Everything we have published, newest first. Use the section links in the header to narrow by area, or the search box to look for a specific test, technique or term.
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ASCP Certification: What the Exam Expects From You
The board exam does not test whether you can recite a method. It tests whether you can decide what to do when a result, a control…
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Biobanking: Storing Human Samples for Decades
Keeping human samples frozen for thirty years is the easy part of biobanking. Knowing what they are, who agreed to what, and how to find them…
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Becoming a Medical Laboratory Scientist: The Realistic Path
The training route into the clinical laboratory is well defined. The parts recruitment material tends to skip are the night shifts, the rotations and the licensing…
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False Positives and Negatives: The Arithmetic of Doubt
A test described as 99 percent accurate can still produce more false positives than true ones. The missing ingredient is how common the condition is.
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Allergen Testing and the May Contain Label Problem
A may contain warning is not a test result. In most places it is a voluntary sentence a manufacturer chose to print, with no required measurement…
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Food Pathogen Testing From Enrichment to Confirmation
A food pathogen test takes days rather than hours because the laboratory must first persuade a handful of injured bacteria to multiply into billions.
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Where Laboratory Reference Ranges Actually Come From
The printed normal range is not a boundary between health and disease. It is a statistical description of where most of a selected healthy group happened…
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How Peer Review Actually Works and Where It Fails
Peer review is often treated as a certificate of truth. It is closer to an informed reading by two or three busy strangers who never see…
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Drinking Water Testing: What Home Test Kits Miss
Home water kits answer a narrow set of questions well and go quiet on most of the contaminants people actually worry about.
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Cortisol Testing: Why Collection Timing Beats the Value
A cortisol result without a clock time and a collection method attached is close to uninterpretable, because the hormone changes several-fold across a day.
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The Reproducibility Crisis Seen From the Bench
Most replication failures are not caused by fraud but by ordinary bench realities: drifting protocols, variable reagents, small samples and selective reporting.
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Good Laboratory Practice and What It Actually Governs
Good Laboratory Practice regulates how a study is documented and traced, not whether the science inside it was any good, and the difference matters.
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Allergy Testing: Blood IgE Versus Skin Prick Tests
Both allergy tests detect antibodies rather than allergy itself, which is why a positive result and a real reaction are not the same finding.
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Supplement Label Accuracy: What Testing Programmes Find
Independent testing of supplements keeps finding the same handful of failures, and knowing which ones are common changes how you read a label.
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Tumour Markers: What They Can and Cannot Tell You
Tumour markers are good at watching a known cancer and poor at finding an unknown one, and the arithmetic behind that difference is worth understanding.
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Laboratory PPE and What Each Layer Actually Protects
Every item of laboratory protective equipment was designed against a specific hazard, and most failures happen when the item is worn against a different one.
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Probiotic CFU Claims and What Survives to the Expiry Date
A probiotic count is a measurement of living cells at one moment, and the moment a manufacturer chooses to measure changes the number more than anything…
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Protein Spiking: How Powders Fake Their Protein Content
Standard protein testing does not measure protein at all; it measures nitrogen and multiplies, and that shortcut is the entire basis of amino spiking.
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Coagulation Testing: PT, INR and aPTT in Plain Terms
The INR is not a biological measurement at all; it is a correction applied to make prothrombin times from different laboratories comparable.
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Spectrophotometry: Measuring Concentration With Light
A spectrophotometer never measures concentration; it measures how much light failed to arrive, and the difference matters as soon as readings stop being linear.
