Respiratory Laboratory

As the Respiratory Laboratory of Anadolu Medical Center, we provide services through various tests and procedures related to respiratory performance issues.

What tests and procedures do we perform in our laboratory?

Pulmonary Function Test

This is a procedure to measure lung function using a special device called a spirometer. It is used to determine the volume, flow, and capacities of the air used or existing in the lungs.

Bronchodilation Test (Reversibility Test)

This test evaluates the degree of change in airway narrowing (obstruction) by administering a short-acting bronchodilator through inhalation in individuals with airway obstruction. There are certain medications that need to be stopped before the reversibility test if they are being used. You should definitely consult your doctor before the test.

Bronchial Provocation Test

Airway hyperreactivity is one of the characteristics that can contribute to the diagnosis of asthma. This test is performed in individuals who are suspected of having asthma but show no signs of airway obstruction in pulmonary function tests, to determine airway hyperreactivity. There are certain medications that need to be stopped before the provocation test if they are being used. You should definitely consult your doctor before the test.

Helium Diffusion Respiratory Test (DLCO) and Whole Body Plethysmography

This procedure measures the closed lung volumes, gas permeability capacity, airway resistance, and gas exchange area using a special device and a specific gas. The DLCO test can also be referred to as the TLCO test. An up-to-date hemoglobin level (mg/dl) is required.

Intrathoracic Pressure Measurement (PImax, PEmax)

This is used in the diagnosis and monitoring of suspected respiratory muscle weakness or known diseases. PImax measures the strength of the diaphragm and other inspiratory respiratory muscles, while PEmax measures the strength of abdominal and other expiratory respiratory muscles.

6-Minute Walk Test

This procedure involves the patient walking as far as possible within six minutes without the need for a special device. Blood pressure, oxygen saturation from the fingertip, and pulse are monitored at specific intervals and at the end of the test. At the conclusion of the test, the distance walked and the level of breathlessness are calculated, and the data is reported in a combined manner.

Cardiopulmonary Exercise Testing (VO2 Max Test)

These tests allow us to obtain detailed information about various diseases by measuring parameters related to cardiopulmonary capacity that cannot be determined at rest during exercise. They are primarily conducted on a treadmill or bicycle under standard exercise protocols.

These tests require certain preparations beforehand. It is advisable to wear comfortable clothing, refrain from smoking and consuming caffeinated beverages on the day of the test, and not eat for two hours prior. Patients should also bring previous results from imaging, laboratory tests, consultation notes, ECHO, and other relevant information.

Where do we use the VO2 Max test in respiratory diseases?

• In the differential diagnosis of lung diseases
• In the evaluation and follow-up of vascular diseases (pulmonary arterial hypertension)
• In cardiac diseases
• In muscle diseases (differentiation from myopathy)
• In pre-surgical evaluation (especially to determine risks prior to lung and heart surgery)
• In the assessment of conditioning and exercise intolerance

Exhaled CO Measurement (ppm)

This procedure measures the carbon monoxide and carboxyhemoglobin levels that accumulate in the lungs due to cigarette exposure or exposure to carbon monoxide. It can be easily measured with a deep exhalation. It is often used in smoking cessation efforts.