What does an urinalysis commonly help to check for?

Urinalysis is a common laboratory test that examines the physical, chemical, and microscopic properties of urine. This test is particularly valuable in assessing kidney function and identifying potential urinary tract issues. By analyzing various components found in urine, such as proteins, glucose, ketones, and the presence of red or white blood cells, healthcare providers can gain insights into the functioning of the kidneys and the health of the urinary tract. Abnormal results in a urinalysis can indicate conditions such as urinary tract infections (UTIs), kidney disease, and other related disorders, making it an essential tool for diagnosing and monitoring these health issues.

In contrast, the other options focus on conditions that are not primarily assessed through a urinalysis. Respiratory infections are typically evaluated through chest imaging and sputum tests, blood disorders are often diagnosed with blood tests examining cell counts and biochemical markers, and digestive disorders usually require stool tests and imaging studies of the gastrointestinal tract. Thus, the relevance of urinalysis lies predominantly in its ability to identify kidney and urinary tract problems.