How frequently should vital signs be reassessed for unstable patients?

Vital signs should be reassessed every 5 minutes for unstable patients due to the need for close monitoring of their condition. In emergency medical situations, unstable patients can deteriorate rapidly, and timely changes in vital signs can indicate a need for immediate intervention. This frequent reassessment is crucial because it allows EMS providers to detect any deterioration in the patient's condition quickly, enabling them to make informed decisions about necessary treatments or interventions.

Monitoring vital signs every 5 minutes provides an opportunity to observe trends and changes that could signify worsening status, allowing for timely adjustments in care. This practice aligns with the protocols that prioritize patient safety and responsiveness during critical situations.