Tests, Labs & Diagnostic Limits

What a reference interval establishes, why some findings appear only under specific conditions, and where standard testing reaches its limit.

Why Medical Tests Can Miss Intermittent Symptoms

Some symptom patterns appear only with standing, exertion, meals, or during an episode. When the condition of measurement is part of the clinical question — and when a dynamic test adds nothing.

William Love, MD, FMCP-M

Aug 103 min read

What Do Normal Lab Ranges Actually Mean?

A reference interval is not a verdict. How reference ranges, clinical decision limits, treatment targets, and personal baselines differ — and why 'optimal range' is usually the wrong shortcut.

William Love, MD, FMCP-M

Aug 103 min read

Can Small Fiber Neuropathy Occur With a Normal EMG?

Nerve conduction studies assess large fibers and may be normal in small fiber neuropathy. How symptoms, examination, skin biopsy, and functional testing are combined.

William Love, MD, FMCP-M

Aug 103 min read

Normal Labs but Still Feel Sick? What That Does — and Doesn't — Mean

Many people living with persistent symptoms have already undergone medical testing. Blood work may have been performed more than once, sometimes by several different physicians.

William Love, MD, FMCP-M

Aug 94 min read