Packed red blood cells

  • For acute blood loss
  • to ↑ O2-carrying capacity
    • if end organ ischemia.

  • 1 U PRBC
    • → ↑ Hb by ~1 g/dL.
  • Hb goal >7 g/dL
    • adequate for UGIB & critically ill
      • (NEJM 2013;368:11 & 2014;371:1381),
  • Hb goal ≥8
    • in acute MI and
    • peri-cardiac surgery
      • (NEJM 2018;379;1224; JAMA 2021;325:552).