Description
One signed trapezoidal flow-volume panel from supplied research waveform values, without a patient flow assessment.
A research diary or bench measurement uses a defined observation window, clock, unit, and reference level. Missing timing, incomplete collection, and unverified measurements affect how a result can be interpreted. Record arithmetic and signal terms describe supplied data without establishing clinical status.
One signed trapezoidal flow-volume panel from supplied research waveform values, without a patient flow assessment.
When to use this tool
Use Uroflow Volume Time One Panel Term when you need a research-record or bench calculation with already supplied measurements, units, and observation boundaries.
How to use the tool and how it works
- Enter startFlow, endFlow, startSeconds, endSeconds. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read meanFlow, panelVolume. Use the output convention below.
Return meanFlow=(startFlow+endFlow)/2 and panelVolume=meanFlow*(endSeconds-startSeconds), requiring endSeconds>=startSeconds.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| startFlow | Start Flow | Required. Finite number. |
| endFlow | End Flow | Required. Finite number. |
| startSeconds | Start Seconds | Required. Finite number. |
| endSeconds | End Seconds | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| meanFlow | Mean Flow | Required. Finite number. |
| panelVolume | Panel Volume | Required. Finite number. |
{
"input": {
"startFlow": 2,
"endFlow": 6,
"startSeconds": 0,
"endSeconds": 5
},
"output": {
"meanFlow": 4,
"panelVolume": 20
}
}Limitations and assumptions
- Flows must be in the chosen volume unit per second and times in seconds. Signed flow is allowed; this single trapezoidal panel does not validate a uroflow trace or provide clinical interpretation.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Use an appropriately validated measurement and analysis method for clinical interpretation. Verify diary completeness, clock conventions, and measurement units before combining these terms into a research summary.
References
Similar or alternative tools
- Uroflow Sample Volume Increment
Integrate one supplied research trace interval by an explicit trapezoid or left-held rule; no uroflow diagnosis.
- Bladder Diary Time Gap
Compare supplied diary timestamps without inferring a clinical frequency threshold.