Blood tests: how often to have them and which ones
Blood tests: how often to have them and which ones
Blood tests are one of the most important tools to assess your health. A few tests can give valuable information about how the body is working and identify any imbalance before it turns into a more serious problem.
That is why it is advisable to have blood tests regularly, even when you have no particular symptoms. Parameters such as the full blood count, blood sugar, lipid profile, liver and kidney function, electrolytes and many others give your doctor an up-to-date overall picture.
How often you need them varies: for most people a yearly check-up is enough, while conditions such as chronic disease, long-term medication, specific diets or intense sport require more frequent monitoring.
At the CalatafimiMed Analysis Laboratory, our professionals are on hand to offer tailored prevention programmes and fast, accurate answers.
What do routine blood tests check?
“Basic” tests are the first step in assessing the general state of the body.
They are done on a blood sample from a vein and can identify changes even when there are no symptoms.
Here are the main parameters:
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Full blood count: analyses red cells, white cells and platelets, identifying anaemia, infection, inflammation or clotting disorders.
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Blood sugar: measures the sugar in the blood and detects early changes that can lead to diabetes.
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Lipid profile: assesses total, HDL and LDL cholesterol and triglycerides, useful to estimate cardiovascular risk.
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Liver function: values such as ALT, AST and gamma GT show whether the liver is working properly.
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Kidney function: creatinine and urea show whether the kidneys are filtering waste properly.
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Electrolytes (sodium, potassium, chloride): essential for fluid balance, muscle contraction and proper heart function.
Many check-ups also include:
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Total and fractionated bilirubin
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ESR and C-reactive protein (CRP)
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Protein electrophoresis
These additional tests help assess inflammation, liver function and chronic conditions that may need further investigation.
Which tests should I have for a complete check?
As well as the basic tests, there are more in-depth analyses that give a detailed picture of your health, especially if you have symptoms, risk factors or a family history.
Among the most useful tests in a complete check-up are:
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Thyroid hormones (TSH, FT3, FT4): essential to assess metabolism.
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Specific hormone profiles for men and women.
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Nutritional status: vitamin D, vitamin B12, ferritin.
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Iron metabolism: serum iron and transferrin.
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Homocysteine: useful to estimate some cardiovascular risks.
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Glucose and lipid metabolism markers: insulin, glycated haemoglobin, oxidised LDL.
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Clotting tests (PT/INR, aPTT, fibrinogen).
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Uric acid, an important marker if there is a risk of gout or metabolic syndrome.
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Tumour markers, requested only in specific cases on medical advice.
These tests can identify metabolic imbalances, hormonal changes, nutritional deficiencies or inflammation that may not cause immediate symptoms.
How often should I have tests?
In general, it is good practice to have a blood test at least once a year.
You should have them more often if you have conditions such as:
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diagnosed chronic diseases
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long-term medication
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a particular diet (vegetarian, vegan, high-protein, restrictive)
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intense sport
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a family history of certain conditions
It is always the doctor who interprets the results, linking them to the medical history and any symptoms the patient reports.
Frequently asked questions
What are the most important tests to have?
The basic tests: full blood count, blood sugar, cholesterol, triglycerides, liver and kidney function and electrolytes.
Why have tests even if I feel well?
Many conditions show no early symptoms. Blood tests can pick up any abnormality early.
How often should they be repeated?
Once a year for most people, more often in particular circumstances.
When should a result be a concern?
When it is far from the reference range. In any case, it is always the doctor who decides whether further tests are needed.
CalatafimiMed Analysis Laboratory: prevention starts with a simple blood test
Our laboratory is equipped to offer complete, reliable and fast analyses, with the option of tailoring the diagnostic pathway to each patient’s needs.
Taking care of your health also means spending a few minutes a year on a check that can really make a difference.
Send us your request
*Waiting times refer to working days and to the first available specialist.
CalatafimiMed is in Palermo and is open from Monday to Saturday. For any further information you can contact the centre here.
