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A positive test for nitrites in the urine is called nitrituria. This test is commonly used in diagnosing urinary tract infections (UTIs). A positive nitrite test indicates that the cause of the UTI is a Gram-negative organism, most commonly Escherichia coli. The reason for nitrites' existence in the presence of a UTI is due to a bacterial ...
A urine test strip or dipstick is a basic diagnostic tool used to determine pathological changes in a patient's urine in standard urinalysis. [1] A standard urine test strip may comprise up to 10 different chemical pads or reagents which react (change color) when immersed in, and then removed from, a urine sample.
A leukocyte esterase test (LE test) is a urine test for the presence of white blood cells and other abnormalities associated with infection. White blood cells in the urine can indicate a urinary tract infection (UTI). Positive test results may be clinically significant in the right context. The LE test is also used to screen for gonorrhea and ...
Urinalysis is one of the most commonly performed medical laboratory tests. [12] It is frequently used to help diagnose urinary tract infections [13] and to investigate other issues with the urinary system, such as incontinence. [14] It may be used to screen for diseases as part of a medical assessment.
Urinalysis is the most useful test to start the work up in a patient of dysuria. Urinalysis positive for nitrite carries a high predictive value of a positive urine culture. Also, urine dipstick showing leukocytes as equal predictive value as the presence of nitrites. When both are present, the predictive value goes even higher.
e. Reference ranges for urine tests are described below: Measurement. Lower limit. Upper limit. Unit. Urinary specific gravity. 1.003 [1] [2] 1.030 [1] [2]
Bacteriuria is the presence of bacteria in urine. [1] Bacteriuria accompanied by symptoms is a urinary tract infection while that without is known as asymptomatic bacteriuria. [1][2] Diagnosis is by urinalysis or urine culture. [3] Escherichia coli is the most common bacterium found. [1] People without symptoms should generally not be tested ...
MeSH. D000067716. Point-of-care testing (POCT), also called near-patient testing or bedside testing, is defined as medical diagnostic testing at or near the point of care —that is, at the time and place of patient care. [1][2] This contrasts with the historical pattern in which testing was wholly or mostly confined to the medical laboratory ...