Stethoscope Guide
The stethoscope is essential for detecting respiratory symptoms. Learn to identify different breathing patterns and know when to quarantine or liquidate survivors.
Tool Quick Info
Visual Cues
Survivors with stethoscope symptoms often display visual cues: coughing, sneezing, or hiccupping. If you notice these behaviors, prioritize checking their breathing with the stethoscope.
How to Use the Stethoscope
Equip the Stethoscope
Pick up the stethoscope from the medical station or your inventory. It will display a view of the survivor's lungs with several black spots marked.
Hover Over Black Spots
Move your cursor to hover over each black spot on the lung diagram. These are the listening points where you can detect breathing abnormalities.
Listen Carefully to Each Spot
At each black spot, listen to the breathing pattern. Compare the sound to the three possible symptoms: slight wheeze (green), heavy wheeze with gurgling (orange), or zombie growl (red).
Mark the Worst Symptom Only
You only need to mark the most severe symptom found. If you hear both green and orange symptoms, only mark the orange one.
Sound Pattern Recognition
Normal Breathing (No Symptom)
Clear, regular breathing sounds with no wheeze, gurgling, or abnormalities. Do not mark anything.
Sickly Breath
Sound Cue
Breathing with a slight wheeze
Action
Allow into Living Block
A subtle wheezing sound during breathing. The survivor is not infected, just has minor respiratory issues.
Nonspecific Respiration
Sound Cue
Heavy wheeze with gurgling mixed in
Action
Send to Quarantine
More severe breathing issues with audible gurgling. Must be unlocked in the lab first. The survivor may or may not be infected.
Zombie Growl
Sound Cue
Zombie growling instead of breathing
Action
Liquidate Immediately
Unmistakable zombie sounds coming from the lungs. The survivor is definitely infected and must be eliminated. Must be unlocked in the lab first.
Symptoms Detected by Stethoscope
| Symptom | Sound Cue | Danger Level | Action |
|---|---|---|---|
| Sickly Breath | Breathing with a slight wheeze | Green - Safe | Allow into Living Block |
| Nonspecific Respiration | Heavy wheeze with gurgling mixed in | Orange - Quarantine | Send to Quarantine |
| Zombie Growl | Zombie growling instead of breathing | Red - Infected | Liquidate Immediately |
Pro Tips
Common Mistakes to Avoid
Not checking all listening points
✓ Always hover over every black spot - symptoms can be at any one
Marking both green and orange symptoms
✓ Only mark the most severe symptom you find
Using stethoscope on survivors without the visual cue
✓ Check the entrance scanner - if the stethoscope symbol isn't lit, skip this tool
Confusing normal breathing with symptoms
✓ Normal breathing has no wheeze at all - if you hear any abnormal sound, it's a symptom