Macroscopic Screening and Microscopic Correlations

This set of flashcards focuses on key terms and definitions related to macroscopic and microscopic screening tests in urinalysis.

Macroscopic Screening

Tests that assess visible characteristics of a substance, such as color and clarity.

Microscopic Correlations

Tests that involve examination at a microscopic level to confirm or identify constituents like cells or casts.

Hematuria

The presence of blood in urine.

Hemoglobinuria

The presence of free hemoglobin in urine, indicating hemolysis.

Myoglobinuria

The presence of myoglobin in urine, often associated with muscle injury.

Significance of Clarity

Determines whether the turbidity is pathological or nonpathological.

RBCs

Red blood cells observed in urine, indicative of bleeding.

RBC casts

Tubular casts formed from red blood cells, indicating renal disease.

Nitrite Test

A screening test for bacteria in urine, often indicating a urinary tract infection.

Leukocyte Esterase

An enzyme test identifying the presence of white blood cells, indicating inflammation or infection.

WBC casts

Casts formed from white blood cells, typically indicating nephritis.

Yeast in Urine

Presence of yeast may indicate a fungal infection.