Description
Subtract nonnegative artifacts and unevaluable from positive totalCount, requiring a positive eligible remainder.
Blood-cell research counts require a defined eligible population, exclusion rule, sampled volume, and dilution basis. Their arithmetic fractions and densities are separate from validated laboratory results and clinical reference intervals.
Subtract nonnegative artifacts and unevaluable from positive totalCount, requiring a positive eligible remainder.
When to use this tool
Use Blood Film Artifact Exclusion Count when you need one transparent research count or denominator component.
How to use the tool and how it works
- Enter totalCount, artifacts, unevaluable, categoryCount. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read eligibleCount, categoryFraction. Use the output convention below.
Subtract nonnegative artifacts and unevaluable from positive totalCount, requiring a positive eligible remainder. Divide categoryCount within that remainder by eligibleCount.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| totalCount | Total Count | Required. Safe integer; minimum 1. |
| artifacts | Artifacts | Required. Safe integer; minimum 0. |
| unevaluable | Unevaluable | Required. Safe integer; minimum 0. |
| categoryCount | Category Count | Required. Safe integer; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| eligibleCount | Eligible Count | Required. Safe integer. |
| categoryFraction | Category Fraction | Required. Finite number. |
{
"input": {
"totalCount": 120,
"artifacts": 10,
"unevaluable": 10,
"categoryCount": 25
},
"output": {
"eligibleCount": 100,
"categoryFraction": 0.25
}
}Limitations and assumptions
- Exclusions must be disjoint and appropriate; this arithmetic does not identify artifacts, validate morphology, or establish a clinical differential.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review the complete laboratory protocol, quality controls, uncertainty, and appropriate professional interpretation.
References
Similar or alternative tools
- Blood Film Unknown Cell Denominator
Return recognized plus unknown only when includeUnknown, and unknown divided by the full total including excluded.
- Hematology Differential One Cell Fraction
Add unclassified cells to the denominator only when includeUnclassified, then divide categoryCells by that denominator.