Lab test interpretation
Acyclovir Crystals and Calcium Oxalates in Urine
Acyclovir crystals in urine sediment by microscopy and automated analyzer. Morphology of needle-shaped crystals and differential diagnosis.
Tag
Urinalysis
Lab test interpretation
Waxy Casts in Urine Sediment: Morphology and Microscopy
Detection of waxy casts in native urine sediment with proteinuria. Limitations of automated analyzers and the importance of manual sediment microscopy.
Laboratory methods
24-Hour Proteinuria: Preanalytical Stage Errors
Clinical case: how violation of 24-hour urine collection rules for proteinuria led to falsely low results and delayed diagnosis of nephropathy.
Lab test interpretation
Urinary Casts in Diabetes Mellitus: Morphology and Significance
Microscopy of urine sediment from a diabetic patient: various types of casts in proteinuria, their morphological features, and clinical significance.
Lab test interpretation
Yeast Mycelium in Urinalysis: Microscopy & Identification
Microscopy of urine sediment: detection of mycelium and pseudomycelium of Candida yeast-like fungi amidst squamous epithelial cells in a native preparation.
Lab test interpretation
Uric Acid Crystals in Urine Sediment: Microscopy
Morphology of uric acid crystals in urine sediment microscopy: optical properties, polymorphism, and diagnostic significance of crystalluria.
Lab test interpretation
Renal Epithelial Cells with Fatty Degeneration in Urine
Morphology of renal epithelial cells with fatty degeneration in urine sediment: microscopy of native preparation, size and light refraction of lipid droplets.
Lab test interpretation
Cholesterol Crystals in Urine: Sediment Microscopy
Cholesterol crystals in urine sediment from a nephrology patient. Morphology of rectangular plates with stepped corners under light microscopy.
Lab test interpretation
Neutral Calcium Phosphate Crystals in Urine Sediment
Morphology of neutral calcium phosphate (calcium hydrogen phosphate) crystals in urine sediment. Microscopic features and differential diagnosis.
Lab test interpretation
Acid Ammonium Urate Crystals in Urine Sediment
Morphology of acid ammonium urate (ammonium biurate) crystals in urine sediment. Microscopic examination of a native preparation at ×400 magnification.
Lab test interpretation
Cystine Crystals in Urine Sediment Microscopy
Morphological features of cystine crystals in urine sediment in cystinuria. Identification of characteristic hexagonal plates during microscopy.
Lab test interpretation
Uric Acid Crystals in Urine Sediment: Microscopy
Morphology of uric acid crystals in urine sediment at pH 5.5. Microscopic examination of native preparation: rhomboid forms and rosettes at 400x magnification.