Which treatments are listed as needed for the hypothetical canine patient requiring blood products and vitamin K reversal?

• A. Plasma, pRBCs, Vitamin K
• B. Plasma only
• C. pRBCs only
• D. Vitamin K only

Answer: (A)

When a canine patient needs blood products and reversal of an anticoagulant, you must address three issues at once: restore oxygen delivery, correct coagulopathy, and reverse the anticoagulant effect. Plasma provides clotting factors and helps expand volume, while packed red blood cells restore the red cell mass to improve oxygen transport. Vitamin K reverses the anticoagulant effect by allowing the liver to re-synthesize clotting factors. Using only one or two of these would leave critical gaps: plasma alone won’t fix anemia, pRBCs alone won’t correct factor deficiencies or reversal, and vitamin K alone won’t supply the immediate clotting factors or blood volume. So, combining plasma, pRBCs, and vitamin K covers all necessary aspects of treatment.