Blog
Practical guides to blood tests, preventive health and what your results mean — written by our team and reviewed for accuracy.
Some blood tests need fasting, but many do not. This guide explains when fasting matters, what to do before your appointment and why Optimum Health Screening health checks don’t require fasting.
Kidney function blood tests can help show how well your kidneys are filtering waste from your blood. This guide explains creatinine, eGFR, urea, electrolytes and when to speak to your GP.
HbA1c gives an average picture of your blood sugar over the previous two to three months. This guide explains UK HbA1c ranges, what a raised result can mean and when to speak to your GP.
A plain-English guide to five widely used blood tests — what they measure, why they matter and how they fit into a sensible health baseline for adults.
Health screening doesn’t diagnose disease or replace your GP, but it can give you a useful baseline and flag markers worth following up. Here’s an honest guide to what it does, what it doesn’t, and how to choose the right level of check.
What the FIT bowel cancer test detects, who it's for, and what the next steps look like if you get a positive result.
What the PSA blood test measures, how to prepare before the test, and what raised or normal results can mean. A plain-English guide to prostate marker testing.
Articles are no substitute for a check-up. Our health checks start from £125 — no GP referral needed.