QRSkompleksi

QRSkompleksi, also known as the QRS complex, is a specific pattern observed on an electrocardiogram (ECG or EKG), which is a test that measures the electrical activity of the heart. The QRS complex represents the depolarization of the right and left ventricles of the heart, which is the process that initiates the contraction of these chambers. This complex is typically the most prominent feature on an ECG and is crucial for assessing the heart's electrical activity and mechanical function.

The QRS complex is composed of three waves: the Q wave, the R wave, and the S wave. The Q wave is a small downward deflection that follows the P wave, which represents atrial depolarization. The R wave is a large upward deflection that follows the Q wave, and the S wave is a downward deflection that follows the R wave. The duration, amplitude, and shape of the QRS complex can provide valuable information about the heart's electrical conduction system and overall health.

Abnormalities in the QRS complex can indicate various cardiac conditions, such as myocardial infarction (heart attack), bundle branch blocks, ventricular hypertrophy, and electrolyte imbalances. For example, a widened QRS complex may suggest a delay in ventricular depolarization, which can be caused by conditions like bundle branch blocks or ventricular tachycardia. Conversely, an abnormally deep or wide Q wave may indicate a previous myocardial infarction.

In summary, the QRSkompleksi, or QRS complex, is a critical component of the ECG that reflects the electrical activity and mechanical function of the heart's ventricles. Understanding the normal and abnormal features of the QRS complex is essential for diagnosing and managing various cardiac conditions.