| Marker | What it adds |
|---|---|
| Urine Specific Gravity | Helps describe how concentrated the urine is. |
| Urine Nitrite | A chemical clue that some bacteria may be present. |
| Urine Leukocyte Esterase | A dipstick clue to white cells in urine. |
| Urine RBCs (microscopic) | Looks for red blood cells under the microscope. |
Read the method as well as the result
A dipstick checks chemical reactions. Microscopy looks for cells, crystals, and casts. These findings help explain one another; they are not all measurements of the same thing. [1]
Urine Nitrite A chemical clue that some bacteria may be present.
Urine Leukocyte Esterase A dipstick clue to white cells in urine.
Urine RBCs (microscopic) Looks for red blood cells under the microscope.
Symptoms still matter with negative nitrite
Not all bacteria make nitrite, and urine needs time in the bladder for nitrite to form. A negative result does not rule out a urinary infection. Symptoms and other findings guide whether a culture is needed. [2]
Give the sample a fair chance
Follow the laboratory’s clean-catch and delivery instructions. Tell it about menstruation or collection difficulties, because material from outside the urinary tract can affect the sample. [1] [2]
Do these findings fit my symptoms, and was the sample collected reliably?
Sources & references
Practical-section sources accessed: .
For general health education. Interpreting your result and deciding on tests or treatment requires your health context and a qualified clinician.