Which of the following is associated with pulses alternans?

Pulses alternans is a clinical finding that is characterized by a pattern where there is a strong pulse followed by a weak pulse, creating a rhythmic alternation. This phenomenon is often associated with conditions like heart failure or severe left ventricular dysfunction. The presence of alternating pulse strength is indicative of fluctuations in stroke volume and is typically a sign of compromised cardiac function.

The first option accurately describes this characteristic of pulses alternans, as it specifically mentions the weak pulse alternating with a strong pulse. This feature is important for nurses and healthcare providers as it can provide critical insights into a patient’s cardiovascular status.

The other choices lack the definition of pulses alternans. The second option describes a regular rhythm of strong pulses, which does not reflect the alternating nature of the pulse amplitude. The third option refers to consistent pulse amplitude with breathing, which relates to a different phenomenon, likely pulsus paradoxus. The fourth option indicates an increase in heart rate with each breath, representing a different concept called sinus arrhythmia rather than the alternating pulse pattern observed in pulses alternans. Thus, the first option is the only one that correctly describes this specific clinical finding.