Pathophysiology

Any process that results in infection, inflammation, or injury to the kidneys, ureters, bladder, prostate, male genitalia, or urethra may result in hematuria ( Ta.,ble...9..3..:.1 and Iable.93-2). In false hematuria, the urine appears bloody, but dipstick test results are negative for blood, and there are no RBCs on microscopic evaluation ( Table, 93:3). Free hemoglobin, myoglobin, or porphyrins in the urine result in a positive urine test strip reaction for blood but no RBCs on microscopic evaluation.

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TABLE 93-1 Most Common Causes of Hematuria

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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