White blood cells are not normally found in urine, so a normal level is zero or very few (typically 0–5 per hpf). Leukocytes ...

In contrast, all 12 cases of invasive sepsis (5.1%; 95%CI: 2.6–8.7) occurred in 237 infants with urine leukocyte counts above 9 cells/hpf. These differences translated to a relative risk of ...

In vitro urine test (tests for leukocytes and ... test again or consult healthcare provider). If Leukocytes test is negative or trace but Nitrite test is positive: results suggest UTI.