Blood in urine: differential laboratory diagnosis

Introduction To Lab Values And Normal Ranges (Health And Medical Video July 2018).

An overview of the methods of laboratory diagnosis in the occurrence of hematuria (blood in urine).

Regardless of which type of hematuria is a patient (microscopic or macroscopic, that is, visible with an unarmed sight), the doctor will ask the following questions:

  • The state of health of the patient at the time of examination, the presence of any diseases in the history, especially if he had already had cases of hematuria.
  • What drugs are currently taken and taken by the patient, including over-the-counter medicines, prohibited drugs or drugs, herbs, dietary supplements or other alternative medicines.
  • Previously affected by the disease. Whether there were accidents, surgical interventions, medical procedures or tests.
  • Departed or sick abroad.
  • The work of the patient: whether it is related to the influence of toxic chemicals.
  • Lifestyle and habits, including smoking, diet and exercise.
  • Have there been problems with urination before, what has changed at the moment.

Laboratory studies conducted after the initial patient survey are as follows:

  • Lacquer test strip: this study is carried out in the laboratory. The strip of specially chemically processed paper is lowered into a container with a portion of urine. It changes the color depending on what substances are present in the urine: blood, protein, glucose or infectious agents. However, under certain conditions, the test may give false positive results.
  • Urine analysis: Usually urine analysis is performed after a test with a litmus strip. The analysis provides more accurate results, which help to determine the cause of blood in urine. This study is conducted in the laboratory. The presence of protein in the urine indicates that the cause of hematuria is kidney-related problems. The urine is examined under a microscope for the presence of erythrocytes, leukocytes (which are present in infectious processes) and other cells and substances that can be detected in the urine.
  • Seeding of urine: a small amount of urine in a sterile container is placed in an incubator. Extremely high bacterial growth indicates an infection of the urinary tract.

In some cases, additional instrumental and screening studies will be required.

Blood in urine: differential laboratory diagnosis

Category Of Medical Issues: Diseases

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