Which of the following is NOT an endpoint for blood transfusion?

Systolic blood pressure of 80 mm Hg is not considered an adequate endpoint for a blood transfusion. Effective blood transfusion aims to restore adequate perfusion and oxygenation to vital organs, and a systolic BP of 80 mm Hg indicates a state of significant hypotension that can lead to inadequate tissue perfusion.

In contrast, palpable radial pulse signifies improved circulation and is a positive sign of hemodynamic stability. Improved mental status reflects adequate cerebral perfusion, which is crucial after a significant loss of blood volume. Improved urine output is another key indicator of renal perfusion and overall systemic functionality; increased urine output suggests that the kidneys are appropriately filtering blood and receiving adequate perfusion. Each of these endpoints indicates recovery and effective resuscitation regarding blood volume and circulation, while a systolic BP of 80 mm Hg denotes continued risk of shock and organ failure, making it an unsuitable endpoint for the success of a transfusion.