Urine Specific Gravity Interpretation Tool

Actual independently measured actual urine specific gravity under actual species/age/state/device/protocol-specific caller review bounds in dimensionless relative only to independently applicable caller bounds. Inclusive endpoints, signed margins; method, context, age/state and uncertainty must be independently established. No universal normal range, diagnosis, intervention or safe-use approval.

Description

Urine specific gravity describes urine concentration relative to water under a specified measurement method.

Urine specific gravity describes urine concentration relative to water under a specified measurement method.1

Its interpretation depends on species, patient state and the applicable laboratory or clinical context.

When to use Urine Specific Gravity Interpretation Tool

Use this tool to compare a measurement with the supplied applicable bounds. Establish the animal, measurement protocol, units and independently applicable veterinary prescription or reference.

How to use Urine Specific Gravity Interpretation Tool and understand its results

  1. Establish the animal, measurement protocol, units and independently applicable veterinary prescription or reference.
  2. Enter independentlyMeasuredValue, callerApplicableLowerValue, callerApplicableUpperValue, using the field meanings and rules below, then run the tool.
  3. Read withinCallerScreen. A true result includes both boundaries; inspect signedLowerMargin and signedUpperMargin to see the distance from each bound.
  4. Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
Input fieldMeaningValue typeRequirement
independentlyMeasuredValueIndependently measured valuenumberRequired
callerApplicableLowerValueCaller applicable lower valuenumberRequired
callerApplicableUpperValueCaller applicable upper valuenumberRequired

Enter a finite observation and independently applicable lower and upper bounds in the same units. Require lower≤upper, including equal bounds. Both endpoints pass the inclusive comparison. Return the within-bounds boolean and two signed margins; a negative margin identifies which boundary is exceeded. The implementation does not impose additional physiological ranges or choose the bounds.

within=(lower≤observed≤upper); lowerMargin=observed−lower; upperMargin=upper−observed

Use the matching field units and the exact boundary, ordering and reference rules above.

Output fieldMeaningValue type
resultQualified observation, conditional calculation or referenceobject
result.withinCallerScreenTrue when the measurement is between the supplied bounds, endpoints included.boolean
result.signedLowerMarginObserved value minus the supplied lower bound.number
result.signedUpperMarginSupplied upper bound minus observed value.number
json
{
  "input": {
    "independentlyMeasuredValue": 1.03,
    "callerApplicableLowerValue": 1.01,
    "callerApplicableUpperValue": 1.05
  },
  "output": {
    "result": {
      "withinCallerScreen": true,
      "signedLowerMargin": 0.020000000000000018,
      "signedUpperMargin": 0.020000000000000018
    }
  }
}

Limitations and assumptions

The patient context, observations and applicability of any reference or prescription must be independently established. This result supplies no diagnosis, default dose, treatment selection or assessment of clinical suitability. Passing means only that the supplied measurement is inside the supplied inclusive bounds.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.

Alternative or Complementary methods

For a related step, use Canine UPC Proteinuria Ratio Calculator: The urine protein-to-creatinine ratio compares two concentrations from a matched sample. For a complementary comparison, use Canine SDMA Reference Checker: Symmetric dimethylarginine, or SDMA, is a laboratory measurement requiring assay and clinical context.

References

  1. Urine Specific Gravity Interpretation Tool — tool.io

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