high-power field


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field

 [fēld]
1. an area or open space, as an operative field or visual field.
2. a range of specialization in knowledge, study, or occupation.
3. in embryology, the developing region within a range of modifying factors.
auditory field the space or range within which stimuli will be perceived as sound.
disturbed energy field a nursing diagnosis defined as a disruption of the flow of energy surrounding a person's being that results in disharmony of the body, mind, and/or spirit.
energy field the flow of energy surrounding a person.
extended field in radiation therapy, such as for malignant lymphoma, an area of irradiation beyond the involved field. See also under irradiation.
high-power field the area of a slide visible under the high magnification system of a microscope.
individuation field a region in which an organizer influences adjacent tissue to become a part of a total embryo.
inverted Y field in radiation therapy, such as for malignant lymphoma, a circumscribed area of irradiation below the diaphragm, covering the spleen, extending down the midline, and branching inferiorly to form tails across the inguinal areas.
involved field in radiation therapy, such as for malignant lymphoma, the irradiated area when irradiation has been limited to sites of detectable macroscopic disease. See also under irradiation.
low-power field the area of a slide visible under the low magnification system of a microscope.
magnetic field that portion of space about a magnet in which its action is perceptible.
mantle field in radiation therapy, such as for malignant lymphoma, a circumscribed area of irradiation around the shoulders and chest, including the neck, clavicular regions, axillae, and mediastinum. See also under irradiation.
morphogenetic field an embryonic region out of which definite structures normally develop.
operating field (operative field) an isolated area where surgery is performed; it must be kept sterile by aseptic techniques (see surgical asepsis). Called also surgical field.
sterile field an operative field that is properly sterile according to surgical asepsis. It includes having all furniture and equipment covered with sterile drapes and all personnel being properly attired.
surgical field operative field.
visual field (F) (vf) the area within which stimuli will produce the sensation of sight with the eye in a straight-ahead position.

high-power field (HPF),

that area of a slide that is visible by light microscopy at high power (approximately 500X).

high-power field

The portion of an object seen when the high-magnification lenses of a microscope are used.
See also: field

field

1. an area or open space, such as an operative field or visual field.
2. a range of specialization in knowledge, study or occupation.
3. in embryology, the developing region within a range of modifying factors.

auditory field
the space or range within which stimuli will be perceived as sound.
field beans
field experiments
experiments conducted on large groups of animals in conditions thought to be average for the particular type of commercial operation.
field fever
leptospirosis.
field fungi
fungi that attack plants that grow in the field. See also storage fungi.
high-power field
the area of a slide visible under the high magnification system of a microscope.
individuation field
a region in which an organizer influences adjacent tissue to become a part of a total embryo.
low-power field
the area of a slide visible under the low magnification system of a microscope.
morphogenetic field
an embryonic region out of which definite structures normally develop.
field nettle
field pea
pisumsativum.
field penny-cress
field poppy
see papaverrhoeas.
sequential field trial
a trial to which additional segments are added as results are obtained in original segments, e.g. concentrating efforts on aspects of the work which appear to be promising.
field trial
see field experiments (above).
visual field
the area within which stimuli will produce the sensation of sight with the eye in a straight-ahead position.
References in periodicals archive ?
In one case, however, there was growth on cultures of the urine obtained by suprapubic aspiration but in the sediment there were [is less than] 10 leucocytes per high-power field.
Esophageal biopsies before and after the 6 weeks of treatment showed that intraepithelial eosinophil counts decreased significantly, from a median of 41 per high-power field to less than 1 per high-power field (Gastroenterology 1995;109:1503-12).
Examination of surgical specimens from the non-CL patients demonstrated a mean number of eosinophils per high-power field of 28.
By examining the number of RBCs per high-power field (HPF) in a fresh-spun urine sample and looking for casts, the need for a specialist consult can be better determined.
Grade 1: [less than or equal to] 5 centroblasts per high-power field (HPF)
The CAP Invasive Breast Cancer Protocol provides a method for pathologists to determine the diameter of their microscope's high-power field by using a ruler and algebra.
Histology is diagnostic when the eosinophil infiltration is greater than 20 eosinophils per high-power field (HPF) in the squamous epithelium.
2] HPF (a) Median Range Ductal 22 266 487 455 198-909 Lobular 9 240 440 455 130-682 Tubular 2 173 316 316 221-410 Mucinous 2 173 316 316 124-511 Medullary 2 292 534 534 401-670 Adenocystic 1 506 927 Papillary 1 252 461 Abbreviation: HPF, high-power field.
Histologic evaluation revealed 7 mitotic figures per high-power field.
The average count of IgG4-positive plasma cells per high-power field was greater than 35 (35.
At this concentration, at least 1 high-power field containing yeast was identified in 11 (92%) of 12 smears.