Nearly 70% of medical decisions depend on lab tests — yet many patients find their results genuinely hard to interpret. In Nigeria, that gap can be the difference between catching a problem early and missing it entirely.
What is health literacy?
Health literacy means being able to access, understand and use health information effectively. It goes beyond reading — it's about comprehending medical advice, prescriptions and, especially, lab results. It also involves the cognitive and social confidence to act on that information and make informed choices.
Why lab-result literacy matters
Misunderstanding lab results can be dangerous. Poor health literacy is linked to more hospitalisations, higher costs and preventable complications. A clear understanding of a lab report, by contrast, lets patients act quickly, reduces anxiety and improves outcomes — studies consistently show that people with higher health literacy have better health and fewer medication errors.
The Nigerian reality
In Nigeria, health literacy remains a pressing concern:
- A significant portion of the population lacks adequate health literacy.
- Only a small share of adolescents demonstrate sufficient health literacy.
- Cultural beliefs, language barriers and complex medical terminology compound the problem.
- Many people attribute illness to non-medical causes, fuelling mistrust of medical advice and scepticism about test results.
Confusion around common tests — malaria, blood-sugar (diabetes), kidney-function and full blood counts — frequently leads to delayed or incorrect treatment.
The real-life impact of low lab literacy
- Patients may misread results, leading to unnecessary medication or delayed treatment — misunderstood malaria tests, for example, cause both overmedication and neglect of other serious illness.
- Chronic illness can worsen unnoticed: a diabetic patient unfamiliar with blood-sugar readings risks severe, avoidable complications.
- Early warnings get ignored — misunderstanding kidney or liver tests can turn a manageable problem into dialysis or a long hospital stay.
- Confusion over basic values like a full blood count can leave anaemia, infection or serious illness undetected until it's too late.
The bottom line
Understanding your results is not the doctor's job alone — it's a shared conversation. Always ask what a test measures, what your numbers mean, and what to do next. Keep copies of your results so trends can be tracked over time. This is exactly why, at Doc2Go, a clinician can walk you through every result in plain language and recommend the right next step — so no important number is ever left unexplained.
What the common tests actually measure
Most results people are handed fall into a handful of categories. Knowing roughly what each one looks at makes the conversation with your doctor a great deal more productive.
- Full blood count (FBC) — red cells, white cells and platelets. It is how anaemia is detected, and how the body's response to infection is assessed.
- Fasting blood glucose and HbA1c — the first is a snapshot; the second reflects average blood sugar over the preceding two to three months, which is why it is used to monitor diabetes control.
- Liver function tests (LFT) — enzymes and proteins that indicate whether liver cells are inflamed or damaged, and how well the liver is doing its work.
- Kidney function tests (KFT) — creatinine, urea and electrolytes, used to estimate how effectively the kidneys are filtering.
- Lipid profile — cholesterol fractions and triglycerides, used as part of cardiovascular risk assessment rather than as a verdict in isolation.
- Urinalysis — a quick, informative screen for infection, blood, protein and glucose.
Reference ranges are not verdicts
The most common misreading of a laboratory report is treating the reference range as a pass mark. It is not. A reference range describes where most results from a reference population fall — and it varies between laboratories depending on the equipment and method used, which is why comparing a result from one lab against another lab's range can mislead.
Ranges also shift with age, sex and pregnancy. A value marginally outside the range may be entirely normal for you, and a value inside it can still represent a meaningful change if it has moved sharply from your own previous result. Trend often matters more than a single point.
Questions worth asking about any result
- What was this test looking for?
- Is this result normal for someone like me — my age, sex and circumstances?
- How does it compare with my last one?
- Does it change my treatment, or are we watching it?
- Does anything need repeating, and when?
- What would make me need to come back sooner?
These six questions convert a page of numbers into a plan. A clinician who cannot answer them in plain language has not finished explaining.
Keep your own records
Very few patients hold their own results, and it costs them. Keeping copies — physically or photographed on your phone — means a new clinician can see your trend instead of starting from zero, avoids repeating tests unnecessarily, and matters enormously if you ever seek a second opinion or treatment abroad, where your history has to travel with you.
Frequently asked questions
What does HbA1c measure?
HbA1c reflects average blood sugar over the preceding two to three months, unlike a fasting glucose which is a single snapshot. That is why it is used to assess longer-term diabetes control rather than day-to-day variation.
Does a result outside the reference range mean something is wrong?
Not necessarily. A reference range describes where most results from a reference population fall, and it varies between laboratories, and with age, sex and pregnancy. A marginally abnormal value may be normal for you, and a value inside the range can still matter if it has moved sharply from your own previous result.
What is the difference between liver and kidney function tests?
Liver function tests measure enzymes and proteins indicating whether liver cells are inflamed or damaged and how well the liver is working. Kidney function tests measure creatinine, urea and electrolytes to estimate how effectively the kidneys are filtering.
What should I ask my doctor about my results?
What the test was looking for, whether the result is normal for someone of your age and sex, how it compares with your last one, whether it changes treatment or is being watched, what needs repeating and when, and what would mean coming back sooner.
Should I keep copies of my own lab results?
Yes. Holding your own records lets a new clinician see your trend rather than starting from zero, avoids unnecessary repeat testing, and is essential if you seek a second opinion or treatment abroad, where your history has to travel with you.