Amniotic Fluid Index Calculator
Actual clinically independently measured four-quadrant qualifying vertical pocket depths summed as AFI. Does not identify pockets, exclude cord/fetal parts, estimate fluid volume or establish a universal clinical threshold.
Description
The amniotic fluid index sums four independently qualifying quadrant pocket depths.
The amniotic fluid index sums four independently qualifying quadrant pocket depths.1
The sum describes measured depths rather than a direct fluid volume.
When to use Amniotic Fluid Index Calculator
Use this tool to calculate or review the supplied observations under the stated rules. Establish the observation date, units, measurement context and independently applicable clinical reference or calibrated model.
How to use Amniotic Fluid Index Calculator and understand its results
- Establish the observation date, units, measurement context and independently applicable clinical reference or calibrated model.
- Enter independentlyMeasuredQualifyingQuadrantPocketDepthsCm, using the field meanings and rules below, then run the tool.
- Read result.observedFourQuadrantAfiCm. Use the units and sign conventions below.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| independentlyMeasuredQualifyingQuadrantPocketDepthsCm | Independently measured qualifying quadrant pocket depths cm | list of number | Required |
Require exactly four nonnegative independently qualifying quadrant depths in centimeters. Sum them without pocket qualification or threshold interpretation.
AFIcm=depth1+depth2+depth3+depth4 Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result; its nested fields below contain the actual calculation or selected reference | object |
| result.observedFourQuadrantAfiCm | Observed Four Quadrant Afi Cm | number |
{
"input": {
"independentlyMeasuredQualifyingQuadrantPocketDepthsCm": [
2,
3,
4,
5
]
},
"output": {
"result": {
"observedFourQuadrantAfiCm": 14
}
}
}Limitations and assumptions
Dating evidence, acquisition conditions and applicable clinical references remain independently established. The output describes supplied observations or a conditional model without diagnosing an outcome, choosing a dose or verifying clinical applicability.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above. Extremely large composite outputs are rejected.
Alternative or Complementary methods
For a related step, use Single Deepest Pocket Calculator: A single deepest pocket is the greatest qualifying measured fluid-pocket depth in the supplied inventory. For a complementary comparison, use Total Amniotic Fluid Volume Calculator: A fluid-volume inventory adds independently measured disjoint components in milliliters.
References
-
Amniotic Fluid Index Calculator — tool.io
Similar or alternative tools
- Single Deepest Pocket Calculator
A single deepest pocket is the greatest qualifying measured fluid-pocket depth in the supplied inventory.
- Total Amniotic Fluid Volume Calculator
A fluid-volume inventory adds independently measured disjoint components in milliliters.