🔬 Today's #unknowns is brought to you by the #bloodbank! 🩸 1️⃣ What is forward type? 2️⃣ What is the reverse type? 3️⃣ What might cause these results and how might you work this case up? 👋 Answer coming Tuesday! 📷 derived from MTS A/B/D Monoclonal Grouping Card package insert