Urine Microscopy

Fungal Elements in KOH Mount of Urine Microscopy: Introduction, Fungal Elements Observed in Urine KOH Mount, Applications, and Keynotes

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Fungal elements in KOH Mount of Urine Microscopy- Introduction, Fungal Elements Observed in Urine KOH Mount, Applications, and Keynotes

Introduction Potassium Hydroxide (KOH) mount is a simple, rapid, and cost-effective microscopic technique used to detect fungal elements in various clinical specimens, including urine samples. When fungal infection of the urinary tract (funguria) is suspected—especially in immunocompromised, diabetic, or catheterized patients—KOH mount helps visualize yeast …

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Leucine Crystals: Introduction, Identification Features, and Clinical Significance

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Leucine crystal in urine microscopy at a magnification of 1600X

Introduction Leucine crystals are rare urinary findings that typically appear in patients with severe liver disease, such as advanced cirrhosis, severe hepatitis, or metabolic disorders like maple syrup urine disease. They form in acidic urine and indicate a disturbance in amino acid metabolism. Identification Features …

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Sulfonamide Crystals: Introduction, Identification Features, and Clinical Significance

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Sulfonamide (sulfadiazine) crystals in urine sediment microscopy

Introduction Sulfonamide crystals are drug-induced urinary crystals that appear in patients receiving sulfonamide (sulfa) therapy, particularly when urine is acidic, concentrated, or dehydrated. They occur due to precipitation of unmetabolized sulfonamide compounds in urine, especially older drugs like sulfadiazine, which are less soluble in acidic …

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Urate Crystals: Introduction, Identification Features, and Clinical Significance

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Uriate crystals in urinary sediment microscopic examination at a magnification of 1600X

Introduction Urate crystals, also referred to as uric acid crystals, are metabolic by-products of purine metabolism found in urine. They are frequently observed during urine microscopy, especially in patients with altered pH, dehydration, or metabolic disorders. Their presence can be physiological in concentrated urine or …

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Urine Microscopy: Introduction, Principle, Test Requirements, Procedure, Findings, Clinical Significance, and Keynotes

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Epithelial Cells in Urine Microscopy at 1600X Magnification

Introduction Urine microscopy is a laboratory diagnostic method used to examine the microscopic components of urine sediment. It helps detect cells, crystals, casts, microorganisms, and other formed elements. This test is critical in the diagnosis of urinary tract infections (UTIs), renal diseases, systemic disorders, and …

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Funguria-Introduction, Common fungi, Clinical Feature, Lab Diagnosis, Treatment, and Prevention

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Urine sample for fungal culture and KOH mount

Introduction Funguria refers to the presence of fungi in the urine, either due to colonization, contamination, or true urinary tract infection (UTI). It is increasingly reported in hospitalized or catheterized patients, particularly those with immunosuppression, antibiotic overuse, or diabetes. Most cases are asymptomatic, but it …

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RBC Cast: Introduction, Formation, Appearance, Clinical Significance, Contrast with other casts, and Keynotes

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RBC Cast -Introduction, Formation, Appearance, Clinical Significance, Contrast with other casts, and Keynotes

Introduction RBC cast, or red blood cell cast, is a type of urinary cast containing red blood cells embedded within a protein matrix. They are a strong indicator of bleeding within the kidney and are commonly associated with glomerular diseases, such as glomerulonephritis. Its presence in urine sediment …

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Pus cells in Urine lacking growth on Culture Media: Introduction, Possible Reasons, and Keynotes

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Pus cells in Urine lacking growth on Culture Media

Introduction of Pus cells in Urine lacking growth on Culture Media The presence of pus cells (also known as leukocytes or white blood cells) in urine without the growth of microorganisms on culture media can indicate a condition called sterile pyuria. Sterile pyuria refers to …

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