Shock Index

References:

• Rady MY, Smithline HA, et al. A comparison of the shock index and conventional vital signs to identify acute, critical illness in the Emergency Department. Ann Emerg Med. 1994; 24: 685-690.
• Yealy DM, Delbridge TR. The shock index: All that glitters. Ann Emerg Med. 1994; 24: 714-715.