Complete Blood Count (CBC)

The complete blood count is one of the most fundamental laboratory tests that allows evaluation of the main blood components and the overall condition of the body. It includes the count of red blood cells (erythrocytes), hemoglobin concentration, hematocrit, leukocytes, and platelets.

This test provides information about:

• the efficiency of oxygen transport, which directly depends on the number of erythrocytes and hemoglobin;
• the presence or risk of anemia (iron deficiency, chronic disease, or other causes);
• inflammatory or infectious processes, evaluating the number and distribution of leukocytes;
• the overall adaptive state of the body, especially in cases of chronic fatigue, weakness, or decreased work capacity.

The CBC is often the first test that allows objective differentiation of subjective complaints from real physiological changes in the body.

Iron (Fe) Test

Iron is a vital microelement necessary for hemoglobin synthesis and effective oxygen transport to tissues. The serum iron test shows the amount of circulating iron in the body at that time.

This test is important because:

• iron deficiency directly affects physical and mental work capacity;
• reduced iron levels can manifest as constant fatigue, weakness, dizziness, shortness of breath, and decreased concentration;
• iron fluctuations can be associated with inadequate nutrition, increased demand, blood loss, or absorption disorders.

It is important to note that serum iron levels can vary throughout the day and depend on various factors, so this test is always evaluated together with other iron metabolism indicators.

Ferritin (FERRI)

Ferritin is the main protein reflecting the body's iron reserves. It is one of the most sensitive and informative indicators for early detection of developing iron deficiency.

The significance of the ferritin test:

• ferritin concentration decreases even before the onset of anemia and hemoglobin drop;
• it allows assessment of whether the body has sufficient iron reserves for daily needs;
• it helps distinguish functional fatigue from the depletion of biological resources;
• it is crucial for assessing long-term fatigue, decreased stress resistance, or chronic ailments.

It should be considered that ferritin is an acute phase protein, so during active inflammation, its concentration may be increased even if real iron reserves are limited. For this reason, ferritin results are always interpreted comprehensively.

What Benefits Does This Test Package Provide?

This combination of tests allows for a comprehensive and objective evaluation of energy deficiency and overall well-being. It provides the opportunity to:

• determine if fatigue and decreased work capacity may be related to iron deficiency or anemia risk;
• distinguish subjective feelings from real laboratory changes;
• early identify depletion of the body's resources before the onset of pronounced clinical symptoms;
• make informed, individually tailored decisions rather than rely on guesses or random supplement choices.

The obtained results can serve as a reliable basis for:

• dietary corrections;
• targeted selection of microelement supplements;
• adjustments to lifestyle and workload;
• or timely consultation with a doctor, considering the individual clinical situation.