Cellavision (Year 1)

Information for using Cellavision in Year 1. This will focus on WBC categorization/differentials and RBC morphology.

WBC Classes

When classifying WBCs, they can be divided into the following basic categories:

Segmented neutrophils
Eosinophils
Basophils
Lymphocytes
Monocytes
Giant thrombocytes
Smudge cells
Artifacts

Neutrophils

All neutrophils are classified as segmented neutrophils regardless of whether they are band or segmented.

Giant thrombocytes

All platelets that are approximately the size of a red blood cell, or larger are classified as giant thrombocytes.

Smudge cells

Any cell without an intact cell membrane are considered smudge cells. This includes cells that look 'exploded,' or when it is difficult to tell whether it is a cell or not.

Anything that looks like a lysed or broken cell
Anything that appears like it might have been a cell
Platelets (as long as they're not giant platelets, that is to say any platelets smaller than an RBC are considered smudge cells)

Artifacts

Includes any other item that is not included above. For example, this includes stain deposits or debris.

Stain deposits
Stain smears
Debris

RBC Morphology

Grading characteristics on Cellavision

Only grade the following categories:

Polychromatic cells
Hypochromatic cells
Microcytes
Macrocytes
Target cells
Schistocytes
Helmet cells*
Sickle cells
Spherocytes
Elliptocytes
Ovalocytes
Teardrop cells
Stomatocytes
Acanthocytes
Echinocytes
Howell-Jody Bodies
Pappenheimer Bodies
Basophilic Stippling
Parasites
Rouleaux
RBC Agglutination
Non-specific
Giant Platelets
Bite and Blister Cells
Oval Macrocytes
Normal

When the smear is normal or non-specific:

Select ONLY that category (normal OR non-specific) and assign it a value of 3.