Functional Lab Ranges - Clinical Targets

Functional Lab Ranges - Clinical Targets

A Provider Quick Guide to Selected Adult Laboratory Markers

Bring more context to laboratory review with a practical reference that places laboratory intervals, established clinical thresholds, and proposed functional ranges side by side.

Created by Jennifer Gerard, MSN, APRN, FNP-C, IBCLC, this guide helps healthcare professionals compare selected findings, identify questions for further assessment, and document changes over time. Postpartum and lactation considerations connect the material to maternal health and breastfeeding care.

Inside the guide:

• 20 selected markers covering iron status, thyroid function, glucose regulation, lipids, inflammation, vitamins, and minerals.

• Clear distinctions between reference intervals, diagnostic thresholds, treatment targets, and proposed functional ranges.

• Interpretation notes, clinical pearls, and common limitations.

• Postpartum and lactation considerations, including screening after gestational diabetes and maternal–infant vitamin concerns.

• Quick-reference tables and a “What to Order When” framework.

• Serum versus RBC magnesium and zinc testing considerations.

• Printable comparison trackers with prefilled and blank comparison ranges.

• Numbered references supporting the guide’s discussions and numerical comparisons.

Who it’s for

Healthcare professionals seeking a concise laboratory reference, including clinicians supporting postpartum and lactating patients. IBCLCs and allied health professionals may use the educational content to support recognition, communication, and collaboration within their professional scope.

Digital PDF download

For individual professional education and clinical reference. No physical product is shipped.

Important clinical context

Proposed functional ranges are not universally established treatment goals or validated postpartum or lactation-specific targets. This guide does not replace individualized evaluation, established standards of care, or professional judgment. It does not authorize laboratory ordering, diagnosis, prescribing, or treatment outside the reader’s scope.

Licensed for individual professional use. Tracker pages may be printed for the purchaser’s own clinical documentation. Redistribution, resale, and sharing are not permitted.