque formation. The bacterium adheres to tooth surfaces and forms robust biofilms. Moreover, it metabolizes sugars to produce acids that erode enamel. Additionally, researchers …

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Uremia: Introduction, Diagnosis, Clinical Significance, and Keynotes

Uremic patient's urine under the routine microscopic examination showing numerous red blood cells (RBCs)

Introduction Uremia is a serious condition caused by kidney failure. The word uremia” literally means “urine in the blood. It results when the kidneys cannot remove waste from the blood. Moreover, toxins accumulate and harm vital organs. Patients experience fatigue, nausea, and confusion. Furthermore, they …

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