It is important to examine a minimum of 30 high-power fields
(HPF; 40x magnification) for both the ejaculate and the pelleted sample.
per ml in the voided urine and [is less than] 10 leucocytes per high-power field
, a diagnosis of bacteriuria was made.
In 17 of 31 cases associated with a positive margin, the mean number of pan-nuclear-staining melanocytes within one high-power field
at the margin was 15.
At this point in time, a finding of more than 15 eosinophils per high-power field
on esophageal mucosal biopsy will help to make the diagnosis.
Gram stains were considered positive if they demonstrated more than 10 white blood cells per high-power field
or if clue cells, Gram-negative intracellular/extracellular diplococci, or T.
In the case of the sample described above, urinalysis demonstrated the presence of 443 leukocytes, 162 erythrocytes, and 3 epithelial cells per high-power field
Urinalysis showed 14 red blood cells and 28 leukocytes per high-power field
, no casts, and 3+ proteinuria.
The estimation of white blood count (WBC) per high-power field
(HPF) is simple, fast, and the most commonly used procedure to quantify pyuria in clinical practice.
Eagle-eyed observers might pick up three other small fry in the same high-power field
1% had 15 or more intraepithelial eosinophils per high-power field
(Gut 2007;56:615-20), thereby fulfilling the pathologic portion of the diagnostic criteria for eosinophilic esophagitis.
The esophageal eosinophilia drops from the 15 or more cells per high-power field
(HPF) required for the diagnosis to zero cells or close to it in 4-5 weeks.