Lab test interpretation
Differential Diagnosis of Transudates and Exudates
Criteria for differential diagnosis of transudates and exudates: density, protein, Rivalta test, LDH activity, cholesterol, and cytological composition of effusions.
Tag
Blood Biochemistry
Lab test interpretation
Creatine Kinase MB Higher Than Total: Causes of Macro-CK
Why CK-MB activity exceeds total creatine kinase in biochemical analysis: the phenomenon of macro-CK, isoenzyme interference, and clinical significance.
Laboratory methods
Chylous Serum: Impact on Tests and Elimination Methods
What to do with pronounced chylous serum or plasma: methods for eliminating lipemic interference and rules for issuing laboratory test reports.
Lab test interpretation
Icteric Serum in Hyperbilirubinemia: Critical Bilirubin Levels
Critical levels of total and direct bilirubin in adult patients' biochemical blood tests: visual assessment of pronounced icteric serum.
Lab test interpretation
Interpreting Comprehensive Laboratory Test Results
Key aspects of integrated interpretation for laboratory tests: complete blood count, urinalysis, biochemical markers, and hormonal profile.
Laboratory methods
Chylous Serum and Hyperlipidemia in Laboratory Practice
Causes of chylous serum in severe hyperlipidemia. Impact of lipemia on test results and methods to eliminate preanalytical errors.
Oncohematology
Hook Effect in IgG Measurement in Multiple Myeloma
A clinical case of myeloma with falsely normal IgG due to the hook effect: hyperproteinemia of 160 g/L, prozone phenomenon, and correct serum dilution.
Lab test interpretation
Vitamin D-Deficient Rickets in an Adolescent: A Clinical Case
A clinical case of vitamin D-deficient rickets in an adolescent misdiagnosed as arthritis: 25(OH)D, parathyroid hormone, and alkaline phosphatase in diagnosis.
Lab test interpretation
Critical Hypoglycemia & Errors in Biochemistry Reports
We discuss critical blood glucose levels, the consequences of severe hypoglycemia, and post-analytical errors in biochemical analysis reports.
Lab test interpretation
Algorithm for Differential Diagnosis of Hypomagnesemia
A laboratory algorithm for the differential diagnosis of hypomagnesemia based on the assessment of urinary magnesium excretion, extrarenal, and renal losses.
Lab test interpretation
Elevated ALT, AST, and GGT: Differential Diagnosis
Clinical case review: isolated elevation of ALT, AST, and gamma-GT in a 36-year-old woman. Calculation of de Ritis ratio, search for causes, and examination plan.
Lab test interpretation
Elevated Amylase: Causes and Diagnostic Algorithm
Exploring non-pancreatic hyperamylasemia, the role of salivary gland involvement and macroamylasemia, and a clinical algorithm for patient evaluation.