Home / Tests and Numbers
health management

Tests and Numbers

Notes on tests and numbers, written after living with it rather than reading about it.

Choosing a screening package: set the standard first
Tests and Numbers

Choosing a screening package: set the standard first

Most people do not fail at choosing a screening package from misunderstanding it. They fail because understanding is not doing. What follows is the…

Roland PikeRoland Pike·May 22, 2026·4 min read
What to add with family history: a checklist you can tick
Tests and Numbers

What to add with family history: a checklist you can tick

If you have already tried what to add with family history and dropped it, the fault is usually in the setup: a starting point set too high, an…

Malcolm ReidMalcolm Reid·May 16, 2026·4 min read
An abnormal ECG and what follows, from judgement to action
Tests and Numbers

An abnormal ECG and what follows, from judgement to action

Advice on an abnormal ECG and what follows tends to split in two: impossibly complex, or sold as one click. Reality sits between. It needs some…

Rupert SloaneRupert Sloane·May 10, 2026·4 min read
Follow-up rhythm for lung nodules, from judgement to action
Tests and Numbers

Follow-up rhythm for lung nodules, from judgement to action

Anyone who has spent time on follow-up rhythm for lung nodules has a failure story: a strong start, a collapse in the middle, then silence. This is…

Rosalind KerrRosalind Kerr·May 4, 2026·4 min read
Organising years of reports, from judgement to action
Tests and Numbers

Organising years of reports, from judgement to action

If you have already tried organising years of reports and dropped it, the fault is usually in the setup: a starting point set too high, an…

Roland PikeRoland Pike·April 28, 2026·4 min read
The blind spots of employer check-ups: a checklist you can tick
Tests and Numbers

The blind spots of employer check-ups: a checklist you can tick

If you only read one paragraph, read this: the blind spots of employer check-ups depends on how the situation is set up, not on how you feel at the…

Malcolm ReidMalcolm Reid·April 22, 2026·4 min read
Baseline tests in your thirties: knowing when to stop
Tests and Numbers

Baseline tests in your thirties: knowing when to stop

If you have already tried baseline tests in your thirties and dropped it, the fault is usually in the setup: a starting point set too high, an…

Rupert SloaneRupert Sloane·April 16, 2026·4 min read
Which screening tests are worth it first: set the standard first
Tests and Numbers

Which screening tests are worth it first: set the standard first

Most people do not fail at which screening tests are worth it first from misunderstanding it. They fail because understanding is not doing. What…

Rosalind KerrRosalind Kerr·April 10, 2026·4 min read
The blood count lines that matter: knowing when to stop
Tests and Numbers

The blood count lines that matter: knowing when to stop

Separate two things in the blood count lines that matter: the outcome you want and the action you can sustain. When the gap is too wide, shrink the…

Roland PikeRoland Pike·April 4, 2026·4 min read
Reading a four-part lipid panel: cost, time and results
Tests and Numbers

Reading a four-part lipid panel: cost, time and results

Most people want reading a four-part lipid panel to make things better. The workable version of that goal is steadier: a floor you can hit on a bad…

Malcolm ReidMalcolm Reid·March 29, 2026·4 min read
Where fasting glucose stops being normal: knowing when to stop
Tests and Numbers

Where fasting glucose stops being normal: knowing when to stop

If you have already tried where fasting glucose stops being normal and dropped it, the fault is usually in the setup: a starting point set too high,…

Rupert SloaneRupert Sloane·March 23, 2026·4 min read
First steps when uric acid is high: the light version and the full one
Tests and Numbers

First steps when uric acid is high: the light version and the full one

Let us set the limits of first steps when uric acid is high first: it reliably improves a clear story at the follow-up, and it does not deliver…

Rosalind KerrRosalind Kerr·March 17, 2026·4 min read
Why liver enzymes fluctuate: is it worth doing at all
Tests and Numbers

Why liver enzymes fluctuate: is it worth doing at all

Separate two things in why liver enzymes fluctuate: the outcome you want and the action you can sustain. When the gap is too wide, shrink the action…

Roland PikeRoland Pike·March 11, 2026·4 min read
A first pass on thyroid function: cost, time and results
Tests and Numbers

A first pass on thyroid function: cost, time and results

Advice on a first pass on thyroid function tends to split in two: impossibly complex, or sold as one click. Reality sits between. It needs some…

Malcolm ReidMalcolm Reid·March 5, 2026·4 min read
Are tumour markers worth testing: knowing when to stop
Tests and Numbers

Are tumour markers worth testing: knowing when to stop

If you have already tried are tumour markers worth testing and dropped it, the fault is usually in the setup: a starting point set too high, an…

Rupert SloaneRupert Sloane·February 27, 2026·4 min read
What an abdominal ultrasound shows: three months in this order
Tests and Numbers

What an abdominal ultrasound shows: three months in this order

Separate two things in what an abdominal ultrasound shows: the outcome you want and the action you can sustain. When the gap is too wide, shrink the…

Rosalind KerrRosalind Kerr·February 21, 2026·4 min read
What carotid ultrasound tells you: read this before you start
Tests and Numbers

What carotid ultrasound tells you: read this before you start

Anyone who has spent time on what carotid ultrasound tells you has a failure story: a strong start, a collapse in the middle, then silence. This is…

Roland PikeRoland Pike·September 13, 2026·4 min read
When to check bone density: six beginner deviations
Tests and Numbers

When to check bone density: six beginner deviations

Most people do not fail at when to check bone density from misunderstanding it. They fail because understanding is not doing. What follows is the…

Malcolm ReidMalcolm Reid·September 7, 2026·4 min read
Preparing for bloodwork properly: three months in this order
Tests and Numbers

Preparing for bloodwork properly: three months in this order

If you only read one paragraph, read this: preparing for bloodwork properly depends on how the situation is set up, not on how you feel at the time.…

Rupert SloaneRupert Sloane·September 1, 2026·4 min read
How seriously to take a flagged result: a checklist you can tick
Tests and Numbers

How seriously to take a flagged result: a checklist you can tick

Advice on how seriously to take a flagged result tends to split in two: impossibly complex, or sold as one click. Reality sits between. It needs some…

Rosalind KerrRosalind Kerr·August 26, 2026·4 min read