Complete Blood Count (CBC)

A complete blood count is one of the most fundamental laboratory tests, allowing 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 on:

• 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, by assessing the number and distribution of leukocytes;
• the overall adaptive state of the body, especially in cases of chronic fatigue, weakness, or reduced productivity.

The CBC is often the first test that allows for an objective distinction between subjective complaints and real physiological changes in the body.

Iron (Fe) Test

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

This test is important because:

• iron deficiency directly affects physical and mental performance;
• a reduced iron level can manifest as constant fatigue, weakness, dizziness, shortness of breath, and decreased concentration;
• iron fluctuations can be related to poor diet, 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 in conjunction with other indicators of iron metabolism.

Ferritin (FERRI)

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

The significance of ferritin testing:

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

It should be considered that ferritin is also an acute phase protein, so in the presence of active inflammation, its concentration may be elevated even if actual iron stores are limited. Therefore, ferritin results are always interpreted comprehensively.

What Benefits Does This Test Package Provide?

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

• determine whether fatigue and reduced productivity might be related to iron deficiency or anemia risk;
• distinguish subjective sensations from real laboratory changes;
• identify the depletion of the body's resources early, before the appearance of pronounced clinical symptoms;
• make informed, individually tailored decisions rather than rely on guesses or random supplement choices.

The obtained results can form a reliable basis for:

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