What a Comprehensive Check-Up Actually Examines

By Dr. Gabriel Grabowski, specialist in internal medicine and pulmonology

I often find in my practice that the phrase “complete check-up” means different things to different people. Some expect a blood test; others imagine a scan of every organ. In medical terms, a useful check-up is not about doing every available test. It is about understanding your health, examining you carefully and choosing investigations that answer relevant questions.

For people over 50, this may include reviewing existing conditions, medication and age-appropriate prevention. The scope depends on symptoms, personal and family history, previous findings and individual preferences. No check-up can exclude every illness.

The conversation is the starting point

Before I examine someone, I ask how they have been feeling and what has changed. Tiredness, breathlessness, chest discomfort, altered bowel habits or reduced exercise tolerance can have many explanations. When a symptom began, what brings it on and how it affects daily life are often more informative than a broad panel of tests.

A medical history usually covers:

• Previous illnesses, operations and hospital stays
• Prescription medicines, non-prescription products and supplements
• Allergies and relevant illnesses in the family
• Smoking, alcohol, diet, physical activity and sleep
• Vaccinations and previous screening examinations

I also ask about everyday independence, mood and any concerns the patient wants to discuss. Bringing a medication list and previous reports can help avoid unnecessary repetition. New symptoms should be assessed in their own right rather than postponed until a routine check-up.

What the physical examination can tell us

The examination is guided by the conversation. Common elements include blood pressure, pulse, weight and, where relevant, oxygen saturation. I listen to the heart and lungs, examine the abdomen and look for signs such as swelling in the legs. Other checks depend on the symptoms and history.

An examination can identify findings that need clarification, but it has limits. Normal heart and lung sounds do not rule out every cardiovascular or respiratory condition. Likewise, one raised blood pressure reading does not necessarily establish hypertension; repeated measurements or home monitoring may be appropriate.

I explain what I find and whether it changes the next steps. A check-up should leave room for questions, not simply produce a list of measurements.

Blood tests: selected for a reason

Blood tests can provide information about blood cells, blood sugar, kidney function and cholesterol. Depending on the situation, liver values, thyroid function or other measurements may be useful. Not everyone needs the same panel, and more testing does not automatically mean better care.

For example:

• A blood count may help investigate anaemia when there is unexplained tiredness or breathlessness.
• Glucose or HbA1c may be appropriate when assessing diabetes risk.
• Cholesterol results contribute to an overall cardiovascular risk assessment.
• Kidney function and electrolytes may be relevant when monitoring certain medicines.

Results need context. A value just outside the reference range is not always a sign of disease, and a result within range does not explain every symptom. Unexpected findings sometimes require a repeat test rather than immediate treatment. Tumour markers are generally not suitable as a broad cancer screening test in people without symptoms.

ECG, ultrasound and lung function

These investigations answer different questions. They are not automatically necessary for everyone attending a check-up.

An ECG records the heart’s electrical activity. It can help assess heart rhythm and certain conduction abnormalities, particularly when symptoms or examination findings suggest a reason to investigate. A resting ECG is a short snapshot: it may miss intermittent rhythm problems and cannot reliably exclude coronary artery disease.

Ultrasound uses sound waves to examine selected structures, such as abdominal organs. A dedicated heart ultrasound, or echocardiogram, assesses heart structure and function. Ultrasound does not use ionising radiation, but it cannot show everything. Whether it is useful depends on the clinical question; incidental findings can sometimes lead to further investigations.

Lung function testing, especially spirometry, measures how much air you breathe out and how quickly. I may recommend it for persistent cough, wheezing, breathlessness or suspected airway disease. It can support the assessment of conditions such as asthma or COPD. Correct technique matters, and normal spirometry does not exclude every lung condition.

Putting the findings together

At the end, I bring the history, examination and test results together. We discuss what is reassuring, what remains uncertain and whether follow-up, treatment review or further investigation is appropriate. Recommended screening is considered separately according to age, risk and local guidance.

Consultations are possible at the three practices in Nürnberg, La Cala de Mijas and Estepona. The appropriate scope of a check-up can be discussed individually at the appointment.

This article is general information and does not replace a personal medical consultation.