To check the blood pressure of a person who has neither arms nor legs, you can measure it using the thigh or another large artery site.

Here’s how it’s done:

1. Use the thigh (popliteal artery):
Place a specially sized blood pressure cuff around the thigh , just above the knee. The stethoscope is placed over the popliteal artery , which runs behind the knee. This method gives an accurate reading.

2. Use advanced digital or wrist monitors (if some limb portion exists):
If even a partial limb or wrist is present, some automated devices may provide a rough estimate.

3. Use central monitoring in clinical settings:
If in a hospital, blood pressure can also be monitored using invasive arterial lines , typically inserted into larger arteries like the femoral artery.

To check the blood pressure of a person who has no arms or legs , you can use the  following clinically accepted alternatives :
- Use the thigh ( most preferred method ) .
- Use the wrist or ankle ( if present ) .
- Use an Invasive or Doppler method ( if necessary ) .