Understanding Your Test Results

Chapter 15 · Vihang Rahul Vasa

How to Read Your Results: Five Rules

Rule 1. Read it yourself. Open the report. First check that it is your report: your name, the date, the time, and the tests ordered. Then check that every test you were prescribed is covered: is any result missing, or still pending? Then look at every line. It is your body; do not hand the report to someone else unread.

Rule 2. Do not listen to untrained well-wishers. Family and friends mean well, but a report is not a topic for a family chat group.

Rule 3. Do not search the internet for what a value means. The internet will show you the worst case first. It does not know you: your condition, your medicines, or your history.

Rule 4. Do not upload your report to Artificial Intelligence (AI) and ask for an interpretation or a cure. AI does not know your history, your medicines, or your doctor’s plan. A report without context is a report misread.

Rule 5. The answer is simple. Take the report, and a family member, friend, or caretaker with you, to your doctor, so that they too understand your situation and condition. The only interpretation that counts is the one from the person who treats you.

My Own Experience with Rule 4

Rule 4 comes from my own experience. Once, when I was unwell, I had a set of investigations done and, before seeing my doctor, gave the reports to an Artificial Intelligence (AI) tool. It listed what such results can mean, including the serious possibilities. It could not tell me which possibility applied to me: it had never met me, examined me, or heard my history. I read the list, saw the worst item on it, and felt more frightened than before. The same day I took the same reports to my doctor. He examined me, asked the questions a report cannot answer, and reassured me that what I was imagining was not what he was seeing. He began with the most likely explanation, and my health improved within days. In my case the AI was not wrong: it was working without the person attached to the numbers. My doctor had the person in front of him. That is why I follow this rule myself.

Whenever you get your blood test or diagnostic reports done, and if you find the results are way off compared to what was expected, either surprisingly good or alarmingly bad, do not get overjoyed or saddened right away. Unexpected results can occasionally occur for many reasons, including sample handling, timing, or simple variation. A better approach is to confirm an unexpected result through your treating clinician or by repeating the test at an appropriate accredited laboratory. You may also counter-check the reading with your personal glucometer at home. Compare the readings, and refer to the most consistent results: minor variations are normal and perfectly acceptable. This simple habit of cross-verifying will save you from unnecessary panic or false reassurance, and ensure that any decisions you and your doctor make are based on accurate data.

A small but important note on your glucometer: always keep it charged or loaded with fresh batteries, and keep one set of extra batteries in reserve: you do not want a dead meter when you need it most. Take care of your test strips too. Most strips come in a small plastic bottle with a moisture-absorbing material in the cap or as a small packet inside. Do not throw that material away, and do not leave the bottle open: take out one strip and close the cap at once. Keep the strips in their own bottle, never in another container, and away from heat and damp. Strips that have taken in moisture, or have expired, do not look different, but they give wrong readings, and a wrong reading is worse than no reading. Some strips come sealed one by one in foil; those are protected until you open them. And if possible, invest in a spare glucometer: keep one at home and one in your bag, so it travels with you and is within reach at any moment. It is a small investment that gives you the confidence of always having a reliable reading within arm’s reach, wherever you are.

The One Reading That Matters Most: Fix Fasting First

If there is one number I want you to pay the most attention to, it is your fasting plasma glucose (blood sugar). This is the reading you take first thing in the morning, before eating or drinking anything, after an overnight fast. In my over 15 years of experience, I have learnt that getting your fasting plasma glucose (blood sugar) right is the foundation: when it is in range, the other readings become much easier to bring in line. It is the starting point, not the whole answer. When your fasting number is consistently within your target range, your post-meal readings tend to stay in line, and your HbA1c (glycated haemoglobin) naturally improves. But when your fasting plasma glucose (blood sugar) is off, everything else becomes a struggle: no matter how carefully you eat during the day. Think of it as the starting point of your daily race: if you start well, the rest of the day follows. Focus on getting this one number right, and discuss it with your doctor at every visit. It is an important indicator in your daily diabetes management.

A word of balance: while the fasting number is the foundation, it does not tell the whole story by itself. Some people have a perfectly normal fasting reading and yet experience spikes after meals, and these post-meal (post-prandial) rises matter too, because they quietly push up your HbA1c (glycated haemoglobin) even when your mornings look fine. A simple way to keep an eye on both, without doubling your daily pricks: alternate your readings: one day, check your fasting plasma glucose (blood sugar); the next day, check your plasma glucose (blood sugar) two hours after lunch or dinner. Same one reading a day, twice the picture. Discuss this pattern with your doctor and follow the routine they set for you.

Alongside your daily fasting number, keep a close watch on your HbA1c (glycated haemoglobin). Every rise above the target your doctor has set for you raises your risk of long-term damage, and levels that stay high for a long time put your entire body in the danger zone, which is why your doctor will work with you to bring this number down.

(Reference for this chapter: on moisture and the accuracy of glucose test strips: Truong et al., Disaster Medicine and Public Health Preparedness 2014: is listed in Appendix B. Always follow the storage instructions printed on your own strip bottle.)

Illustration: Chapter 15 illustrated summary. Results need personal context: fasting and post-meal plasma glucose, HbA1c, complete report details, the doctor's interpretation, family support, reliable meters and strips, and confirmation of unexpected results..

Chapter 15 Results need personal context: fasting and post-meal plasma glucose, HbA1c (Glycated Haemoglobin), complete report details, the doctor's interpretation, family support, reliable meters and strips, and confirmation of unexpected results.

Chapter at a glance: an AI-generated illustration to be read with the chapter, not instead of it. The people shown are not real.