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Resident Evil Requiem Blood Specimen Analyzer (Normal & Insanity)

Last Updated: March 24, 2026 (verified latest patch)

Blood Specimens are among Grace's best crafting sources. There are 3 specimens in Normal and 4 in Insanity (all in the Care Center). Use the Analyzer in the Blood Lab and click the nodes in the correct order to unlock permanent upgrades.

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Blood Specimen Puzzle Guide

This guide provides the locations and step-by-step solutions for the 4 Blood Specimen puzzles found in the Blood Lab area.

Denatured Blood Specimen puzzle solution

Location: Found on the desk directly next to the Analyzer in the Blood Lab (East Wing).

Analyzer clicks:
  • 1. Click the Center Node (The single middle atom).
  • 2. All nodes turn red instantly.
Denatured solution reference

Reward: Handgun Ammo + Hemolytic Injectors.

Converged Blood Specimen puzzle solution

Location: Inside the Closet adjacent to the Waiting Room (West Wing). Requires ID Wristband Level 1.

Analyzer clicks:
  • 1. Click the Top-Middle node.
  • 2. Click the Bottom-Center node.
Converged solution reference

Reward: Med Injectors & 12.7x55mm Ammo recipes.

Reversible Blood Specimen puzzle solution

Location: In the Storage Room connected to the Blood Lab. Use your Level 1 Wristband to enter.

Analyzer clicks:
  • 1. Click the Bottom-Left node.
  • 2. Click the Middle (Center) node.
  • 3. Click the Bottom-Right node.
  • 4. Click the Lower-Middle-Right node (directly to the left of the bottom-right one).
Reversible solution reference

Reward: Steroids & Stabilizers (Permanent Stat Boosts).

Polymerized (Insanity only) Blood Specimen puzzle solution

Location: Located in the Locked Inner Room of the Blood Lab (behind the security gate).

Analyzer clicks:

This is the most complex layout.

  • Step 1: Click all four corner nodes.
  • Step 2: Click the Dead Center node.

Note: If some nodes remain white, toggle the nodes that are only connected to those specific white atoms.

Polymerized (Insanity only) solution reference

Reward: R.I.P. Knife + Handgun Ammo x30.

Related reading

Safe Codes (Homepage)Blood Specimen PuzzlesPuzzle BoxesKeys & Locked DoorsThe Final Puzzle

Disclaimer: This is an unofficial fan guide. All rights belong to Capcom. For reference only.