Apgar Score Reference Sheet

Inspectable records

Ledger state

The current ledger marks this instrument verified clean within the source-bound verification corpus.

Area

Biology, Medicine & Pharmacology (educational estimates only — every panel labeled not-medical-advice)

Tranche

tranche-4

Evidence ID

t4-275

Ledger rows

1

No ledger note is attached.

Review findings

The stated formula is the standard Apgar total: sum of five components, each scored 0-2, producing a valid range of 0-10. No unit conversion is applicable.

Formula and scope findings

No additional record

Unit assumptions

• Each input is an integer Apgar rubric score from 0 through 2, not a raw measurement.
• Heart rate, respiration, muscle tone, reflex irritability, and color are scored according to the standard Apgar rubric before entry.
• The total is dimensionless and ranges from 0 to 10.

Boundary hardening

BREAK_CLAIMED · SELF_FLAGGED

The extreme-magnitude vector exposes a likely robustness hazard: without strict 0-2 validation, plain JavaScript arithmetic produces Infinity rather than a bounded 0-10 result. The branch and convention probes also show that invalid component values and clinically interpreted color descriptions require explicit validation and rubric labeling.

Errata and corrections

No applied erratum is attached to this unique-name record.

Inspectable example

4 review vectors are recorded. One source-bound sample is shown below.

{
  "inputs": {
    "heart_rate": 0,
    "respiration": 0,
    "muscle_tone": 0,
    "reflex": 0,
    "color": 0
  },
  "expected_outputs": {
    "total_apgar_score": 0
  },
  "working": "0 + 0 + 0 + 0 + 0 = 0"
}

Related workflows

No source-defined multi-instrument workflow membership is recorded.

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json · VERIFIED_CLEAN
• evidence-tranche4/tranche4-results.json
• BOUNDARY_HAZARD_CATALOG.json