How to use the Laboratory in Quarantine Zone: The Last Check

1 day ago 7

The lab in Quarantine Zone

Screenshot by Destructoid

Just don't put someone innocent.

Image of Arka Sarkar

|

Published: Jan 13, 2026 11:20 am

The Laboratory is one of the more advanced features to use in Quarantine Zone: The Last Check, enabling you to figure out new symptoms.

Symptoms are key to helping you figure out who is infected and who isn’t. When you unlock more items, you’ll be able to look for different symptoms. However, you’ll also end up with survivors who have unidentified symptoms. That’s where the Laboratory comes in.

How to find new symptoms using the Laboratory in Quarantine Zone: The Last Check

The first task is to look for survivors with completely new symptoms. Once you find one, notice the symptoms they have (both known and unknown). Then, assign them to the Laboratory, and follow them until they reach there.

Patient in labScreenshot by Destructoid

When you have multiple survivors with unknown symptoms, you can make some wait in Quarantine. Survivors will always die when you put them in the Laboratory to extract their organs.

How to use the Laboratory in Quarantine Zone: The Last Check

Once you have sent someone to the lab, they will be inside the glass cage. Go over to the computer near the cage, and you’ll be able to extract their organs. The infected organs will be highlighted in green, but other organs can block them.

Organs of patientsScreenshot by Destructoid

You’ll need to use the laser to destroy the blocking organs. They will be highlighted in yellow. However, don’t destroy any organs highlighted in red. That will automatically fail the process and remove all bonuses you could have obtained.

Once you’ve a clear path to the unblocked organ, you can press the extract button to take it out. This will automatically kill the survivor. The next task is to analyze the organ.

Extracted organScreenshot by Destructoid

Pick up the extracted organ and drop it in the sample collector. You’ll need to keep holding your LMB while carrying the organ. Click on the collector to start the process. Once done, you’ll get a test tube with organ materials. Put the tube in the analyzer, start the machine, and wait for the results to arrive.

Screenshot by Destructoid

If the survivor was indeed infected, you’ll have a new symptom to check. If not, the process will be a failure, and you’ll end up killing a survivor for no reason. Oops!


Destructoid is supported by our audience. When you purchase through links on our site, we may earn a small affiliate commission. Learn more about our Affiliate Policy

Read Entire Article