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Renal Assay Activity Molar Unit Flag Tool

Convert only with an explicit supplied activity-per-mole factor and basis-known flag; no assay-specific factor is inferred.

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Description

When molarBasisKnown is true, divide activity by that factor; otherwise return molarAmount zero and molarDefined false.

A conversion factor maps a quantity onto a declared reporting basis. For ratios and rates, numerator and denominator units must be made coherent before comparison.

When molarBasisKnown is true, divide activity by that factor; otherwise return molarAmount zero and molarDefined false.

When to use this tool

Use Renal Assay Activity Molar Unit Flag when you need a transparent conversion with factors you already know.

How to use the tool and how it works

  1. Enter activity, suppliedActivityPerMole, molarBasisKnown. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read molarDefined, molarAmount. Inspect molarDefined before interpreting the associated values.

Require a positive suppliedActivityPerMole. When molarBasisKnown is true, divide activity by that factor; otherwise return molarAmount zero and molarDefined false.1

Input fieldMeaning and unitsAccepted input
activityActivityRequired. Finite number.
suppliedActivityPerMoleSupplied Activity Per MoleRequired. Finite number; strictly above 0.
molarBasisKnownMolar Basis KnownRequired. Boolean.
Output fieldInterpretationReturned shape
molarDefinedMolar DefinedRequired. Boolean.
molarAmountMolar AmountRequired. Finite number.
json
{
  "input": {
    "activity": 20,
    "suppliedActivityPerMole": 4,
    "molarBasisKnown": true
  },
  "output": {
    "molarDefined": true,
    "molarAmount": 5
  }
}

Limitations and assumptions

  • Zero is a placeholder when the molar basis is unknown; activity-to-mole conversion is analyte and assay dependent.
  • 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

Verify the laboratory's unit definitions and analyte-specific factors, then compare converted quantities on the same basis.

References

  1. Calculation and input contract: nephrology/renal-assay-activity-molar-unit-flag — tool.io

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