All Blood Specimen Locations in Resident Evil Requiem – Care Center Guide

What Are Blood Specimens in RE Requiem?

Blood Specimens are collectible samples you find scattered throughout Resident Evil Requiem’s locations. Once analyzed at a laser microscope station, they permanently unlock new crafting recipes for Grace – ranging from basic ammo to powerful injectors that give you a real edge in combat.

The Care Center holds three of these samples. None of them are tied to a specific quest marker, so it’s surprisingly easy to walk straight past them if you’re not paying attention. Below is exactly where each one is and how to clear the analyzer puzzle that follows.

💡 Before you start: You can grab the first specimen without any special access. The second and third require a Level 1 ID Wristband – make sure you have it before heading deeper into the Care Center.

What You Need Before You Collect

⚠️ Warning: When approaching the Lead Researcher’s Office, a large zombie will start chasing you. Don’t fight it head-on – loop it downstairs to create enough distance, then grab the wristband off the corpse. Clean run, no waste.

Blood Specimen (Denatured) – Location & Puzzle

Location: Blood Lab, accessible through the Examination Room with the organless corpse puzzle.

This is the one you’re most likely to stumble upon naturally. The Blood Lab is part of the critical path, and the specimen is sitting in plain sight near the laser microscope. Pick it up and analyze it on the spot.

🔬 Analyzer Puzzle Solution

Press the middle cubic bond – this activates all atoms simultaneously and completes the sequence in a single move.

✅ Unlocked Recipes

• Handgun Ammo Recipe
• Hemolytic Injector Recipe

The Hemolytic Injector is worth paying attention to. It’s specifically effective against zombies and lets you drop them significantly faster than standard combat options. Great pick for resource conservation in tight encounters.

Blood Specimen (Converged) – Location & Puzzle

Location: Waiting Room → locked Closet (requires Level 1 ID Wristband).

After dealing with the zombie near the Lead Researcher’s Office and securing the wristband, head to the Waiting Room. You’ll immediately notice the atmosphere – a zombie maid scrubbing the floor, blood everywhere. Lovely place. The closet on the side wall is what you’re after.

📦 Items Inside the Closet

• Handgun Ammo
• 12.7x55mm Ammo
• Scrap
• Blood Specimen (Converged)

🔬 Analyzer Puzzle Solution

1. Press the middle cube from the initial three.
2. Two additional cubes appear below.
3. In the new four-cube formation, press the center cube to complete the sequence.

✅ Unlocked Recipes

• Med Injector Recipe
• 12.7x55mm Ammo Recipe

The Med Injector becomes one of Grace’s most reliable survival tools. And unlocking the 12.7x55mm recipe means you’re no longer dependent on scavenging this ammo – you can craft it on demand once you have the materials.

Blood Specimen (Reversible) – Location & Puzzle

Location: Blood Lab – locked room requiring Level 1 ID Wristband.

Back in the Blood Lab, there’s a side room that stays locked until you have the wristband. By this point you should already have it. Head inside.

📦 Items Inside the Room

• Green Herb
• Scrap
• Transfusion Bag (50)
• Empty Injector
• Victor’s Journal Entry
• Blood Specimen (Reversible)

🔬 Analyzer Puzzle Solution

1. Press the middle cube.
2. From the three cubes that appear below, press the center one.
3. Four cubes remain active.
4. Press the two corner cubes that are not connected to the center – one on each side.

✅ Unlocked Recipes

• Steroids Crafting Recipe
• Stabilizer Crafting Recipe

Both of these are late-game crafting staples. Steroids and Stabilizers are typically scarce as loot drops, so having the crafting option available changes how you manage resources in the second half of the game.

❌ Common Mistakes to Avoid

• Skipping the wristband pickup – Two out of three specimens are locked behind it. Make sure you grab it before leaving the upper floor area.
• Fighting the big zombie near the office – It’s a waste of ammo. Just run it in circles and create enough space to collect the wristband without damage.
• Leaving the Blood Lab too early – The Denatured specimen is easy to grab, but the Reversible one in the locked room of the same lab is easy to forget on your first pass.
• Not analyzing immediately – The microscope is right there. Analyze on the spot so you don’t have to backtrack.

Crafting Overview – What All Three Specimens Unlock

With all three analyzed, Grace’s crafting options expand significantly – covering ammo, healing tools, and performance-enhancing consumables. It’s one of the best early investments you can make in the Care Center section.

FAQ

Q: Do I need to be on a specific mission to collect Blood Specimens in the Care Center?
A: No. All three are free-roaming collectibles that don’t require a specific objective to be active. You can grab them any time during natural exploration.

Q: What happens if I miss a Blood Specimen in the Care Center?
A: As long as you haven’t left the area permanently, you can backtrack. Just make sure you collect all three before the narrative locks you out of the Care Center.

Q: Is the Level 1 ID Wristband missable?
A: It’s on a corpse near the Lead Researcher’s Office, which is an area you’ll naturally pass through. It’s not missable under normal exploration, but it’s easy to miss if you’re rushing through.

Q: Which Blood Specimen should I analyze first?
A: Start with Denatured – it’s accessible without the wristband and gives you the Hemolytic Injector early, which pays off immediately in the Care Center’s zombie encounters.

Q: Can I craft the 12.7x55mm ammo right after unlocking the recipe?
A: Yes, provided you have the required materials. The recipe unlocks permanently, so check your inventory after analyzing the Converged specimen.