Final answer:
The best method to find a pulse in a patient with Peripheral Arterial Disease (PAD) is by using a Doppler ultrasound device, which is more reliable than palpation, stethoscope, or pulse oximeter in such cases.
Step-by-step explanation:
The best way to find a pulse in a patient with Peripheral Arterial Disease (PAD) is by using a Doppler ultrasound device. PAD can make pulse detection via palpation difficult due to weakened or absent pulses in the affected extremities. A Doppler ultrasound device detects blood flow and pulse waves, which provides a more accurate reading when typical pulses are not palpable. While a stethoscope is useful for auscultation of heart sounds, it is not particularly effective for finding a pulse in PAD patients. A pulse oximeter can measure the oxygen saturation of the blood and detect a pulse, but its accuracy can also be affected by reduced circulation. Therefore, the Doppler ultrasound remains the most reliable method in this scenario.