A Patient Was Admitted to the Emergency Department for Treatment

A patient was admitted to the emergency department for treatment of severe infection.Which objective parameters would increase the nurse's concern that shock is developing? Note: Credit will be given only if all correct choices and no incorrect choices are selected.
Select all that apply.

A) Serum lactate level is 5.4 mmol/L.
B) Base deficit is −9 mmol/L.
C) SvO₂ is 68%.
D) pHi is 6.9.
E) Arterial pH is 7.38.