What type of waveform is observed with the right ventricle in a Swan Ganz catheter?

The waveform observed from the right ventricle using a Swan-Ganz catheter is characterized as low amplitude and low pressure. This is indicative of the hemodynamic environment within the right ventricle, which typically generates lower pressures compared to the left ventricle. The right ventricle operates under a lower pressure system, as its primary function is to pump deoxygenated blood to the lungs for oxygenation through the pulmonary artery.

When using a Swan-Ganz catheter, the waveforms captured reflect the pressure changes within the heart chambers as well as the underlying physiology. The low amplitude signifies the relatively gentle pressure fluctuations occurring as the heart fills and ejects blood into the pulmonary artery. This contrasts significantly with the higher pressure and amplitude waveforms seen in the left ventricle, which must push blood into the systemic circulation against a higher resistance.

Understanding these waveform characteristics is crucial for critical care paramedics, as it allows for accurate assessment of right heart function and can help diagnose various cardiac conditions.