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General chemistry LOINC 4548-4 Popular

Hemoglobin A1c

Three-month glycemic average. The single most requested metabolic marker in diabetes-prevention and longevity products.

Quick answer: Hemoglobin A1c is ordered as a single LOINC-coded assay (4548-4) on a EDTA whole blood · 2 mL specimen, runs in a CLIA-certified laboratory, and returns structured results in 24 h for US$21 per test.

Specifications

LOINC code
4548-4
Category
General chemistry
Specimen
EDTA whole blood · 2 mL
Turnaround
24 h
Result format
LOINC-coded JSON · signed PDF · FHIR DiagnosticReport
Reference ranges
Included, age- and sex-specific where applicable
Price
US$21 / 검사당

What this test measures

  • HbA1c
  • Estimated average glucose

Sample API response

{`{
  "order_id": "ord_9f2c",
  "test": { "loinc": "${test.loinc}", "name": "${test.name}" },
  "specimen": "${test.sample}",
  "status": "final",
  "results": [
    { "analyte": "…", "value": 0, "unit": "…",
      "ref_range": "…", "flag": "normal" }
  ],
  "performed_by": { "lab": "CLIA 05D…", "npi": "…" }
}`}
Medical disclaimer: progmedlab provides laboratory testing infrastructure, not medical advice. Results are released after review by a licensed clinician; interpretation and treatment decisions belong to the ordering clinician.

Related tests

Comprehensive Metabolic Panel (CMP)

Fourteen analytes covering electrolytes, kidney function, liver enzymes and glucose. The default metabolic baseline for telehealth and chronic-care programs.

Popular
General chemistry LOINC 24323-8 Serum separator tube · 5 mL
US$24 / 검사당 소요 시간 · 24 h

자주 묻는 질문

Can I order tests for patients in the United States?

Yes, with the right clinical wrapper. Consumer-initiated testing in the US requires an ordering clinician or a patient-authorized direct-access model depending on the state. We support both: bring your own clinician network, or use our clinical review partners.

How do results come back?

Three formats, all from the same order: a signed webhook event, a LOINC-coded JSON payload with reference ranges and abnormal flags, and a PDF report. FHIR DiagnosticReport export is available on the platform plan.

What does it cost?

You pay per test. Sandbox keys are free, and pricing in production starts at the listed catalog price with volume tiers from 500 tests per month. There is no setup fee and no per-seat licence.

How do you handle PHI and HIPAA?

PHI is encrypted at rest and in transit, access is logged, and we sign BAAs with covered entities. Data residency options exist for EU and UK customers under GDPR. Full details are on the compliance page.

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CLIA-certified labs · HIPAA-aligned · No subscription